final report project -“investigation of presence of

FINAL REPORT

PROJECT -“INVESTIGATION OF PRESENCE OFELEMENTS IN INDUSTRIAL AND MUNICIPAL WASTE

OF WEST BENGAL”.

MARCH 2002 – MARCH 2003

INSTITUTE OF WETLAND MANAGEMENT AND ECOLOGICAL DESIGN (IWMED),LA – BLOCK, SECTOR – III, SALT LAKE, KOLKATA – 700 098

AND

CENTRAL LABORATORY AND WASTE MANAGEMENT CELL (WMC)WEST BENGAL POLLUTION CONTROL BOARD (WBPCB),

PARIBESH BHABANSALT LAKE, KOLKATA-700 098

2

CONTENTS

Pages

Introduction 3

Chapter-1 Objectives & Methodologies 4-5

Annexure-I Samples’ Identity& industial waste generation (annual) 6-7

Chapter-2 Reports of the samples from secondary lead smelting units 8-32

Chapter-3 Reports of the samples from Metallurgical units 33-42

Chapter-4 Reports of the samples from Engineering units 43-46

Chapter-5 Reports of the samples from Galvanizing units 47-51

Chapter-6 Reports of the samples from Dichromate Units 52-60

Chapter-7 Reports of the samples from Chemical Industries 61-67

Chapter-8 Reports of the samples from Zinc Processing Units 68-73

Chapter-9 Reports of the samples from Dyeing Industries 74

Chapter-10 Reports of the samples from Electroplating Units 75-76

Chapter-11 Reports of ‘other samples’ 77

Chapter-12 Reports of non-industrial samples 78-82

Chapter-13 Comparative analytical data of the samples using AAS and XRF 83-84

Chapter-14 Reports of municipal solid waste samples 85-94

Chapter-15 Conclusions & Recommendations 95

3

INTRODUCTION

Nowadays, ‘Environmental Pollution Control’ has become the mostessential field of interest all over the world. The alarming increase of pollution dueto unscientific dumping of industrial and municipal wastes and/or to discharge ofeffluents from the industrial units into water bodies is a matter of great concern indeveloping countries. Now, it is the specific time to study the different forms ofpolluting agents in order to control the environmental pollution where solid wastemanagement is one of the important fields of interest.

Investigation of presence of elements in municipal and industrial wastescan theoretically be simulated by knowing the garbage status of the locality andraw materials used by various industries, respectively. However, the objective ofthe present project is to measure/study the toxicity level generated by variousmunicipalities and industries and to make them conscious statistically in order tomaintain the rules and regulations as directed by the state Pollution ControlBoard.

Generally, leachate is generated on account of the infiltration of water intolandfills and its percolation through waste as well as by the squeezing of thewaste due to self-weight. The quantity of leachate generated in a landfill isstrongly dependent on the quantity of infiltrating water. This, in turn, is dependenton weather and operational practices. The amount of rainfalling on landfill, to alarge extent, controls the leachate quantity generated. Precipitation depends ongeographical location. However, the statistical representation of analytical resultsof corresponding leachates will help the industries to be aware about theirpresent status and will certainly help them to take necessary action in order toprotect the environment. The other component of the project, i.e., comparison ofAAS (Atomic Absorption Spectrometry) data with XRF (X-Ray Fluoroscence)results is still in progress. The results so far obtained are the combined results ofsome samples collected earlier from wastes of various steel industries and thesamples collected within the project tenure which are presented in ANNEXURE -II.

This presentation constitutes analytical reports of 168 industrial samples,11 non-industrial samples & 21 municipal samples and special emphasis havebeen tabulated statistically upon the toxicity level of various elements, area-wise.

4

CHAPTER-1

OBJECTIVES & METHODOLOGIES

Objectives of the study:

The main objective of this study is to investigate the amount of hazardouselements present in industrial and municipal solid wastes in West Bengal. Thespecial emphasis has been given on the leaching status of some specific toxicelements that causes environmental pollution. The other objective of the study isthe comparative study of the same sample using two different facilities, e.g.,Atomic Absorption Spectrometer (AAS) and X-Ray Fluoroscence (XRF).

Scope of work:

In order to achieve the above objective the following methodologies havebeen carried out-

1). Identification of solid waste generating industries as per Hazardouswaste (Management & Handling) Rules 1989.

2). Collection of the sample from the desired source.

3). Proper drying, crushing & mixing of the collected samples.

4). Weighing of the samples in specific amount and then are subjected tochemical and instrumental proceedings.

Proceedings:

Analysis for total metals:

As per instructions of the MDS (Microwave Digester System)-Manual, therequired amount of sample is taken in specific acidic media and the volume ismade up to 20 ml. After complete digestion, if necessary, the solution is filteredby Whatman-42 filter paper. Finally, the filtrate is subjected to AAS analysis. InAAS facility, six elements namely copper, lead, zinc, cadmium, nickel andchromium have been analyzed for the present project work.

In addition to the analysis of six metals, mercury analysis of veryfew samples and analysis of hexavalent chromium of some samples have alsobeen carried out as per standard methodologies.

5

Analysis for leachates:

For both buffer leachate and distilled water-extract the analyticalprocedure is identical. 5 grams of sample is taken in a 250 ml. conical flask. Tomake buffer solution the amount of sodium hydroxide solution and glacial aceticacid are dissolved in distilled water in such a way so as to maintain the pH of thesolution to 4.93. About 96 ml. of buffer solution is poured into conical flask forbuffer leachate and same amount of water is poured into the another conical flaskoperating for distilled water treatment, to ensure the volume to 100 ml. Then, boththe solutions are shaken rapidly (Vortex process), pH is adjusted, if necessary,and are subjected to incubation for 72 hours. Again, the solutions are allowed tocool. The instrument TCLP (Toxicity Characteristic Leaching Process) is used forfiltration of leachates, and finally the filtrates are subjected to AAS study.

Analysis for total metals in mango leaf and nearby soil is one of theimportant and significant parts of this project. The comparative amount ofdeposition of hazardous elements in the leaves of trees and in the soil of adjacentarea and away from the industrial sites can provide us the comparative statisticaldata regarding environmental pollution.

Figure-1 is the graphical representation of the total no. of industries , theirtypes and total no. of samples analyzed (numbers 1-10 represents the differenttypes of industries) and Annexure 1 provides the data of annual solid wastegeneration of the industries visited so far.

District - wise industrial samples are tabulated below:

TABLE-1

District No. of industrial samplesKOLKATA 61N-24 PARGANAS 21S-24 PARGANAS 04NADIA 12HOWRAH 18HOOGLY 21MIDNAPORE 11BURDWAN 21

6

ANNEXURE-I

TABLE-2

NAME OF INDUSTRIES TYPE ANNUAL SOLID WASTE GENERATION NO. OFSAMPLES

COLLECTEDM/S. Sing Metal Co. Secondary

Lead -Smelting

Units

30 ton 11

M/S. Kashi Metal Works Do 26.4 ton 3M/S. Azad Metal Works Do 26.4 ton 3

M/S. Samta Metal Industries Do 12 ton 5M/S. Tarak Metal Industries Do 45 ton 4

M/S. Panchawati Metal Works Do 2.4 ton 3M/S. Shivshankar Metal Works Do 12 ton 3

M/S. Joyshambho Metal Co. Do 30 ton 2M/S. Shree Ganesh Metal Works Do 12 ton 1

M/S. Metflow Industries Do ------ 1Road, Lead Smelting Industries Do ----- 1M/S. Lead Stone Energy Ltd. Do 300 ton 4M/S. Raj Finoxides (P) Ltd. DO 14.4 ton 2

M/S. Eastern Metals Do 6 ton 11M/S. Associated Pigments Ltd. Do 2500 ton 5M/S. Bharat Metal Corporation Do 18 ton 1

M/S. Kamala Metachem Do 7.5 - 10 ton 3M/S. Sri Ganesh Industry, Howrah Do 96 ton 1

M/S. Arora Matthey Ltd. MetallurgicalIndustries

15.5 ton 1

M/S. Siel Tizit Limited Do Not available 3M/S. International Ferrites Ltd. Do 54.75 ton 3M/S. Corporate Ispat Alloy Ltd. Do 12331 ton 2

M/S. ISCO, Burnpur Do (319629, 73200, 32505, 24130, 8782,58110, 87887, 6715) ton as per type of

waste like BF Slag, SMS Slag, Fluedust, BFGCP-Sludge, Mill Scale, Fly

Ash, Iron Ore Fines, Refractoriesrespectively

4

M/S. Durgapur Steel Plant Do (687448, 24812, 24000, 341385,29608, 38587, 166759, 50022, 8906)ton for the types of samples like BF

Slag, BF Flue Dust, BF Sludge, BOFSlag, Mill Scale, Fly Ash, Cinder,

Waste Refractories etc.

6

M/S. Alloy Steel Plant Do (1800, 6.96, 5136, 1344, 150, 7992)ton for the types of samples like

Refractory Bricks, Grinding Dust,Mill Scale, Bag Filter Dust, Pickling

Sludge, EAF Slag respectively

8

M/S. Tata Metaliks Do 1533 ton 2M/S. Stone India Limited Engineering

Units2 kg 1

M/S Ichapur, Rifle Factory Do 250 kg 1M/S. Siemens Metering Ltd. Do 3.6 ton 1

7

M/S. Mohan Metals Do Not available 1M/S. Nezone Strips Limited Galvanizing

Units54 ton 2

M/S. Unistar Galvanizers &Fabricators

Do 18 ton 1

M/S. Nirmal Wires (P) Limited Do 2.5 ton 2M/S. Patton Electro Limited Do 2 ton 2M/S. Ramswarup Industrial Do 2 ton 1

M/S. Bhusan Ltd. Do 9.6 ton 1M/S. Oxochrome (P) Limited Dichromate

Unit1344 ton 1

M/S. Lords Chemicals Do 790 ton 6M/S. Lords Chemicals Do Do 4M/S. Sunchrome Ltd. Do 2.4 ton 5

M/S. Indotan Chemicals Do 821.2 ton 6M/S. Alchrome Industries Do 480 ton 1

M/S. Alchrome Industries (P) Ltd. Do Do 1M/S. Pinto Chemicals Chemical

Industries3 ton 1

M/S. Bata India Ltd. Do 5280 ton 2M/S. Ambika Chemicals & Industrial

CorporationDo 2.6 ton 1

M/S. Exide Ind., Haldia Do 1800 ton 2M/S. Hindustan Heavy Chemicals DO 180 ton 2

M/s. MCCPTA, Haldia Do 131.4 ton 2M/S. Bajaj Chemicals Do 109.5 ton 1

M/S. Exide Ind., Athpur Do 1300 kg 2M/S. Kolmac Chemicals Do 406 kg 1

M/S. Durgapur Chemicals Do 276 ton 1M/S. Syanotex Zinc

ReprocessngUnit

3.25 ton 5

M/S. Sylvan Chemicals Do 1000 kg 1M/S. Pinto Chemicals Do 3000 kg 3M/s. Hica Industries Do ------ 1

M/S. Salts & Chemicals Do 1825 kg 2M/S. Cross Point Chemicals Do 1344 kg 2M/S. Pigments & Chemicals Do 30 ton 1

M/S. Dyechem Process DyeingIndustry

9 ton 1

M/S. G.D. Electroplating Works ElectroplatingUnit

171.6 kg 1

M/S. Wimco Ltd. Others 73 ton 2M/S. Eastern Agency Do ------ 4

TABLE-3NON-INDUSTRIAL SITES TYPE NO. OF SAMPLES COLLECTED

1. (Kolkata Zone) Others 52.(Village Site) Do 6

8

CHAPTER-2

TABLE-4

TYPE OF INDUSTRY: SECONDARY LEAD SMELTING UNITS

Sample No. Source of Sample1 Lead Slag (final disposal)2 Lead Slag (3-rd recycle)3 Waste insulation paper of battery4 Fresh mango leaf collected from the plant situated near the boundary wall5 Metal deposited leaf collected from the same plant situated beside the boundary wall6 Soil sample collected from the underneath mango tree 7 Metal deposited leaf collected from the plant situated beside the pond8 Dump material collected from the bank of the pond nearby9 Lead slag

10 Lead dross and battery scrab11 Wood charcoal

12 Lead dross13 Battery plate14 Bag filter dust15 Lead slag (1-st recycled)16 Lead slag (2-nd recycled)17 Lead slag (2-nd recycled)18 Lead slag (2-nd recycled)

19 Bag filter dust20 Lead slag (1-st recycled)21 Lead slag (2-nd recycled)22 Lead ash from galvanizing industries (raw material)23 Bag filter dust24 Slag (before disposal)25 Lead slag (1-st recycled)26 Bag filter dust27 Slag (2-nd recycled)28 Slag (2-nd recycled)29 Slag (3-rd recycled)30 Bag filter dust31 Lead oxide/Lead-ash32 Mango leaf collected from the large and old plant situated opposite to M/S. Azad Metal33 Soil sample taken from dump outside of M/S. Azad Metal34 Metal deposited leaf collected from the mango plant situated beside the boundary wall of M/S.

Sing Metal35 Soil sample collected from the road side36 Soil sample collected from the bank of the pond nearby37 Lead slag collected from the dump site38 Loose lead dross (rotary)39 Lead slag (rotary)40 Lead dross41 Lead slag (rotary)42 Lead dross

Sample No. Source of Sample43 1-st recycling material at the back side of boundary wall44 2-nd recycling material near old vats45 2-nd recycling material46 1-st recycling material47 1-st recycling material near old vats

9

48 Soil collected from the factory premises49 Lead slag collected from the site where new landfill site was under construction50 Lead slag collected from the site where the existing lead slag will be capped51 Lead ore/concentrate (galena), obtained from M/S. Balmer-Lawrie & Co. Ltd. (Bombay) [raw

material]52 Lead slag from slag pit53 Lead slag (1-st) from lead ash/battery scrap54 Lead dross/battery scrap55 Bag filter dust56 Alloy/refining metal, Pb-ash/battery scrap57 Slag58 Slag from rotary furnace59 Lead Sludge60 Lead slag61 BF dust62 Zinc Sludge63 Zinc Sulphate Sludge64 Slag from secondary lead smelting operation

ANALYTICAL RESULS USING ATOMIC ABSORPTION SPECTROPHOTOMETER OFEACH SAMPLE UNDER THE ABOVE TYPE OF INDUSTRY ARE ENCLOSED

Name of Industry / Source: M/S.SINGH METAL COMPANY.Address:158, PICNIC GARDEN ROAD, KOLKATA-700 039

Sample No. Total metal inthe sample Leachate -1 Leachate -2

1 mg/kg mg/kg mg/L % Leachedout

mg/kg mg/L % Leached out

Copper 51.27 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 70680.00 <0.5 <0.02 ------ 6130.8 306.54 8.67Zinc 2032.3 <0.1 <0.01 ------ 15.0 0.75 0.73Cadmium 10.43 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 36.54 <0.1 <0.01 ------ 2.83 0.14 7.74Chromium 37.96 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S.SINGH METAL COMPANY.Address: 158, PICNIC GARDEN ROAD, KOLKATA-700 039



mg/kg mg/L % Leachedout

Copper 514.2 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 310150.00 <0.5 <0.02 ------ 14024.00 701.2 4.52Zinc 710.10 <0.1 <0.01 ------ 38.8 1.94 5.47Cadmium 13.53 <0.1 <0.01 ------ 5.47 0.27 40.47Nickel 645.9 <0.1 <0.01 ------ 13.86 0.69 2.14Chromium <1.5 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachatet-2: Acetic acid-sodium hydroxide solution

at pH 4.93

10





Copper 12.41 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 29246.00 11.78 0.58 0.04 72.06 3.60 0.24Zinc 85.44 <0.1 <0.01 ------ <0.1 <0.01 ------Cadmium 3072.00 546.00 27.30 17.77 565.2 28.26 18.39Nickel <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Chromium <1.5 <0.6 <0.03 ------ <0.6 <0.03 ------Leachatet-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93



4(L-1)

mg/kg mg/kg mg/L % Leachedout


Copper <0.5 NA NA ------ NA NA ------Lead 549.30 NA NA ------ NA NA ------Zinc 8.35 NA NA ------ NA NA ------Cadmium <0.5 NA NA ------ NA NA ------Nickel <0.6 NA NA ------ NA NA ------Chromium <1.5 NA NA ------ NA NA ------Leachatet-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93(*NA: NOT ANALYSED)



5(L-2)



Copper 9.84 NA NA ------ NA NA ------Lead 3549.7 NA NA ------ NA NA ------Zinc 39.5 NA NA ------ NA NA ------Cadmium 2.77 NA NA ------ NA NA ------Nickel <0.6 NA NA ------ NA NA ------Chromium <1.5 NA NA ------ NA NA ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution


11





Copper 161.00 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 23180.00 13.69 0.68 0.06 6627.8 331.4 28.60Zinc 344.00 <0.1 <0.01 ------ 28.78 1.43 8.36Cadmium 7.67 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 32.76 <0.1 <0.01 ------ <0.1 <0.01 ------Chromium 32.95 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93



7(L-3)



Copper 1.94 NA NA ------ NA NA ------Lead 2019.3 NA NA ------ NA NA ------Zinc 25.9 NA NA ------ NA NA ------Cadmium <0.5 NA NA ------ NA NA ------Nickel <0.6 NA NA ------ NA NA ------Chromium <1.5 NA NA ------ NA NA ------Leachate-1: Distilled water at pH 6 Leachatet-2: Acetic acid-sodium hydroxide solution






Copper 342.15 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 119760.00 51.46 2.57 0.04 8697.00 434.85 7.26Zinc 2508.00 <0.1 <0.01 ------ 20.6 1.03 0.82Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 9.75 <0.1 <0.01 ------ 0.146 0.007 1.49Chromium 76.50 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

12

Name of Industry / Source: M/S.KASHI METAL WORKS.Address: 158, PICNIC GARDEN ROAD, KOLKATA-700 039




Copper 113.6 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 21955.00 <0.5 <0.02 ------ 270.3 13.51 1.23Zinc 233.4 <0.1 <0.01 ------ 18.24 0.91 7.81Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 5.21 <0.1 <0.01 ------ <0.1 <0.01 ------Chromium <1.5 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S.KASHI METAL WORKS.Address:158, PICNIC GARDEN ROAD, KOLKATA-700 039




Copper 3956.8 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 53303.00 32.76 1.63 0.06 38766.00 1938.3 72.7Zinc 73.66 <0.1 <0.01 ------ 11.08 0.55 15.04Cadmium 4.94 <0.1 <0.01 ------ 2.02 0.06 40.97Nickel 386.2 <0.1 <0.01 ------ <0.1 <0.01 ------Chromium <1.5 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S.KASHI METAL WORKS.Address: 158, PICNIC GARDEN ROAD, KOLKATA-700 039




Copper <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 117.8 <0.5 <0.02 ------ 18.2 0.91 15.46Zinc 7.1 <0.1 <0.01 ------ <0.1 <0.01 ------Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel <0.6 <0.1 <0.01 ------ <0.1 <0.01 ------Chromium <1.5 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

13

Name of Industry / Source: M/S.AZAD METAL WORKS.Address: 158, PICNIC GARDEN ROAD, KOLKATA-700 039




Copper 1794.7 <0.1 <0.01 ------ <0.1 <0.01 -----Lead 532990.00 <0.5 <0.02 ------ 8663.00 433.15 1.62Zinc 64.5 <0.1 <0.01 ------ 1.2 0.06 1.86Cadmium 10.3 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 196.8 <0.1 <0.01 ------ 24.08 1.20 12.23Chromium <1.5 <0.6 <0.03 ------ <0.6 <0.03 ------Leachatet-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S.AZAD METAL WORKS.Address: 158, PICNIC GARDEN ROAD, KOLKATA-700 039




Copper 6.3 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 664880.00 46.8 2.34 0.007 128200.00 6410.0 19.28Zinc 5.8 <0.1 <0.01 ------ <0.1 <0.01 ------Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel <0.6 <0.1 <0.01 ------ <0.1 <0.01 ------Chromium <1.5 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachatet-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S.SAMTA METAL INDUSTRIES.Address: 76, CANAL CIRCULAR ROAD, KOLKATA-700 054




Copper 247.2 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 134000.00 8.04 0.40 0.006 16.83 0.84 0.01Zinc 120900.00 920.00 46.0 0.76 7500.00 375.0 6.20Cadmium 1208.00 32.62 1.63 2.7 71.6 3.58 5.92Nickel 4.9 <0.1 <0.01 ------ <0.1 <0.03 ------Chromium <1.5 <0.6 <0.03 ------ <0.6 <0.03 ------Leachatet-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

14





Copper 3493.00 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 145600.00 <0.5 <0.02 ------ 1313.4 65.67 0.90Zinc 19090.00 374.2 18.71 1.96 463.2 23.16 2.42Cadmium 1.4 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 159.7 0.62 0.03 0.38 1.42 0.07 0.89Chromium 95.7 <0.6 <0.03 ------ <0.6 <0.03 ------

Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution at pH 4.93





Copper 108700.00 87.6 4.38 0.08 558.2 27.91 0.51Lead 29180.00 328.6 16.43 1.12 496.74 24.83 1.70Zinc 11190.00 363.6 18.18 3.25 373.00 18.65 3.33Cadmium 262.00 5.1 0.25 1.94 15.3 0.76 5.84Nickel 40.6 <0.1 0.001 ------ 6.92 0.34 17.04Chromium 33.0 0.86 0.04 2.60 1.16 0.05 3.5Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93





Copper 518.00 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 65700.00 <0.5 <0.02 ------ 6754.8 337.74 10.28Zinc 1051.00 <0.1 <0.01 ------ 34.7 1.73 3.30Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 385.00 <0.1 <0.01 ------ 11.74 0.58 3.05Chromium 57.8 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

15

Name of Industry / Source: M/S.SAMTA METAL INDUSTRIES.Address:76, CANAL CIRCULAR ROAD, KOLKATA-700 054




Copper 6050.00 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 324900.00 15.5 0.77 0.004 10074.00 503.7 3.10Zinc 2359.00 <0.1 <0.01 ------ 188.2 9.41 7.97Cadmium 22.2 <0.1 <0.01 ------ 2.1 0.10 9.46Nickel 206.9 <0.1 <0.01 ------ 5.94 0.29 2.87Chromium 55.6 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S.TARAK METAL INDUSTRIES.Address:76, CANAL CIRCULAR ROAD, KOLKATA-700 054




Copper 128.2 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 360200.00 51.22 2.56 0.01 99370.00 4968.5 27.58Zinc 7520.00 58.2 2.91 0.77 924.00 46.2 12.28Cadmium 709.00 7.68 0.38 1.08 75.2 3.76 10.60Nickel 8.4 <0.1 <0.01 ------ 2.26 0.11 26.90Chromium 14.4 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S.TARAK METAL INDUSTRIES.Address: 76, CANAL CIRCULAR ROAD, KOLKATA-700 054




Copper 64.4 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 307500.00 4.32 0.21 0.001 42846.00 2142.3 13.93Zinc 1846.00 <0.1 <0.01 ------ 22.1 1.10 1.19Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 70.5 <0.1 <0.01 ------ 10.4 0.52 14.75Chromium 35.4 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

16

Name of Industry / Source: M/S.TARAK METAL INDUSTRIES.Address:76, CANAL CIRCULAR ROAD, KOLKATA-700 054




Copper 351.00 <0.1 <0.01 ------ 18.38 0.91 5.23Lead 53800.00 4.10 0.20 0.007 10542.8 527.14 19.59Zinc 2184.00 <0.1 <0.01 ------ 114.8 5.74 5.25Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 83.6 <0.1 <0.01 ------ 9.42 0.47 11.26Chromium 36.1 <0.6 <0.03 ------ <0.6 <0.03 ------Leachatet-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S.TARAK METAL INDUSTRIES.Address: 76, CANAL CIRCULAR ROAD, KOLKATA-700 054




Copper 986.00 <0.1 <0.01 ------ 11.4 0.57 1.15Lead 347400.00 <0.5 <0.02 ------ 5878.00 293.9 1.69Zinc 1055.00 1.58 0.08 0.14 25.98 1.29 2.46Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 23.1 <0.1 <0.01 ------ <0.1 <0.01 ------Chromium 6.4 <0.6 <0.03 ------ <0.6 <0.03 ------Leachatet-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S.PANCHWATI METAL WORKS.Address: B/C/8C/H/8, JOGODYAN LANE, KOLKATA-700 054




Copper 23.5 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 619400.00 2363.00 118.15 0.38 81850.00 4092.5 13.21Zinc 1698.00 82.8 4.14 4.87 230.4 11.52 13.56Cadmium 536.00 15.08 0.75 2.81 43.86 2.19 8.18Nickel <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Chromium <1.5 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution at pH

4.93

17

Name of Industry / Source: M/S.PANCHWATI METAL WORKS.Address: B/C/8C/H/8, JOGODYAN LANE, KOLKATA-700 054

Sample No. Total metal ionin the sample Leachate -1 Leachate -2



Copper 10230.00 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 51200.00 5.66 0.28 0.01 615.4 30.77 1.20Zinc 8490.00 <0.1 <0.01 ------ 199.8 9.99 2.35Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 -----Nickel 340.3 <0.1 <0.01 ------ 11.02 0.55 3.23Chromium 124.00 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. PANCHWATI METAL WORKS.Address: B/C/8C/H/8, JOGODYAN LANE, KOLKATA-700 054




Copper 305.02 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 323000.00 3645.00 182.25 1.12 4420.00 221.0 1.36Zinc 264.00 7.8 0.39 2.95 13.3 0.66 5.03Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 29.3 2.5 0.12 8.53 2.9 0.14 9.89Chromium 11.1 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. SHIVSHANKAR METAL WORKS.Address: 158, PICNIC GARDEN ROAD, KOLKATA-700 039




Copper 15.6 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 173000.00 10.97 0.54 0.006 10080.00 504.00 5.82Zinc 1067.00 5.08 0.25 0.47 50.4 2.52 4.72Cadmium 4940.00 227.00 11.35 4.59 325.00 16.25 6.57Nickel <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Chromium <1.5 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

18





Copper 79.6 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 113400.00 <0.5 <0.02 ------ 11247.4 562.37 9.91Zinc 640.00 <0.1 <0.01 ------ 41.92 2.09 6.55Cadmium 14.00 <0.1 <0.01 ------ 2.2 0.11 15.7Nickel 2.3 <0.1 <0.01 ------ <0.1 <0.01 ------Chromium 22.4 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachatet-2: Acetic acid-sodium hydroxide solution

at pH 4.93





Copper 192.7 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 249500.00 <0.5 <0.02 ------ 10867.2 543.36 4.35Zinc 777.00 <0.1 <0.01 ------ 46.98 2.34 6.04Cadmium 2.8 <0.1 <0.01 ------ <0.1 0.01 ------Nickel 6.1 <0.1 <0.01 ------ 0.98 0.04 16.06Chromium 12.3 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. JAYSHAMBHO METAL COMPANY.Address: 158, PICNIC GARDEN ROAD, KOLKATA-700 039




Copper 5840.00 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 166900.00 1618.2 0.80 0.96 2028.4 101.42 1.21Zinc 1905.00 5.58 2.79 0.29 56.00 2.80 2.93Cadmium 6.1 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 216.2 20.04 1.00 9.26 28.76 1.43 13.30Chromium 67.8 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

19

Name of Industry / Source: M/S. JAYSHAMBHO METAL COMPANY.Address: 158, PICNIC GARDEN ROAD, KOLKATA-700 039




Copper 31.6 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 161500.00 179.00 8.95 0.11 22880.00 1144.0 14.16Zinc 2270.00 80.6 4.03 3.55 294.6 14.73 12.97Cadmium 1565.00 38.3 1.91 2.44 165.2 8.26 10.55Nickel <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Chromium <1.5 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachatet-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. SHREE GANESH METAL WORKS.Address: 158, PICNIC GARDEN ROAD, KOLKATA-700 039




Copper 53.5 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 420200.00 20.21 1.01 0.004 5660.00 283.0 1.34Zinc 20.1 <0.1 <0.01 ------ 1.92 0.09 9.55Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 1.9 <0.1 <0.01 ------ 0.96 0.04 50.52Chromium <1.5 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S.METFLOW INDUSTRIES.Address: 158, PICNIC GARDEN ROAD, KOLKATA-700 039


32(L-4)



Copper <0.5 NA NA ------ NA NA ------Lead 328.9 NA NA ------ NA NA ------Zinc 21.7 NA NA ------ NA NA ------Cadmium <0.5 NA NA ------ NA NA ------Nickel 1.8 NA NA ------ NA NA ------Chromium <1.5 NA NA ------ NA NA ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution


20

Name of Industry / Source: M/S. AZAD METAL INDUSTRIES.Address: 158, PICNIC GARDEN ROAD, KOLKATA-700 039




Copper 18.9 NA NA ------ NA NA ------Lead 50.8 NA NA ------ NA NA ------Zinc 80.2 NA NA ------ NA NA ------Cadmium <0.5 NA NA ------ NA NA ------Nickel 43.16 NA NA ------ NA NA ------Chromium 51.8 NA NA ------ NA NA ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. SINGH METAL COMPANY.Address: 158, PICNIC GARDEN ROAD, KOLKATA-700 039


34(L-5)



Copper 4.5 NA NA ------ NA NA ------Lead 3003.1 NA NA ------ NA NA ------Zinc 18.1 NA NA ------ NA NA ------Cadmium <0.5 NA NA ------ NA NA ------Nickel <0.5 NA NA ------ NA NA ------Chromium <1.5 NA NA ------ NA NA ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: ROAD, LEAD INDUSTRIES.Address: 158, PICNIC GARDEN ROAD, KOLKATA-700 039




Copper 663.2 NA NA ------ NA NA ------Lead 26575.00 NA NA ------ NA NA ------Zinc 652.4 NA NA ------ NA NA ------Cadmium <0.5 NA NA ------ NA NA ------Nickel 31.00 NA NA ------ NA NA ------Chromium 63.6 NA NA ------ NA NA ------Leachatet-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

21











Copper 63.5 NA NA ------ NA NA ------Lead 91580.00 NA NA ------ NA NA ------Zinc 1862.5 NA NA ------ NA NA ------Cadmium 23.8 NA NA ------ NA NA ------Nickel 111.2 NA NA ------ NA NA ------Chromium 73.3 NA NA ------ NA NA ------Leachatet-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution


Name of Industry / Source: M/S. LEAD- STONE ENERGY LIMITEDAddress: NH-2, DELHI ROAD, RAJHAT, HOOGLY




Copper 19090.00 59.28 2.96 0.31 167.2 8.36 0.87Lead 10200.00 <0.5 <0.02 ------ 48.08 2.40 0.47Zinc 16220.00 0.64 0.03 0.003 408.00 26.5 2.51Cadmium 474.00 0.26 0.01 0.05 17.1 0.85 3.60Nickel 425.00 <0.1 <0.01 ------ 15.18 0.75 3.57Chromium 71.9 <0.6 0.03 ------ 1.38 0.06 1.91Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

22





Copper 6040.00 <0.1 <0.01 ------ 3.86 0.19 0.06Lead 33700.00 <0.5 <0.02 ------ 170.48 8.51 0.50Zinc 976.00 <0.1 <0.01 ------ 42.88 2.20 4.39Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 760.00 2.28 0.11 0.3 103.4 5.17 13.60Chromium 1969.00 <0.6 0.03 ------ <0.6 0.03 ------Leachate-1: Distilled water at pH 6 Leachatet-2: Acetic acid-sodium hydroxide solution

at pH 4.93





Copper 3781.00 <0.1 <0.01 ------ 0.38 0.019 0.01Lead 460200.00 <0.5 <0.02 ------ 22868.00 1157 4.96Zinc 2810.00 0.38 0.019 0.012 992.00 55.7 35.30Cadmium 120900.00 1146.00 57.3 0.94 16100.00 805.0 13.31Nickel 228.4 <0.5 <0.02 ------ 10.22 0.51 4.47Chromium <1.5 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. RAJ FINOXIDE (P) LIMITEDAddress: 75, GANESH CHANDRA AVENUE, 1st FLOOR, KOLKATA-700 013.




Copper 4812.00 <0.1 <0.01 ------ 1.04 0.05 0.02Lead 16412.00 <0.5 <0.02 ------ <0.5 <0.02 ------Zinc 905.00 <0.1 <0.01 ------ 13.12 0.71 1.44Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 44.6 <0.1 <0.01 ------ <0.1 <0.01 ------Chromium 298.3 0.76 0.038 0.25 1.12 0.056 0.37Leachatet-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

23

Name of Industry / Source: M/S. RAJ FINOXIDE (P) LIMITEDAddress: 75, GANESH CHANDRA AVENUE, 1st FLOOR, KOLKATA-700 013.




Copper 3910.00 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 423700.00 <1.5 <0.02 ------ 22864.00 1143.2 5.39Zinc 184.7 <0.1 <0.01 ------ 10.22 0.57 5.53Cadmium 100.9 <0.1 <0.01 ------ 2.48 0.12 2.45Nickel 19.9 <0.1 <0.01 ------ <0.1 <0.01 ------Chromium 12.6 <0.6 <0.03 ------ <0.6 <0.03 ------Leachatet-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. EASTERN METAL LIMITED.Address: VILL.-KHAMAR, P.O.-BISHNUPUR, P.S.-RAJARHAT, 24-PARGANA (N)




Copper 62.53 1.82 0.09 2.91 3.64 0.18 5.82Lead 188520.00 7897.4 394.87 4.18 12920.8 646.04 6.85Zinc 1648.00 17.65 0.88 1.08 33.38 1.66 2.02Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 24.13 <0.1 <0.01 ------ 11.16 0.55 46.24Chromium 85.89 <0.6 <0.03 ------ 6.80 0.34 7.91Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93



44 mg/kg mg/kg mg/L % Leached out mg/kg mg/L % Leached out

Copper 58.32 <0.1 <0.01 ------ 3.58 0.17 6.13Lead 173980.00 6571.00 328.55 3.77 8365.8 418.29 4.81Zinc 1505.3 2.84 0.14 0.18 10.7 0.53 0.71Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 33.99 <0.1 <0.01 ------ 11.61 0.58 34.15Chromium 68.71 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

24





Copper 110.99 <0.1 <0.01 ------ 3.57 0.17 3.21Lead 165220.00 914.32 45.71 0.55 14578.00 728.9 8.82Zinc 287.51 <0.1 <0.01 ------ 2.67 0.13 0.92Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 19.42 <0.1 <0.01 ------ 12.52 0.62 64.46Chromium <1.5 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93





Copper 2020.1 <0.1 <0.01 ------ 3.74 0.18 0.18Lead 931900.00 8046.00 402.3 0.86 120200.00 6010.00 12.89Zinc 271.70 0.28 0.01 0.10 13.49 0.67 4.96Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 100.98 7.67 0.38 7.59 8.78 0.43 8.69Chromium <1.5 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93





Copper 46.03 <0.1 <0.01 ------ 3.66 0.18 7.95Lead 118160.00 2097.6 104.88 1.77 7621.8 381.09 6.45Zinc 1193.2 5.92 0.29 0.49 31.88 1.59 2.67Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 35.22 2.07 0.10 5.87 9.07 0.45 25.75Chromium 50.02 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

25





Lead 72.19 NA NA ------ NA NA ------

Leachatet-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution at pH 4.93

Name of Industry / Source: M/S.ASSOCIATED PIGMENTS LIMITED.Address: KANAKPUR, PANSKURA, MIDNAPUR




Copper 2318.5 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 166810.00 14.64 0.73 0.008 5847.00 292.35 3.50Zinc 48430.00 <0.1 <0.01 ------ 600.2 30.01 1.23Mercury 1.40 ------ ------ ------ ------ ------ ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93





Copper 38461.00 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 169720.00 77.09 3.85 0.04 5248.00 262.40 3.09Zinc 20603.00 <0.1 <0.01 ------ 196.98 9.84 0.95Mercury 1.03 ------ ------ ------ ------ ------ ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93





Copper 5259.5 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 121540.00 70.07 3.50 0.05 1336.00 66.80 1.09Zinc 24530.00 558.4 27.92 2.27 5070.6 253.53 20.67Mercury 1.46 ------ ------ ------ ------ ------ ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

26

Name of Industry / Source: M/S. EASTERN METALAddress: VILL.-KHAMAR, P.O.-BISHNUPUR, P.S.-RAJARHAT, DISTT.-24-PARGANA (N)




Copper 362.56 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 230610.00 54.73 2.73 0.02 13930.00 696.50 6.04Zinc 942.5 <0.1 <0.01 ------ <0.1 <0.01 ------Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 58.13 0.85 0.04 1.46 6.97 0.34 12.00Chromium 27.83 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachatet-2: Acetic acid-sodium hydroxide solution

at pH 4.93





Copper 305.40 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 193720.00 <0.5 <0.02 ------ 21603.2 1080.16 11.15Zinc 339.8 <0.1 <0.01 ------ 41.78 2.08 12.29Cadmium 97.24 <0.1 <0.01 ------ 6.68 0.33 6.86Nickel 9.30 <0.1 <0.01 ------ 0.71 0.03 7.69Chromium <1.5 <0.6 <0.03 ------ <0.6 <0.03 ------Leachatet-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93





Copper 303.06 <0.1 <0.01 ------ 9.99 0.49 3.29Lead 395150.00 188.97 9.44 0.04 23306.4 1165.32 5.89Zinc 59.88 <0.1 <0.01 ------ 20.36 1.01 34.00Cadmium 4.17 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 12.93 <0.1 <0.01 ------ 2.57 0.12 19.92Chromium <1.5 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

27





Copper 30.57 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 341180.00 891.72 44.58 0.26 23696.00 1184.8 6.94Zinc 5464.00 286.14 14.30 5.23 391.32 19.56 7.16Cadmium 1307.7 310.78 15.53 23.76 473.2 23.66 36.18Nickel 4.72 <0.1 <0.01 ------ 0.53 0.02 11.35Chromium 1.80 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93





Copper 28420.00 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 7299.00 <0.5 <0.02 ------ 797.72 7.97 10.92Zinc 217.93 <0.1 <0.01 ------ <0.1 <0.01 ------Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 2809.1 <0.1 <0.01 ------ 5.28 0.26 0.18Chromium <1.5 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. ASSOCIATED PIGMENTS LIMITED.Address: PANSKURA, MIDNAPORE




Copper 3333.00 47.00 2.35 1.41 147.1 7.35 4.41Lead 76190.5 1571.4 78.57 2.06 1904.8 95.24 2.50Zinc 37539.1 1751.8 87.6 4.67 1814.4 90.72 4.83Cadmium 1200.00 102.7 5.14 8.56 128.8 6.5 10.73Nickel 106.1 37.5 1.87 35.4 51.2 2.60 48.3Chromium 70.2 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

28

Name of Industry / Source: M/S.BHARAT METAL CORPORATION.Address: 5 No. RAJKRISHNA KUMAR STREET, BELUR, HOWRAH




Copper 7078.00 0.35 0.02 0.005 477.8 23.9 6.75Lead 85210.00 353.5 17.67 0.42 380.6 19.03 0.45Zinc 5589.00 74.78 3.74 1.34 905.00 45.25 16.2Cadmium 3.63 1.21 0.06 33.4 1.57 0.08 43.4

Nickel 232.1 44.6 2.23 19.2 71.2 3.56 30.68Chromium 87.00 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. ASSOCIATED PIGMENTS.Address: PANSKURA, MIDNAPUR




Copper 2642.00 <0.1 <0.01 ------ 1.67 0.08 0.06Lead 108208.00 31.9 1.6 0.03 3957.8 197.9 3.7Zinc 53500.00 11.00 0.55 0.02 15.6 0.78 0.03Cadmium 26.0 <0.10 <0.01 ------ 2.4 0.12 9.2


at pH 4.93

Name of Industry / Source: M/S. KAMALA METACHEM (ROAD NEARBY).Address: HOWRAH




Copper 268.6 <0.10 <0.01 ------ <0.10 <0.01 ------Lead 1119.4 15.3 0.76 1.37 184.7 9.23 16.5Zinc 6200.00 10.00 0.50 0.16 1740.00 87.00 28.1Cadmium <0.50 <0.10 <0.01 ------ <0.10 <0.01 ------

Nickel 39.4 <0.5 <0.02 ------ 12.2 0.61 30.96Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

29

Name of Industry / Source: M/S. KAMALA METACHEM.Address: HOWRAH





Nickel <1.0 <0.50 <0.02 ------ <0.50 <0.02 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. KAMALA METACHEM.Address: HOWRAH




Copper 34056.00 <0.10 <0.01 ------ 13660. 683.00 40.1Lead 119403.00 22.98 1.15 0.02 8654.4 432.7 7.25Zinc 140000.00 130.6 6.53 0.09 39400.00 1970.00 28.2Cadmium 39.00 8.00 0.40 20.5 12.4 0.62 31.8

Nickel 1110.00 0.60 0.03 0.05 14.4 0.72 1.29Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S.SHREE GANESH INDUSTRIES.Address: HOWRAH




Copper 4858.00 <0.10 <0.01 ------ 30.4 1.52 0.63Lead 57089.5 116.2 5.80 0.20 580.5 29.0 1.02Zinc 6800.00 68.8 3.44 1.01 3200.00 160.00 47.1Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------

Nickel 318.5 2.80 0.14 0.90 6.00 0.30 1.88Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. LEAD STONE ENERGY LIMITED.Address: RAJHAT, POLBA, HOOGHLY




Lead 40330.00 5.8 0.29 0.014 93.6 4.68 0.23

30


Elemental status of the samples collected according to industrial category/areaTABLE-5

(Secondary Lead Smelting Units)Total Metal (mg/kg)

Serial No Copper Lead Zinc Cadmium Nickel Chromium1-13,26-37Picnic GardenRoad, Kol.-39

Lv = <0.5Hv = 5840(29,LP-BDL)

Lv = 50.8Hv = 664880(13, LP-19.3)

Lv = 5.8Hv = 2508(8,LP-15)

Lv = <0.5Hv = 4940(26,LP-6.5)

Lv = <0.6Hv = 645.9(2,LP-2.1)

Lv = <1.5Hv = 76.5(8,LP-BDL)

14-22C. CircularRoad, Kol.-54

Lv = 64.4Hv = 108700(SW-16*,LP-0.51)

Lv = 29180Hv = 360200(SW-19,LP-27.6)

Lv = 1051Hv = 120900(SW-14,LP-6.2)

Lv = <0.5Hv = 1208(SW-14,LP-5.9)

Lv = 4.9Hv = 385(SW-17**,LP-3.0)

Lv = <1.5Hv = 95.7(SW-15,LP-BDL)

23-25JogodyanLane, Kol.-54

Lv = 23.5Hv = 10230(24,LP-BDL)

Lv = 51200Hv = 619400(23,LP-13.2))

Lv = 264Hv = 8490(24,LP-2.3)

Lv = <0.5Hv = 536(23,LP-8.2)

Lv = <0.6Hv = 340.3(24,LP-3.2)

Lv = <1.5Hv = 124(24,LP-BDL)

38 - 40Delhi Road,Rajhat,Hoogly

Lv = 3781Hv = 19090(38,LP-0.9)

Lv = 10200Hv = 460200(40,LP-4.7)

Lv = 976Hv = 16220(38,LP-2.5)

Lv = <0.5Hv = 120900(40,LP-13.3)

Lv = 228.4Hv =760(39,LP-13.6)

Lv = <1.5Hv = 1969(39,LP-BDL)

41 - 42G.C. Avenue,Kol.-13

Lv = 3910Hv = 4812(41,LP-0.02)

Lv = 16412Hv = 423700(42,LP-5.4)

Lv = 184.7Hv = 905(41,LP-1.4)

Lv = <0.5Hv = 100.9(42,LP-2.4)

Lv = 19.9Hv = 44.6(41,LP-BDL)

Lv = 12.6Hv = 298.3(41,LP-0.4)

43 - 48,52- 56Khamar, 24-Parg. (N)

Lv = 30.6Hv = 28420(56,LP-BDL)

Lv = 72.2Hv = 931900(46,LP-12.9)

Lv = 59.88Hv = 5464(55,LP-7.2)

Lv = <0.5Hv = 1307.7(55,LP-36.2)

Lv = 4.72Hv = 2809.1(56,LP-0.2)

Lv = <1.5Hv = 85.9(43,LP-7.9)

49 –51, 57, 59Panskura,Midnapore

Lv = 2318.5Hv = 38461(50,LP-BDL)

Lv = 121540Hv = 169720(50,LP-3.5)

Lv = 20603Hv = 48430(49,LP-1.2)

Lv = NAHv = 1200(57, LP-10.73)

Lv = NAHv =106.1(57,LP-48.3)

Lv = NAHv =70.2(57,LP-BDL)

58,Belur,Howrah

7078(LP - 6.75)

85210(LP – 0.45

5589(LP – 16.2)

3.63(LP – 43.4)

232.1(LP – 30.68)

87(LP –BDL)

60, 61, 62, 63(Howrah)

Lv = 37.9Hv = 34056(62, LP–40.1)

Lv = 1119.4Hv = 119403(62, LP-7.2)

Lv = 6200Hv = 187000(61, LP – 62)

Lv = <0.5Hv = 81.2(61, LP-67.7)

Lv = <1.0Hv = 1110(62, LP-1.3)

Lv = NAHv = NA

64,Rajhat,Hooghly

NA 40330(LP-0.23)

NA NA NA NA

Lv – Lowest value, Hv – Highest value, NA – Not analysed, LP – Leaching Percentage using sodiumhydroxide-acetic acid buffer solution at pH 4.93.

Findings:

A) No. of industries under this category: 16 (Sixteen).B) No. of samples analyzed: 64 (Sixty four).

31

Some of the industries in this category are located in Picnic Garden Road(Kolkata-39), Canal Circular Road (Kolkata-54) & Jogodyan Lane (Kolkata-54). Remaining samples consists of four other districts of West Bengal namelyHooghly, 24-Pargana (N), Howrah and Midnapore.. Three of the industrieshave been visited twice and after analyzing the collected samples minorimprovement have been noticed. Total lead deposition near secondary leadsmelting units almost reached alarming stage as compared to other sources.Surface soil is also contaminated significantly in the same premises. Only forthree samples, measurement of mercury have been executed but found noguilty amount.

The following table provides the statistical data of some lead smelting units.TABLE-6

Serialno

Elements Total metal in thesample(mg/kg)

Leachingpercentage inbuffer solution

Annual total wastegeneration of theindustry

Annual amountleached in buffer

1 Pb 70680 8.67 2.12 ton 183.83 kgZn 2032.3 0.73 60.96 kg 0.44 kgNi 36.54 7.74 1.09 kg 0.08 kg

8 Pb 119760 7.26 3.6 ton 260.83 kgZn 2508 0.82 75.24 kg 0.61 kgNi 9.75 1.49 0.29 kg 0.004 kg

9 Pb 21955 1.23 579.61 kg 7.12Zn 233.4 7.81 6.16 kg 0.48

37 Pb 91580 NA 2.74 ton NAZn 1862.5 NA 55.87 kg NA

39 Cu 6040 0.06 1.8 ton 1.08 kgPb 33700 0.50 10.1 ton 50.50 kgZn 976 4.93 292.8 kg 14.43 kgNi 760 13.60 228 kg 31 kg

41 Cu 4812 0.02 69.29 kg 0.013 kgZn 905 1.44 13.03 kg 0.187 kgCr 298.3 0.37 4.29 kg 0.015 kg

49 Pb 166810 3.50 417.02 ton 14.60 tonZn 48430 1.23 121.07 ton 1.48 tonHg 1.4 NA 2.5 kg NA

50 Pb 169720 3.09 424.3 ton 13.11 tonZn 20603 0.95 51.5 ton 489.3 kgHg 1.03 NA 2.57 kg NA

52 Pb 230610 6.04 1.38 ton 83.57 kgNi 58.13 12 0.35 kg 0.04 kg

57 Cu 3333 4.41 8.33 ton 367.44 kgPb 76190.5 2.50 190.47 ton 4.76 tonZn 37539.1 4.83 93.84 ton 4.53 tonCd 1200 10.73 3.00 ton 321.9 kgNi 106.1 48.3 265 kg 128 kg

58 Cu 7078 6.75 127.4 kg 8.59 kgPb 85210 0.45 1.53 ton 6.89 kgZn 5589 16.2 100.6 kg 16.29 kgCd 3.63 43.4 0.06 kg 0.02 kgNi 232.1 30.68 4.17 kg 1.28 kg

59 Cu 2642 0.06 6.60 ton 3.96 kgPb 108208 3.7 270.52 ton 100.09 kgZn 53500 0.03 133.75 ton 81.15 kgCd 26 9.2 65 kg 5.98 kgNi 13.1 23.35 32.75 kg 7.64 kg

60 Pb 1119.4 16.5 11.19 kg 1.84 kgZn 6200 28.1 62 kg 17.42 kgNi 39.4 30.96 0.39 kg 0.12 kg

61 Cu 37.9 32.72 0.38 kg 0.12 kg

32

Pb 12313.4 7.71 123.13 kg 9.49 kgZn 187000 62.6 1.87 ton 1.17 tonCd 81.2 67.7 0.81 kg 0.55 kg

62 Cu 34056 40.1 340.56 kg 136.56 kgPb 119403 7.25 1.19 ton 86.56 kgZn 140000 28.2 1.40 ton 394.8 kgCd 39 31.8 0.39 kg 0.12 kgNi 1110 1.29 11.1 kg 0.14 kg

63 Cu 4858 0.63 466.36 kg 2.93 kgPb 57089.5 1.02 5.48 ton 55.89 kgZn 6800 47.1 652.8 kg 307.46 kgNi 318.5 1.88 30.57 kg 0.57 kg

64 Pb 40330 0.23 12.09 ton 27.82 kg

Figure-2 clearly shows that the highest value of lead content of a sample inthe Picnic Garden Road area whereas other elemental exposures are bellow theirrespective danger levels. It’s leaching percentage is 19.3 which is really alarming.Though far more than this percentage are also found in several samples in thisarea, but their values of total metal contents found lower than the indicated value.

For other three areas of Kolkata namely, Canal Circular Road area,Jogodyan Lane area and Ganesh Chandra Avenue area where severalsecondary lead smelting units are running, the elemental status can be estimatedby their graphical representations as Figure3 - Figure5 respectively.

Samples having highest values obtained from analytical results have beenrepresented in figures. But if we go through the average leaching percentage oftoxic elements in each type of industry, graphs plotted later are not adequate. Inthis regard, other tables where the actual leaching status (buffer leaching) of thesolid wastes of investigating industries and municipalities have been put forwardare more meaningful.

33

CHAPTER-3

TYPE OF INDUSTRY: METALLURGICAL INDUSTRIES

TABLE-7

Serial No Source of Sample65 ETP-Sludge66 ETP-Sludge67 ETP-Sludge from polythene drum (black colour)68 ETP-Sludge from sludge pit69 Process Waste + ETP-Sludge70 ETP-Sludge71 EAF Slag72 Dust from APC of EAF73 BF Flue Dust74 BF-GCP Sludge75 Flue dust from BF of THF76 BF-GCP Sludge77 BF Flue dust78 BOF GCP79 EAF Bag filter dust80 EAF slag from SMS81 Mill scale of Blooming & Billet Mill82 Grinding dust of conditioning section83 Pickling sludge from plate & sheet mill84 Solidified EAF Dust (5:1:1)85 Solidified EAF Dust (6:1:1)86 Sludge from gas clearing plant87 Dust from cyclone dust collector88 ETP-Sludge89 Blast furnace flue dust90 Blast furnace flue dust91 BOF Slag92 Bag filter dust collected from EAF93 BF Slag

ANALYTICAL RESULS USING A.A.S. ARE ENCLOSED:

Name of Industry / Source: M/S. ARORA MATTHEY LIMITED.Address: 166, N. S. C. BOSE ROAD, REGENT PARK, KOLKATA-700 040

Serial No. Total metal inthe sample Leachate -1 Leachate -2



Copper 133100.00 <0.1 <0.01 ------ <0.1 <0.01 ------Zinc 136300.00 63.8 3.19 0.04 3208.00 160.4 2.35Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

34

Name of Industry / Source: M/S. SIEL TIZIT LIMITED.Address: 58, MOTILAL GUPTA ROAD, KOLKATA-700 008




Copper <0.5 ND ND --- ND ND ---Lead 85.7 ND ND --- ND ND ---Zinc 270.24 ND ND --- ND ND ---Cadmium <0.5 ND ND --- ND ND ---Nickel 156.35 ND ND --- ND ND ---Chromium 124.38 ND ND --- ND ND ---Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93*ND: Leachate analysis was not carried out due to inadequate amount of sample.





Copper 16.38 <0.1 <0.01 ------ 1.5 0.07 9.15Lead 30.34 <0.5 <0.02 ------ 7.67 0.38 25.28Zinc 310.3 <0.1 <0.01 ------ 0.29 0.015 0.09Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 38.10 <0.1 <0.01 ------ <0.1 <0.01 ------Chromium 92.47 <0.6 <0.03 ------ 4.31 0.21 4.66Cr6+ BDL ----- ----- ------ ----- ----- -----Leachatet-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93





Copper 12.02 <0.1 <0.01 ------ 1.76 0.08 14.64Lead 114.70 <0.5 <0.02 ------ 18.43 0.92 16.06Zinc 240.85 <0.1 <0.01 ------ <0.1 <0.01 ------Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 38.50 <0.1 <0.01 ------ <0.1 <0.01 ------Chromium 87.33 <0.6 <0.03 ------ 2.70 0.13 3.09Cr6+ BDL ----- ----- ------ ----- ----- -----Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

35

Name of Industry / Source: M/S. INTERNATIONAL FERRITES LTD.Address: KALYANI, NADIA




Zinc 2936.00 <0.1 <0.01 ------ <0.1 <0.01 ------


Name of Industry / Source: M/S. INTERNATIONAL FERRITES LTD.Address: KALYANI, NADIA




Zinc 6728.00 <0.1 <0.01 ------ <0.1 <0.01 ------


Name of Industry / Source: M/S.CORPORATE ISPAT ALLOY LIMITED.Address: DURGAPUR, BURDWAN

Sample No. A B C D71 mg/kg mg/l mg/l mg/lCopper 7.00 <0.01 <0.01 <0.01Lead 13.00 <0.02 <0.021 0.015Zinc 8.1 0.03 0.12 0.23Cadmium <0.5 <0.01 <0.01 <0.01Nickel 17.94 <0.02 0.51 0.55Chromium 3700.00 <0.03 <0.03 0.51

A: Total metal ionin the sample

B: Leachate 1, DistilledWater at pH 6

C: Leachate 2,CH3COOH-NaOH soln. atpH 4.93

D: Leachate3,CH3COOH soln. atpH 2.88

Name of Industry / Source: M/S.CORPORATE ISPAT ALLOY LIMITED.Address: DURGAPUR, BURDWAN

Sample No. A B C D72 mg/kg mg/l mg/l mg/lCopper 107.3 <0.01 0.07 0.20Lead 4.25 <0.02 0.03 0.07Zinc 2661.3 0.16 26.11 68.9Cadmium 2.98 <0.01 0.06 0.095Nickel 646.2 <0.02 0.55 0.90Chromium 5737.00 290.00 290.00 290.00





36

Name of Industry / Source: M/S.IISCO.Address: BURNPUR, BURDWAN

Sample No. A B C D73 mg/kg mg/l mg/l mg/lCopper 25.7 <0.01 <0.01 <0.01Lead 93.00 <0.02 <0.02 <0.02Zinc 86.9 0.08 0.39 1.00Cadmium <0.5 <0.01 <0.01 <0.01Nickel 18.5 <0.02 <0.02 <0.02Chromium 40.6 <0.03 <0.03 <0.03






Sample No. A B C D74 mg/kg mg/l mg/l mg/lCopper 31.5 <0.01 <0.01 <0.01Lead 875.00 <0.02 <0.02 <0.02Zinc 2129.3 0.08 0.33 2.75Cadmium 4.61 <0.01 <0.01 <0.01Nickel 12.6 <0.02 <0.02 <0.02Chromium 77.00 <0.03 <0.03 <0.03






Sample No. A B C D75 mg/kg mg/l mg/l mg/lCopper 96.4 <0.01 0.04 <0.01Lead 140.2 <0.02 0.021 0.03Zinc 498.5 0.03 0.56 1.00Cadmium <0.5 <0.01 <0.01 <0.01Nickel 49.8 <0.02 <0.02 0.04Chromium 105.6 <0.03 <0.03 <0.03





Name of Industry / Source: M/S.DURGAPUR STEEL PLANT.Address: DURGAPUR, BURDWAN

Sample No. A B C D76 mg/kg mg/l mg/l mg/lCopper 31.2 <0.01 <0.01 <0.01Lead 6140.00 <0.02 0.15 4.2Zinc 7599.00 0.09 1.48 21.4Cadmium 34.00 <0.01 <0.01 0.03Nickel 6.97 <0.02 <0.02 0.03

37

Chromium 14.3 <0.03 <0.03 <0.03A: Total metal ionin the sample





Sample No. A B C D77 mg/kg mg/l mg/l mg/lCopper 19.3 <0.01 <0.01 <0.01Lead 54.3 <0.02 <0.02 <0.02Zinc 35.8 0.06 0.34 1.05Cadmium <0.5 <0.01 <0.01 <0.01Nickel 4.35 <0.02 <0.02 <0.02Chromium 39.00 <0.03 <0.03 <0.03






Sample No. A B C D78 mg/kg mg/l mg/l mg/lCopper 38.3 <0.01 <0.01 <0.01Lead <2.3 <0.02 <0.02 <0.02Zinc 72.1 0.02 0.03 0.1Cadmium <0.5 <0.01 <0.01 <0.01Nickel 4.28 <0.02 <0.02 <0.02Chromium 33.5 <0.03 <0.03 <0.03





Name of Industry / Source: M/S. ALLOY STEEL PLANT.Address: DURGAPUR, BURDWAN

Sample No. A B C D79 mg/kg mg/l mg/l mg/lCopper 377.7 <0.01 0.13 0.40Lead 26250.00 0.54 246.53 643.1Zinc 32631.3 0.41 33.21 662.8Cadmium 9.04 <0.01 0.11 0.16Nickel 383.3 <0.02 0.09 0.20Chromium 1128.00 0.44 0.53 0.53





38


Sample No. A B C D80 mg/kg mg/l mg/l mg/lCopper 30.6 <0.01 <0.01 <0.01Lead <2.3 <0.02 <0.02 <0.02Zinc 32.4 0.02 0.09 0.09Cadmium <0.5 <0.01 <0.01 <0.01Nickel 9.1 <0.02 0.06 0.10Chromium 4140.00 <0.03 <0.03 0.10






Sample No. A B C D81 mg/kg mg/l mg/l mg/lCopper 184.9 <0.01 <0.01 <0.01Lead <2.3 <0.02 <0.02 <0.02Zinc 31.2 0.05 0.18 0.30Cadmium <0.5 <0.01 <0.01 <0.01Nickel 961.00 <0.02 6.94 11.6Chromium 3293.4 <0.03 <0.03 1.60






Sample No. A B C D82 mg/kg mg/l mg/l mg/lCopper 212.2 <0.01 <0.01 <0.01Lead <2.3 <0.02 <0.02 <0.02Zinc 32.00 0.03 0.12 0.23Cadmium <0.5 <0.01 <0.01 <0.01Nickel 2020.00 <0.02 2.45 2.45Chromium 278.8 <0.03 <0.03 <0.03






Sample No. A B C D83 mg/kg mg/l mg/l mg/lCopper 177.5 <0.01 <0.01 <0.01Lead 7.6 <0.02 <0.02 <0.02Zinc 94.9 0.03 0.06 0.10Cadmium <0.5 <0.01 <0.01 <0.01Nickel 7503.00 0.03 1.09 1.70

39

Chromium 8790.00 0.23 0.26 0.26A: Total metal ionin the sample




Name of Industry / Source: M/S.ALLOY STEEL PLANT.Address: DURGAPUR, BURDWAN

Sample No Total metal ionin the sample Leachate -1 Leachate -2



Lead 32029.00 50.43 2.52 0.16 4741.6 237.1 14.81Chromium 1479.00 <0.6 <0.03 ------ 30.00 1.50 2.03Cr6+ was found BDL in aqueous extract of this sampleLeachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93


Sample No Total metalion in thesample

Leachate -1 Leachate -2



Lead 29341.00 27.00 1.35 0.09 2374.2 118.71 8.09Chromium 1406.00 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachatet-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S.TATA METALIKS.Address: KHARAGPUR, MIDNAPUR






Nickel <1.0 <0.50 <0.02 ------ <0.50 <0.02 ------Arsenic BDL ------ BDL ------ ------ BDL ------Cr6+ BDL ------ BDL ------ ------ BDL ------Chromium <1.50 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

40

Name of Industry / Source: M/S. TATA METALIKS.Address: KHARAGPUR, MIDNAPUR






Nickel 5.8 <0.5 <0.02 ------ 0.06 0.03 10.3Arsenic BDL ------ BDL ------ ------ BDL ------Cr6+ BDL ------ BDL ------ ------ BDL ------Chromium 34.00 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S.INTERNATIONAL FERRITES LIMITED.Address: KALYANI, NADIA





Copper 120.4 <0.10 <0.01 ------ 1.4 0.07 1.16Lead 375.0 17.87 0.89 4.76 60.00 3.00 16.00Zinc 12200.00 45.6 2.28 0.37 1260.00 63.00 1032Cadmium <0.5 <0.10 <0.01 ------ <0.1 <0.01 ------

Nickel 211.3 <0.50 <0.02 ------ <0.50 <0.02 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. DURGAPUR STEEL PLANT.Address: DURGAPUR, BURDWAN





Copper <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 800.6 <0.5 <0.02 ------ 136.3 6.81 17.02Zinc 319.3 23.2 1.16 7.27 34.8 1.74 10.9Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------

Nickel 11.9 <0.1 <0.01 ------ <0.1 <0.01 ------Chromium 8.4 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

41






Copper 17.0 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 383.4 <0.5 <0.02 ------ 98.96 4.95 25.81Zinc 311.1 2.42 0.12 0.78 4.84 0.24 1.56Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------


at pH 4.93

Name of Industry / Source: M/S. DURGAPUR STEEL PLANT.Address: DURGAPUR, BURDWAN





Copper <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 124.4 <0.5 <0.02 ------ 49.74 2.49 39.98Zinc 259.5 <0.1 <0.01 ------ <0.1 <0.01 ------Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------

Nickel <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Chromium 297.9 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93






Copper 380.00 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 13989.6 <0.5 <0.02 ------ 36.3 1.81 0.26Zinc 24200.00 <0.1 <0.01 ------ 4560.6 228.00 18.84Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------

Nickel 666.3 <0.1 <0.01 ------ 4.6 0.23 0.69Chromium 2535.5 60.00 0.30 0.24 12.6 0.63 0.50

42


43








at pH 4.93

Elemental status of the samples collected according to industrial category/areaTABLE-8

(Metallurgical Units)Total Metal (mg/kg)

Sample No Copper Lead Zinc Cadmium Nickel Chromium65N.S.C.BoseRoad, RegentPark, Kol.-39

133100,LP-BDL

NA 136300 ,LP-2.3

NA NA NA

66, 67, 68M.L.G. Road,Kol.-08

Lv = <0.5Hv = 16.4(67,LP-9.1)

Lv = 30.34Hv = 114.7(68,LP-16.0)

Lv = 240.8Hv = 310.3(67,LP-0.09)

<0.5LP-BDL

Lv = 38.1Hv = 156.3(66,LP-NA)

Lv = 87.3Hv = 124.4(66,LP-NA)

69, 70, 88Kalyani, Nadia

120.4(52, LP -1.16)

375 Lv = 2936Hv = 12200(88,LP-10.32)

<0.5 211.3(88, LP –BDL)

NA

71- 75, 90Burnpur-Burdwan

Lv = 7.0Hv = 107(sampleno.-72)

Lv = 4.25Hv = 875(sample no.-74)

Lv = 8.1Hv = 2661(sample no.-72)

Lv = <0.5Hv = 4.6(sample no.-74)

Lv = 12.6Hv = 646.2(sample no.-72)

Lv = 38.4Hv = 5737(sample no.-72)

76–85,89 91–93,Durgapur,Burdwan

Lv = <0.5Hv = 380(92, LP-BDL)

Lv = <2.3Hv = 32029(84, LP-14.8)

Lv = 31.2Hv = 24200(92, LP-18.8)

Lv = <0.5Hv = 34(sample no.-76)

Lv = <0.5Hv = 7503(sample no.-83)

Lv = 14.3Hv = 8790(sample no.-83)

86, 87Kharagpur,Midnapore

Lv = 19.1Hv = 19.9(87, LP –8.39)

Lv = 235.1Hv = 1119.4 (86, LP –4.95)

Lv = 124Hv = 1010 (86, LP –2.27)

Lv = <0.5Hv = <0.5

Lv = <1.0Hv =5.8(87, LP –10.3)

Lv = <1.5Hv = 34(87, LP –BDL)

Lv – Lowest value, Hv – Highest value, NA – Not analyzed, LP – Leaching Percentage using sodiumhydroxide-acetic acid buffer solution at pH 4.93.

FINDINGS:

A) No. of industries under this category: 8 (Eight).B) No. of samples analyzed: 29 (Twenty nine).

44

Two of the industries in this category are in Kolkata. One is in the RegentPark area, Kolkata-40 and the other is in Motilal Gupta Road, Kolkata-08consisting sample numbers – 65, 66, 67 & 68. Other samples are collectedfrom Kalyani (Nadia), Burnpur-Durgapur (Burdwan) and Kharagpur(Midnapore) with sample numbers 69 - 93. The first one bearing some highamounts of copper and zinc with 13.31% and 13.63% respectively. Howevercopper-leaching percentage of this sample is BDL while zinc-leachingpercentage is found 2.3%. The next three samples are from same industrywhich have been visited twice and found no significantly high amount ofelements under investigation of their total metal contents in their respectiveETP-sludge.

Following statistical data provides the amount of leachates of the solid wastes generated annually by some mettallurgical units.

TABLE- 9

Samplenumber

Elements Total metal inthe sample(mg/kg)




65 Cu 133100 BDL 2.06 ton ------Zn 136300 2.35 2.11 ton 49.64 kg

66 Zn 270.24 NA ------Ni 156.35 NA ------Cr 124.38 NA

DATA NOTAVAILABLE

------67 Cu 16.38 9.15 ------

Pb 30.34 25.28 ------Zn 310.3 0.09 ------Cr 92.47 4.66

DATA NOTAVAILABLE

------68 Cu 12.02 14.64 ------

Pb 114.70 16.06 ------Cr 87.33 3.09

DATA NOTAVAILABLE

------69 Zn 2936 BDL 160.74 kg -------70 Zn 6728 BDL 368.36 kg -------84 Pb 32029 14.81 3.84 ton 569.14 kg

Cr 1479 2.03 177.48 kg 3.60 kg85 Pb 29341 8.09 3.52 ton 284.76 kg

Cr 1406 BDL 168.72 kg ------86 Pb 1119.4 4.95 1.71 ton 84.94 kg

Zn 1010 2.27 1.54 ton 35.13 kg87 Cu 19.9 8.39 30.5 kg 2.55 kg

Pb 235.1 27.4 360.25 kg 98.7 kgZn 124 35.5 190.09 kg 67.48 kgNi 5.8 10.3 8.89 kg 0.91 kg

88 Cu 120.4 1.16 6.6 kg 0.07 kgPb 375 16 20.53 kg 3.28 kgZn 12200 10.32 667.95 kg 68.93 kg

89 Pb 800.6 17.02 19.86 ton 3.38 tonZn 319.3 10.9 7.92 ton 863.5 kg

90 Pb 383.4 25.81 12.46 ton 3.21 tonZn 311.1 1.56 10.11 ton 157.74 kg

91 Pb 124.4 39.98 42.46 ton 16.97 ton92 Pb 13989.6 0.26 18.8 ton 48.88 kg

Zn 24200 18.84 32.52 ton 6.12 tonNi 666.3 0.69 895.5 kg 6.17 kgCr 2535.5 0.50 3.40 ton 17.03 kg

93 Pb 95.9 16.21 65.92 ton 10.68 tonZn 230 18.87 158.11 ton 29.83 ton

45

CHAPTER-4

TYPE OF INDUSTRY: ENGINEERING UNITS

TABLE-10

Sample No. Source of Sample94 ETP-Sludge95 ETP-Sludge (chrome plating unit)96 ETP-Sludge collected from polythene drum97 Cu-dust


Name of Industry / Source: M/S. STONE INDIA LIMITED.Address: 16, TARATALA ROAD, KOLKATA-700 088.




Copper 76.9 <0.1 <0.01 ------ <0.1 <0.01 ------Lead <2.3 <0.5 <0.02 ------ <0.5 <0.02 ------Zinc 4330.00 <0.1 <0.01 ------ 9.48 0.47 0.21Cadmium 694.00 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 9.2 <0.1 <0.01 ------ <0.1 <0.01 ------Chromium 1416.00 <0.6 <0.03 ------ 2.22 0.11 0.15Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. ICHAPORE RIFLE FACTORY.Address: ICHAPORE, 24-PARGANA (N)




Chromium 90900.00 4.8 0.24 0.005 14.2 0.71 0.015Cr6+ BDL ----- ----- ----- ------ ----- -----Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. SIEMENS METERING LIMITED.Address: D. H. –ROAD, P. O.-JOKA, P. S.-THAKURPUKUR, 24-PARGANA (S).




46

Copper 202.37 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 17862.00 7.11 0.35 0.03 308.88 15.44 1.73Chromium 117.04 <0.6 <0.03 ------ <0.6 <0.03 ------Cr6+ BDL ------ ------ ------ ------ ------ ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. MOHAN METAL Address: 44/1, NILMONI MITRA STREET, BURTOLA, KOLKATA-700 006




Copper 573600.00 101.03 5.05 0.01 1433.8 71.69 0.24Zinc 11180.00 3848.2 192.41 34.42 5326.6 266.33 47.64Cadmium 93.64 14.43 0.72 15.41 16.84 0.84 17.98Chromium 44.50 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Elemental status of the samples collected according to industrial category/area

TABLE- 11(Engineering Units)

Total Metal (mg/kg)Sample No. Copper Lead Zinc Cadmium Nickel Chromium94Taratala Road,Kol.-88

76.9LP-BDL

<1.5LP-BDL

4330LP-0.2

694LP-BDL

9.2LP-BDL

1416LP-0.1

95Ichapore,24-Parg. (N)

NA NA NA NA NA 90900LP-0.01

96Joka, Thakurpukur,24-Parg. (S)

202.4LP-BDL

NA NA NA 17862LP-1.7

117LP-BDL

97N.M.Street,Kol.-06

573600LP-0.2

10887LP-7.6

11180LP-47.6

93.6LP-18.0

992.2LP-1.1

44.5LP-BDL


FINDINGS:

A) No. of industries under this category: 4 (four).B) No. of samples analyzed: 4 (four).

Two of the four industrial samples in this category are of Kolkata whereasother two of North and South 24-Pargana consisting code numbers SW44,SW66, SW51 & SW57 respectively. For the first sample, investigatingelements are not found beyond danger limit. For the second one, around 9%of total chromium is observed though its leaching percentage is very low. The

47

third sample of this category is not bearing red signal for any element underinvestigation. For the last sample copper is found high as per its total metalcontent but its leaching percentage is not high, total lead and zinc content arearound 1% but their leaching percentage is high particularly for zinc it isalarming.

Following statistical data provides the amount of leachates of the solid wastesgenerated annually by some Engineering units.

TABLE-12

Sampleno

Elements Total metalin thesample(mg/kg)

Leachingpercentagein distilledwater

Leachingpercentagein buffersolution

Annualtotal wastegenerationof theindustry

Annualamountleached inwater

Annualamountleachedin buffer

94 Zn 4330 BDL 0.21 0.008 kg BDL BDLCr 1416 BDL 0.15 0.002 kg BDL BDL

95 Cr 90900 0.005 0.015 22.72 kg 0.001 kg 0.003 kg

96 Ni 17862 0.03 1.73 64.30 kg 0.019 kg 1.112 kg

48

CHAPTER-5

TYPE OF INDUSTRY: GALVANIZING UNITSTABLE-13

Sample No. Source of Sample98 ETP-Sludge99 ETP-Sludge100 ETP-Sludge 101 ETP-Sludge-1102 ETP-Sludge -2103 ETP-Sludge104 ETP-Sludge105 ETP-Sludge106 ETP-Sludge


Name of Industry / Source: M/S. NEZONE STRIPS LIMITED.Address: CHAKUNDI, DANKUNI, HOOGLY.




Copper <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 112.20 19.33 0.19 17.22 20.79 0.51 18.52Zinc 8007.00 <0.1 <0.01 ------ 347.2 3.47 4.33Chromium 68.84 <0.6 <0.03 ------ <0.6 <0.03 ------Cr6+ BDL ------ ------ ------ ------ ------ ------Nickel 315.73 28.00 <0.03 8.86 32.56 <0.03 10.31Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. UNISTAR GALVANIZERS & FABRICATORS Address: P.O. – GANGANAGAR, 24-Pargana (N)




Lead 575.3 4.57 0.228 0.79 56.99 2.85 9.90Zinc 18192.00 4288.00 214.4 23.57 8594.00 429.7 47.24Chromium 499.52 <0.6 <0.03 ------ 3.48 0.174 0.69Cr6+ BDL ------ ------ ------ ------ ------ ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

49

Name of Industry / Source: M/S. NIRMAL WIRES (P) LIMITED.Address: JESSORE ROAD, MADHYAMGRAM, 24-PARGANA (N)




Lead 37880.00 1.13 0.056 0.002 1316.2 0.658 3.47Zinc 2246.7 <0.1 <0.01 ------ 45.92 2.296 2.04Chromium 319.86 <0.6 <0.03 ------ <0.6 <0.03 ------Cr6+ BDL ------ ------ ------ ------ ------ ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. PATTON ELECTRO LIMITED.Address: GARIA ROAD, KOLKATA-84




Zinc (Dry basis) 83270.00 <0.1 <0.01 ------ 1263.00 63.18 1.51Zinc (Wetbasis)

13657.00 <0.1 <0.01 ------ 3247.00 162.37 23.77

Chromium (Drybasis)

2209.00 <0.6 <0.03 ------ <0.6 <0.03 ------

Chromium(Wet basis)

471.00 <0.6 <0.03 ------ <0.6 <0.03 ------

Cr6+ BDL ------ ------ ------ ------ ------ ------


Name of Industry / Source: M/S. PATTON ELECTRO LIMITED.Address: GARIA ROAD, KOLKATA-84




Zinc (Dry basis) 39010.00 <0.1 <0.01 ------ 1297.2 64.84 3.32Zinc Wet basis) 14097.00 <0.1 <0.01 ------ 2844.00 142.20 20.17Chromium (Drybasis)

2104.8 <0.6 <0.03 ------ <0.6 <0.03 ------

Chromium(Wet basis)

590.05 <0.6 <0.03 ------ <0.6 <0.03 ------

Cr6+ BDL ------ ------ ------ ------ ------ ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

50

Name of Industry / Source: M/S. RAMSWARUP INDUSTRIALAddress: KALYANI, NADIA




Lead 1432.8 <0.5 <0.02 ------ <0.5 <0.02 ------Zinc 10212.00 422.00 21.1 4.13 632.00 31.6 6.18Chromium 307.6 <0.5 <0.01 ------ 18.6 0.93 6.04Cr6+ BDL ------ ------ ------ ------ ------ ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. BHUSAN LIMITEDAddress: BANGIHATI, DELHI ROAD, HOOGLY




Lead 6.00 <0.5 <0.02 ------ <0.5 <0.02 ------Zinc 68.8 0.2 0.01 0.29 1.6 0.08 2.32Chromium 48.4 <0.6 <0.03 ------ <0.6 <0.03 ------Cr6+ BDLLeachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. NEZONE STRIPSAddress: DANKUNI, HOOGLY




Lead 32.6 <0.5 <0.02 ------ <0.5 <0.02 ------Zinc 5237.6 674.4 33.72 12.87 876.00 43.80 16.72Chromium 192.8 <0.6 <0.03 ------ <0.6 <0.03 ------Cr6+ BDLExtract-1: Distilled water at pH 6 Extract-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. NIRMAL WIRES (P) LIMITED.Address: JESSORE ROAD, MADHYAMGRAM, 24-PARGANA (N)




Lead 37310.00 3.60 0.18 0.01 4.2 0.21 0.01Zinc 2021.00 <0.1 <0.01 ------ <0.1 <0.01 ------Chromium 1.88 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

51

Elemental status of the samples collected according to industrial category/area

TABLE-14(Galvanizing Units)

Total Metal (mg/kg)Sample No. Copper Lead Zinc D/W Cadmium Nickel Chromium D/W98, 105Dankuni,Hoogly

<0.5, 98NA, 105

NA, 105112.2, 98

8007, 98NA, 105

NA 315.7NA, 105

Lv – 68.8Hv –192.8

99Ganganagar,24-Parg. (N)

NA 575.3LP-9.9

18192LP-47.2

NA NA 499.5LP-0.7

100,106Madhyamgram,24-Parg. (N)

NA Lv-37310Hv-37880100, LP-3.4

Lv-2021Hv-2246.7100, LP-2.0

NA NA Lv-1.88Hv-319.8LP-BDL

101, 102Garia RoadKol.-84

NA NA Lv – 39010/13657Hv – 83270/14097(101,LP-1.5/ 102, LP-20.1)

NA NA Lv – 2104.8/471.8Hv – 2209.6/590(101, LP-BDL/102, LP-BDL)

103Kalyani, Nadia

NA 1432.8LP-BDL

10212LP-6.2

NA NA 307.6LP-6.0

104Bangihati,Hoogly

NA 6.00 68.8 NA NA 48.4

Lv – Lowest value, Hv – Highest value, NA – Not analyzed, D/W – Dry basis/Wet basis, LP – LeachingPercentage using sodium hydroxide-acetic acid buffer solution at pH 4.93.

FINDINGS:

A) No. of industries under this category: 7 (seven).B) No. of samples analyzed: 9 (nine).

In this category, the industrial samples are from the districts Hoogly (98, 104 &105), 24-Pargana (N) (99, 100, 106), Kolkata (101 & 102) and Nadia (103). In thistype, except samples 101 & 102, almost all other samples contain no noticeableamount of investigating elements. But for the samples of the industry in GariaRoad area, Kolkata-84 and to some extent of Bangihati, Hoogly area total zinccontent are found high and their respective leaching percentage are alsoalarming.

Following statistical data provides the amount of leachates of the solid wastesgenerated annually by some Galvanizing units.

TABLE-15

Samplecode

Elements Total metalin thesample(mg/kg)




98 Pb 112.20 18.52 6.05 kg 1.12 kgZn 8007 4.33 432.37 kg 18.72 kgNi 315.73 10.31 17.05 kg 1.75 kg

99 Pb 575.3 9.90 10.35 kg 1.02kg

52

Zn 18192 47.24 327.45 kg 154.68 kgCr 499.52 0.69 8.99 kg 0.06 kg

100 Pb 37880 3.47 94.7 kg 3.28 kgZn 2246.7 2.04 5.61 kg 0.11 kg

101 Zn (dry) 83270 1.51 166.54 kg 2.51 kgZn (wet) 13657 23.77 27.31 kg 6.49 kg

102 Zn (dry) 39010 3.32 78.02 kg 2.59 kgZn (wet) 14097 20.17 28.19 kg 5.68 kg

103 Zn 10212 6.18 20.42 kg 1.26 kgCr 307.6 6.04 0.61 kg 0.03 kg

104 Zn 68.8 2.32 0.66 kg 0.01 kg

105 Zn 5237.6 16.72 282.83 kg 47.3 kg

106 Pb 37310 0.01 93.27 kg 9.32 kg

53

CHAPTER-6

TYPE OF INDUSTRY: DICHROMATE UNIT

TABLE-16

Sample No. Source of Sample107 Chrome Mud108 Scrubber Sludge109 Treated Chrome Mud110 Treated Chrome Mud (from storage godown)111 ETP-Sludge112 Chrome Mud - 1113 Chrome Mud – 2114 Chrome Mud – 3115 Chrome Mud - 4116 Chrome Mud collected from old storage pit117 Chrome Mud collected from treatment site118 Dumped treated Chrome Mud collected from disposal site at Kharial-1119 Dumped treated Chrome Mud collected from disposal site at Kharial-2120 Dumped treated Chrome Mud collected from disposal site at Kharial-3121 Untreated Mud for reprocessing122 Treated Mud by Na2S and finally by FeSO4123 Untreated Mud for treatment124 Treated Mud collected from Ashalata Brick Field (Disposal site)125 Treated Mud collected from Ashalata Brick Field (Disposal site)126 Treated Chrome Mud from the factory127 Treated Chrome Mud128 Chrome Mud (Before treatment)129 Chrome Mud (After treatment)130 Treated sludge from onsite storage facility


Name of Industry / Source: M/S. OXOCHROME (P) LIMITED.Address: MALANCHA, B-BISHNUPUR, 24-PARGANA (S)




Chromium 37211.00 2540.4 127.02 6.82 4601.00 230.05 12.36Cr6+ BDL ------ ------ ------ ------ ------ ------Leachate: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. LORDS CHEMICALSAddress: ULUBERIA, HOWRAH




Chromium 8639.00 106.44 5.32 1.23 488.4 24.42 5.65

54

Cr6+ 316.2 ------ ------ ------ ------ ------ ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93





Chromium 39171.00 1538.2 76.91 3.92 2136.6 106.83 5.45Cr6+ BDL ------ ------ ------ ------ ------ ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93






at pH 4.93





Chromium 13107.00 <0.6 <0.03 ------ <0.6 <0.03 ------Cr6+ BDL ------ ------ ------ ------ ------ ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. LORDS CHEMICALSAddress: ONSANI, HOWRAH





at pH 4.93

55






at pH 4.93






at pH 4.93






at pH 4.93

Name of Industry / Source: M/S. SUNCHROME LTD.Address: KONNAGAR, HOOGLY





at pH 4.93

56






at pH 4.93

Name of Industry / Source: M/S. SUNCHROME LTD. Address: KONNAGAR, HOOGLY




Chromium 27800.00 2770.00 138.5 9.96 3090.00 154.5 11.11Cr6+ 236.64 ------ ------ ------ ------ ------ ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93





Chromium 450.00 <0.6 <0.03 ------ 49.18 2.46 10.92Cr6+ BDL ------ ------ ------ ------ ------ ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93





Chromium 79.6 <0.6 <0.03 ------ 1.72 0.08 2.16Cr6+ BDL ------ ------ ------ ------ ------ ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

57

Name of Industry / Source: M/S. INDOTAN CHEMICALSAddress: BIGHATI, BHADRESWAR, HOOGLY





at pH 4.93






at pH 4.93





Chromium 15857.00 1528.00 9.63 1656.00 10.44Cr6+ BDL ------ ------ ------ ------ ------ ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93






at pH 4.93

58






at pH 4.93

Name of Industry / Source: M/S. ALCHROME INDUSTRIESAddress: KALYANI, NADIA





at pH 4.93

Name of Industry / Source: M/S. ALCHROME INDUSTRIES (P) LTD.Address: CHANDAMARI, KANCHRAPARA, 24-PARGANA (N)




Chromium 24154.4 2472.8 123.6 10.23 3032.4 151.6 12.55Cr6+ BDLLeachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. LORDS CHEMICALS.Address: ULUBERIA, HOWRAH




Chromium 32100.00 7480.00 374.00 23.30 8940.00 447.00 27.85Cr6+ 7500.00 ------- ------ ------ ------ ------ ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

59

Name of Industry / Source: M/S. LORDS CHEMICALS.Address: ULUBERIA, HOWRAH





at pH 4.93

Name of Industry / Source: M/S. INDOTAN CHEMICALS LIMITED.Address: BIGHATI, HOOGHLY




Chromium 13900.00 <0.6 <0.03 ----- <0.6 <0.03 ------Cr6+ BDLLeachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Elemental status of the samples collected according to industrial category

TABLE-17

(Dichromate Units)Total Metal (mg/kg)

Sample Code Copper Lead Zinc Cadmium Nickel Chromium 107Malancha, 24-Parg. (N)


108-111, 128-129Uluberia,Howrah

NA NA NA NA NA Lv – 8639Hv – 39171(109, LP-5.4)

112 - 115Onsani, Howrah


116 - 120Konnagar,Hoogly

NA NA NA NA NA Lv – 79.6Hv – 27800(118, LP-11.1)

121-125, 130Bighati, Hoogly


126Kalyani, Nadia


127Kanchrapara,24-Parg. (N)

NA NA NA NA NA 24154.4(LP – 12.55)


60

FINDINGS:

A) No. of industry under this category: 7(seven).B) No. of sample analyzed: 24(twenty four).

The industrial sample under this category (107) contains large amount of totalchromium and significant amount of leachate & distilled water extract,whereas hexavalent chromium is still bellow detection limit. For the othersamples, e.g., from 108 -125, the average value of chromium contain is high.For the samples, 126 & 127, the chromium-contain are also high.

Following statistical data provides the amount of leachates of the solid wastes generated annually by some Dichromate units.

TABLE-18

Samplecode

Elements Total metal in thesample(mg/kg)




107 Cr 37211 12.36 50.01 ton 6.18 ton

108 Cr 8639 5.65 6.82 ton 385.6 kgCr6+ 316.2 NA 249.8 kg NA

109 Cr 39171 5.45 3.09 ton 1.68 ton

110 Cr 34788 8.28 27.48 ton 2.27 ton

111 Cr 13107 BDL 10.35 ton NA

112 Cr 32830 5.47 25.93 ton 1.42 ton

113 Cr 29300 5.11 23.14 ton 1.183 ton

114 Cr 19940 5.22 15.75 ton 822.3 kg

115 Cr 26950 6.71 21.29 ton 1.42 ton

116 Cr 25900 15.86 62.16 kg 9.86 kg

117 Cr 24980 8.99 59.95 kg 5.39 kg

118 Cr 27800 11.11 66.72 kg 7.41 kgCr6+ 236.64 NA 0.56 kg NA

119 Cr 450 10.92 1.08 kg 0.11 kg

120 Cr 79.6 2.16 0.19 kg 0.004 kg

122 Cr 13716 5.41 11.26 ton 609.3 kg

124 Cr 18147 3.36 14.9 ton 500.7 kg

125 Cr 14831 7.53 12.18 ton 917 kg

126 Cr 13716 12.85 6.58 ton 846 kg

61

128 Cr 32100 27.85 48.15 ton 13.4 kgCr6+ 7500 BDL 11.25 ton ------

129 Cr 21100 5.21 31.65 ton 1.64 tonCr6+ 1060 BDL 1.59 ton ------

130 Cr 13900 NA 11.41 ton NA

62

CHAPTER-7

TYPE OF INDUSTRY: CHEMICAL INDUSTRYTABLE-19

Sample No. Source of Sample131 Slag from reaction tank132 ETP-Sludge from sludge storage tank133 ETP-Sludge from sludge drying bed134 Filter Sludge135 Brine Mud136 ETP Sludge137 Brine mud from drum filter outlet138 Brine mud from sludge pit No.-1139 Incineration ash140 ETP Sludge141 ETP Sludge142 Incineration ash143 ETP Sludge (grayish black)144 ETP Sludge (Brownish)145 ETP Sludge (after membrane filter)


Name of Industry / Source: M/S. PINTO CHEMICALSAddress: SODEPUR, DISTT.-24-PARGANA (N)




Copper 24797.00 37.63 1.88 0.15 225.84 11.29 0.91Lead 64630.00 1224.28 61.21 1.89 17485.6 874.28 27.05Zinc 114510.00 <0.1 <0.01 ------ 6352.00 317.6 5.54Cadmium 131.52 31.34 1.56 23.83 47.79 2.38 36.34Nickel 268.03 15.27 0.76 5.69 24.96 1.24 9.31Chromium 128.05 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. BATA INDIA LIMITEDAddress: BATANAGAR, 24-PARGANA (S)





at pH 4.93

63

Name of Industry / Source: M/S. BATA INDIA LIMITEDAddress: BATANAGAR, 24-PARGANA (S)





at pH 4.93

Name of Industry / Source: M/S. AMBICA CHEMICALS & INDUSTRIAL CORPN.Address: 68, D.C. DEY ROAD, KOLKATA-15


134 mg/kgmg/kg

mg/L % Leachedout


Copper 8.0 0.6 0.03 7.5 1.4 0.07 17.5Lead 470 142.4 7.12 30.29 146 7.3 31.06Zinc 29896 12424 621.2 41.55 13328 666.40 44.58Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel <0.6 <0.1 <0.01 ------ <0.1 <0.01 ------Chromium <1.5 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachatet-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. DURGAPUR CHEMICALS LTD.Address: DURGAPUR, BURDWAN




Mercury 7837 8.88 0.44 0.11 17.76 0.89 0.23


Name of Industry / Source: M/S. EXIDE INDUSTRIES.Address: HALDIA, MIDNAPORE

Sample No. A B C D136 mg/kg mg/l mg/l mg/lCopper 23.9 <0.01 <0.01 <0.01Lead 493.7 <0.02 0.16 4.26Zinc 65.4 0.05 0.08 0.95Cadmium <0.5 <0.01 <0.01 <0.01Nickel 7.16 <0.02 <0.02 0.11Chromium 12.5 <0.03 <0.03 <0.03



C: Leachate 2,CH3COOH-NaOH soln.

D: Leachate3,CH3COOHsoln. at pH 2.88

64

at pH 4.93

Name of Industry / Source: M/S. HINDUSTAN HEAVY CHEMICALS.Address: 19, B.T. ROAD, SOPAN, KHARDA, 24-PARGANA (N)

Sample No Total metal ionin the sample

Leachate-1 Leachate-2

137 mg/kgmg/kg

mg/L % Leachedout


Mercury 45.9 0.79 0.039 1.72 2.43 0.121 5.29


Name of Industry / Source: M/S. HINDUSTAN HEAVY CHEMICALS.Address: 19, B.T. ROAD, SOPAN, KHARDA, 24-PARGANA (N)





Mercury 82.3 0.37 0.018 0.45 1.12 0.056 1.36

Extract-1: Distilled water at pH 6 Extract-2: Acetic acid-sodium hydroxide solution at pH 4.93

Name of Industry / Source: M/S. MCCPTA.Address: HALDIA, MIDNAPORE

Sample No. A B C D139 mg/kg mg/l mg/l mg/lCopper 285.7 <0.01 0.03 *Lead 173.1 <0.02 <0.02 *Zinc 61.5 0.10 0.76 *Cadmium <0.5 <0.01 <0.01 *Nickel 388.00 <0.02 1.93 *Chromium 566.9 <0.03 <0.03 *




D:Leachate3,CH3COOHsoln. at pH 2.88

Name of Industry / Source: M/S. BAJAJ CHEMICALS.Address: DHARMATALA ROAD, HOWRAH





Copper 69.8 <0.2 <0.01 ------ 4.95 0.25 7.1

65

Lead 109.8 <0.5 <0.02 ------ <0.5 <0.02 ------Zinc 192.3 66.72 3.33 34.7 78.00 3.90 40.6Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------

Nickel 6.49 3.2 0.16 49.3 4.0 0.20 61.6Chromium 57657.00 2447.4 122.4 4.24 4824.6 241.2 8.37Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S.EXIDE INDUSTRIES.Address: HALDIA, MIDNAPORE





Lead 1492.00 28.4 1.4 1.9 31.9 1.6 2.14


Name of Industry / Source: M/S.MCCPTA.Address: HALDIA, MIDNAPORE





Arsenic BDL-- ------ BDL ------ ------ BDL ------Antimony ND ND ND ND ND ND NDNickel 693.1 18.8 0.94 2.71 188.0 14.4 41.6Manganese ND ND ND ND ND ND NDChromium(Cr6+)

BDL-- ------ BDL ------ ------ BDL ------

Chromium(Total)

19.00 <0.6 <0.03 ------ <0.6 <0.03 ------


Name of Industry / Source: M/S.EXIDE INDUSTRIES.Address: ATHPUR, SHYAMNAGAR, 24-PARGANA (N)






Nickel 12.9 <0.1 <0.01 ------ 5.6 0.28 43.4

66


Name of Industry / Source: M/S.EXIDE INDUSTRIES.Address: ATHPUR, SHYAMNAGAR, 24-PARGANA (N)






Nickel <1.0 <0.50 <0.02 ------ <0.50 <0.02 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. KOLMAC CHEMICALS.Address: KALYANI, NADIA





Cr6+ BDL ------ BDL ------ ------ BDL ------Chromium 28.00 <0.6 <0.03 ------ <0.6 <0.03 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Elemental status of the samples collected according to industrial category TABLE-20

(Chemical Industries)Total Metal (mg/kg)

Sample No. Copper Lead Zinc Cadmium Nickel Chromium 131Sodepur, 24-Pargana (N)

24797LP-0.9

64630LP-27.0

114510LP-5.5

131.5LP-36.3

268LP-9.3

128LP-BDL

132 -133Batanagar,24-Pargana (S)

NA NA NA NA NA Lv – 245.6Hv – 14861(132, LP-BDL)

134D.C.Dey Road, Kolkata-15

8.0LP-17.5

470LP-31.06

29896LP-44.58

<0.5 <0.6 <1.5

136,139, 141, 142,Haldia Lv – 23.9Hv – 285.7

Lv –173.1Hv -1492

Lv – 61.5Hv –65.4

<0.5 Lv – 7.2Hv -693

Lv –12.5 Hv -567

140, Howrah 69.8, LP-7 110, LP-BDL 192, LP-40 <0.5 6.5, LP-61 57657, LP –8.4143, 144, Athpur Lv – 12.4

Hv – 68.3Lv – 2276Hv – 511194143, LP –1.96

Lv – 75Hv - 850

<0.5 Lv – <1.0 Hv – 12.9

Lv – NAHv - NA

145, Nadia NA NA NA NA NA 28, LP-BDLLv – Lowest Value, Hv – Highest Value, NA – Not Analyzed, LP – Leaching Percentage using sodiumhydroxide-acetic acid buffer solution at pH 4.93. [Sample No.- 135 (Mercury –7837 mg/kg , LP – 0.23), Sample No.-137, 138 (Average Mercury – 64 mg/kg, Average LP – 3.3)].

67

FINDINGS:

1. Chemical Industry:

FINDINGS:

A) No. of industry under this category: 10(ten).B) No. of sample analyzed: 15(fifteen)

In this type of samples, it is found from the above table that the sample 131 bearshigh amount of total zinc-content (11.45%) and its leaching percentage is also5.5% with respect to its total amount. High leaching percentages of lead,cadmium and nickel are also found. For samples 132-133, highest value of Cr(III) is 1.48% but their leaching percentages are below detection limits. Forsample 134, though high percentages of leachates are found but their respectivetotal metals are within limits except a little high of zinc. For sample no.140 highamount of chromium and in the sample no 143 high amount of lead are alsonoticeable.

Following statistical data provides the amount of leachates of the solid wastes generated annually by some chemical industries.

TABLE-21

SampleNo





131 Cu 24797 0.91 74.39 kg 0.67 kgPb 64630 27.05 193.89 kg 52.44 kgZn 114510 5.54 343.53 kg 19.03 kgCd 131.52 36.34 0.39 kg 0.14 kgNi 268.03 9.31 0.80 kg 0.07 kg

132 Cr 14861 BDL 78.46 ton ------

133 Cr 245.6 BDL 1.3 ton ------

134 Cu 8.0 17.5 0.02 kg 0.003 kgPb 470 31.06 1.22 kg 0.38 kgZn 29896 44.58 77.7 kg 34.6 kg

135 Hg 7837 0.23 2.16 ton 4.97 kg

137 Hg 45.9 5.29 8.26 kg 0.43 kg

138 Hg 82.3 1.36 14.81 kg 0.20 kg

139 Cu 285.7 0.03 37.54 kg 0.01 kgZn 61.5 0.76 8.08 kg 0.06 kgNi 388 1.93 50.98 kg 0.98 kg

140 Cu 69.8 7.1 7.64 kg 0.54 kgZn 192.3 40.6 21.05 kg 8.54 kgNi 6.49 61.6 0.71 kg 0.43 kgCr 57657 8.37 6.31 ton 528.39 kg

141 Pb 1492 2.14 2.68 ton 57.46 kg

68

142 Ni 693.1 41.6 91.06 kg 37.88 kg

143 Pb 511194 1.96 664.55 kg 13.02 kgZn 850 4.47 1.10 kg 0.05 kgNi 12.9 43.4 0.01 kg 0.007 kg

144 Cu 12.4 13.43 0.01 kg 0.002 kgPb 2276 25.04 2.95 kg 0.74 kgZn 75 56 0.09 kg 0.002 kg

145 Cr 28 BDL 0.01 kg ------

69

CHAPTER-8

TYPE OF INDUSTRY: ZINC REPROCESSING UNITS

TABLE-22

Sample No. Source of Sample146 Process slag-1147 Process slag-2148 Process slag-3149 Process slag-4150 Sludge from filter process151 Sludge, dumped near primary reaction vat152 Sludge sample collected from polythene bag153 Zinc sulphate sludge154 Sludge from filter process155 Sludge from zinc suphate unit (After KMnO4)156 Zn-ash (burning)157 Sludge from ZnCl2 unit (After KMnO4)158 Sludge from ZnCl2 unit (After acid treatment)159 Zinc slag (burning)


Name of Industry / Source: M/S. SYANOTEXAddress: 1/4C, K. C. ROAD, KOLKATA-700 002




Lead 31162.00 <0.5 <0.02 ------ 23.49 1.17 0.07Zinc 54460.00 <0.1 <0.01 ------ 11596.00 579.8 21.29Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93





Lead 113334.00 <0.5 <0.02 ------ <0.5 <0.02 ------Zinc 154590.00 <0.1 <0.01 ------ 770.00 38.5 0.49Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

70





Lead 44268.00 <0.5 <0.02 ------ <0.5 <0.02 ------Zinc 66000.00 <0.1 <0.01 ------ 744.00 37.2 1.12Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93





Lead 28860.00 <0.5 <0.02 ------ <0.5 <0.02 ------Zinc 166670.00 845.76 42.28 0.50 7004.00 350.2 4.20Cadmium 26.40 0.34 0.01 1.28 6.31 0.31 23.90Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. SYLVAN CHEMICALS.Address: 40/1, A. ROAD, SHALKIA, HOWRAH






Nickel 80.6 54.2 2.71 67.2 59.8 2.99 74.2Chromium 413.00 <0.6 <0.03 ------ 28.51 1.42 6.9Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. PINTO CHEMICALS.Address: 455, B.T. ROAD, SUKCHAR, 24-PARGANAS (N)





Copper 239.00 39.62 1.98 16.58 40.6 2.03 16.98

71

Lead 393782.4 161714.3 8085.7 41.1 295336.8 14766.8 75.00Zinc 8969.00 78.00 3.90 0.87 517.6 25.88 5.77Cadmium <0.50 <0.10 <0.01 ------ <0.10 <0.01 ------


at pH 4.93

Name of Industry / Source: M/S. PINTO CHEMICALS.Address: 455, B.T. ROAD, SUKCHAR, 24-PARGANAS (N)







at pH 4.93

Name of Industry / Source: M/S. HICA INDUSTRIES.Address: DIGBERIA, MADHYAMGRAM, 24-PARGANAS (N)





Lead 161000.00 86.2 4.31 0.05 248.00 12.4 0.15Zinc 21000.00 404.00 20.2 1.92 404.00 20.2 1.92Cadmium 18.7 <0.1 <0.01 ------ <0.1 <0.01 ------

Nickel 169.00 75.6 3.78 44.7 90.00 4.5 53.25Leachate-1: Distilled water at pH 6 Leachte-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. SALTS & CHEMICALS.Address: MADHYAMGRAM, 24-PARGANAS (N)





Lead 7000.00 <0.5 <0.02 ------ <0.5 <0.02 ------Zinc 55000.00 21.8 1.09 0.04 38.0 1.90 0.07

72

Cadmium 2.00 <0.1 <0.01 ------ <0.1 <0.01 ------

Iron <1.5 ------ ------ ------ ------ ------ ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. SALTS & CHEMICALS.Address: MADHYAMGRAM, 24-PARGANAS (N)





Lead 9300.00 <0.5 <0.02 ------ 3.4 0.17 0.04Zinc 133000.00 30.2 1.51 0.02 37.6 1.88 0.03Cadmium 94.00 37.8 1.89 40.2 47.2 2.36 50.2

Iron 23000.00 ND ND ND ND ND NDLeachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. SYANOTEX.Address: 1/4C, K. C. ROAD, KOLKATA-700 002





Lead 300000.00 692.00 34.6 0.23 700.00 35.00 0.23Zinc 12000.00 6.60 0.33 0.05 33.6 1.68 0.28Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------


Name of Industry / Source: M/S. CROSS POINT CHEMICALS.Address: CHINSURA, HOOGHLY





Lead 22100.00 840.00 42.00 3.8 4000.00 200.00 18.1Zinc 25000.00 30.00 1.50 0.12 31.00 1.55 0.12Cadmium 85.00 40.00 2.00 47.00 42.00 2.10 49.4

Iron 15500.00 ND ND ND ND ND NDLeachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

73

Name of Industry / Source: M/S. CROSS POINT CHEMICALS.Address:





Lead 17700.00 1160.00 58.00 6.55 2320.00 116.00 13.1Zinc 270000.00 50.8 2.54 0.02 70.8 3.54 0.025Cadmium 39.00 20.00 1.00 51.2 23.00 1.15 58.9

Iron <1.5 ND ND ND ND ND NDLeachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of Industry / Source: M/S. PIGMENTS & CHEMICALS.Address: DHARSA, KOTARANG, HOOGHLY





Copper 2200.00 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 91500.00 <0.5 <0.02 ------ 6684.00 334.2 7.3Zinc 171000.00 <0.1 <0.01 ------ 13860.00 693.00 8.10Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------


at pH 4.93

Elemental status of the samples collected according to industrial categoryTABLE-23

(Zinc Processing Units)

Total Metal (mg/kg)Sample No Copper Lead Zinc Cadmium Nickel Chromium 146-149, 1561/4C,K.C.Road,Kolkata-02

NA Lv – 28860Hv – 300000(156, LP-0.23)

Lv – 12000Hv – 166670(149, LP-4.2)

Lv – <0.5Hv – 26.4(149, LP-23.9)

NA NA

150, Salkia,Howrah

517.6LP –8.7

6615LP – 3.5

99860LP – 60.6

65.4LP – 58.7

80.6LP – 74.2

413LP – 6.9

151, 152,Sukchar, 24-Parg. (N)

Lv-239Hv- 790LP-BDL

Lv- 43264Hv- 393782151, LP-75

Lv-3064.5Hv-8969151, LP-5.77

<0.5 Lv-18.2Hv- 27.1151, LP-12.5

Lv-46.6Hv-48.1151, LP-BDL

153,154, 155,Madhyamgram,24-Parg. (N)

NA Lv-7000Hv-161000153, LP-0.15

Lv-21000Hv-133000155, LP-0.03

Lv-2.00Hv-94155, LP-50

169153, 53.25

NA

157, 158,Chunchra,Hooghly

NA Lv-17700Hv- 22100157, LP-18.1

Lv-25000Hv- 270000158, LP-0.02

Lv-39Hv- 85157, LP-49

NA NA

74

159, Dhorsa,Hooghly

2200LP-BDL

91500LP-7.3

171000LP-8.1

<0.5 456LP-BDL

216LP-BDL

Lv – Lowest Value, Hv – Highest Value, NA – Not Analyzed, LP – Leaching Percentage using sodiumhydroxide-acetic acid buffer solution at pH 4.93.

FINDINGS:

A) No. of industry under this category: 7 (seven).B) No. of sample analyzed: 14(fourteen).

The analytical results of first four samples (146-149) under this category showthat the samples contain high amount of lead and zinc as found in theirrespective total metal analysis. However, leaching percentages of lead isbelow detection limit and for zinc it is 4.2%. On the other hand, thoughcadmium is bearing a little bit of total content in these samples but the highestvalued sample contains a fatal leaching percentage. For other cases,alarming amount of lead is found in the sample numbers 151, 153 & 157. Zincis noticeably high in the sample numbers 149, 150, 155, 158 &in 159. Otherfour parameters like Cu, Cd, Ni and Cr are not remarkably high for all thesamples in this category except a little amount in the sample no. 159.

Following statistical data provides the amount of leachates of the solid wastes generated annually bysome zinc processing units.

TABLE-24

SampleNo





146 Pb 31162 0.07 100.96 kg 0.07 kgZn 54460 21.29 176.45 kg 37.56 kg

147 Pb 113334 BDL 367.20 kg Not foundZn 154590 0.49 500.87 kg 2.45 kg

148 Zn 66000 1.12 213.84 kg 2.39 kg149 Zn 166610 4.20 539.81 kg 22.67 kg

Cd 26.40 23.90 0.08 kg 0.02 kg

150 Cu 517.6 8.72 0.51 kg 0.04 kgPb 6615 3.54 6.61 kg 0.23 kgZn 99860 60.6 99.86 kg 60.51 kgCd 65.4 58.7 0.06 kg 0.03 kgNi 80.6 74.2 0.08 kg 0.05 kgCr 413 6.9 0.41 kg 0.02 kg

151 Cu 239 16.98 0.71 kg 0.12 kgPb 393782.4 75 1.18 ton 885.75 kgZn 8969 5.77 26.90 kg 1.55 kgNi 27.1 12.55 0.08 kg 0.01 kg

152 Pb 43264.2 11.5 129.79 kg 14.92 kgZn 3064.5 83.6 9.19 kg 7.68 kgNi 18.2 18.68 0.05 kg 0.10 kg

154 Zn 55000 0.07 100.37 kg 0.07 kg155 Pb 9300 0.04 16.97 kg 0.006 kg

Zn 133000 0.03 242.72 kg 0.07 kgCd 94 50.2 0.17 kg 0.08 kg

156 Pb 300000 0.23 972 kg 2.23 kgZn 12000 0.28 38.88 kg 0.10 kg

75

157 Pb 22100 18.1 29.7 kg 5.37 kgZn 25000 0.12 33.6 kg 0.04 kgCd 85 49.4 0.11 kg 0.05 kg

158 Pb 17700 13.1 23.78 kg 3.11 kgZn 270000 0.02 362.88 kg 0.09 kgCd 39 58.9 0.05 kg 0.03 kg

159 Pb 91500 7.3 2.74 ton 200.38 kgZn 171000 8.1 5.13 ton 415.53 kg

CHAPTER-9

TYPE OF INDUSTRY: DYEING INDUSTRYTABLE-25

Sample No. with Code Source of Sample160 ETP-Sludge

Name of Industry / Source: M/S. DYECHEM PROCESSAddress: 135, FORESHORE ROAD, HOWRAH





Copper 2616.00 18.6 0.93 0.71 26.78 1.34 1.02Lead 1.6 <0.5 <0.02 ------ <0.5 <0.02 ------Zinc 564.00 <0.1 <0.01 ------ <0.1 <0.01 ------Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Chromium 57.6 <0.6 <0.03 ------ 28.0 1.4 49.03Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93


TABLE-26 (Dyeing Industry)

Total Metal (mg/kg)Sample Code Copper Lead Zinc Cadmium Nickel Chromium 160135, ForeshoreRoad, Howrah

2616LP-1.0

1.6LP-BDL

564LP-BDL

<0.5LP-BDL

<0.5LP-BDL

57.6LP-49.0


FINDINGS:

A) No. of industry under this category: 1 (one).B) No. of sample analyzed: 1

The only sample under this category contains controlled amount of metals underinvestigation but leaching percentage of chromium is significantly high.

76

Following statistical data provides the amount of leachates of the solid wastes generated annually bysome dyeing industries.

TABLE-27Samplecode





160 Cu 2616 1.02 23.54 kg 0.24 kgCr 57.6 49.03 0.51 kg 0.25 kg

CHAPTER-10

TYPE OF INDUSTRY: ELECTROPLATING UNITS

TABLE-28

Sample No Source of Sample161 ETP-Sludge162 ETP-Sludge

Name of Industry / Source: M/S. G. D. ELECTROPLATING WORKSAddress: 78, BEE-HIVE GARDEN, P.O. + P. S.-BELGHORIA, KOLKATA-56





Copper 22445.00 115.52 5.77 0.51 922.8 46.14 4.11Zinc 1434.3 <0.1 <0.01 ------ 149.78 7.48 10.44Nickel 14854.00 8.87 0.44 0.05 580.00 29.0 3.90Chromium 51470.00 <0.6 <0.03 ------ 36.6 1.82 0.07Cr6+ BDL ------ ------ ------ ------ ------ ------


Name of Industry / Source: M/S. SAWALKA KELAddress: 16, NILGUNGE ROAD, PAMHATI, 24-PARGANAS (N)





Zinc 4500 2.4 0.12 0.05 3.3 0.16 0.07Chromium 2166.4 <0.6 <0.03 ------ <0.6 <0.03 ------Cr6+ BDL ------ ------ ------ ------ ------ ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution

at pH 4.93

78


TABLE-29

(Electroplating Unit)

Total Metal (mg/kg)Sample Code Copper Lead Zinc Cadmium Nickel Chromium 16178, Bee-HiveGarden, Kol.-56

22445LP-4.1

NA 1434.3LP-10.4

NA 14854LP-3.9

51470LP-0.07

162Pamhati, 24-Parganas (N)

NA NA 4500 NA NA 2166.4LP-NIL


FINDINGS:

A) No. of industry under this category: 2 (two).C) No. of sample analyzed: 2 (two)

Both the samples under this category have been analyzed which bear noticeableamount of chromium (but low leaching percentage) however, the amount of total-copper-content is marginal but leaching percentage is noticeable in the firstsample whereas the status of zinc content for the second follows the copper ofthe first.

Following statistical data provides the amount of leachates of the solid wastes generated annually by some electroplating units.

TABLE-30

Samplecode



Annual totalwaste generationof the industry


161 Cu 22445 4.11 3.85 kg 0.15 kgZn 1434.3 10.44 0.24 kg 0.02 kgNi 14854 3.90 2.54 kg 0.09 kgCr 51470 0.07 8.83 kg 0.006 kg

162 Zn 4500 0.07 54 kg 0.03 kg

79

CHAPTER-11

OTHER SAMPLES

Name of Industry / Source: M/S. WIMCO LIMITED.Address: ALAMBAZAR, KOLKATA-700 035

163 Cr6+ was found BDL in aqueous extract

Name of Industry / Source: M/S. WIMCO LIMITED.Address: ALAMBAZAR, KOLKATA-700 035





Chromium(Total)

376.1 86.2 4.31 22.91 89.96 4.5 23.92


Name of Industry / Source: M/S. EASTERN AGENCY.Address: ASHOKNAGAR, 24-PARGANA (N)

Acid Extractable Total Metal in mg/kgSample No. 165 166 167 168Copper 211.9 33.1 6000.00 129.1Lead 2173.00 597.00 46870.00 3444.00Zinc 7356.00 2409.5 86590.00 4563.00Cadmium <0.5 <0.5 740.00 <0.5

Nickel 29.1 380.5 112.6 10.4Chromium 97.00 87.6 218.3 275.9

Average elemental status of the samples (No. 165 – 168):TABLE-43

Average amount of total metal found in the sample (mg/kg)Elements Copper Lead Zinc Cadmium Nickel Chromium Cr6+ IronOverallaverage

1593.5 13271.0 25229.6 185.0 133.1 169.7 NA NA

Ashoknagar, 24-Prg.(N) area

Do Do Do Do Do Do Do Do

80

CHAPTER-12

NON-INDUSTRIAL SAMPLES (Kolkata Zone)

TABLE-31

SampleNo.

Source of Sample

169 Mango leaf collected from Hindustan Lever area170 Soil collected from the premises of N.S.S.O. building171 Mango leaf collected from the premises of N.S.S.O. building172 Soil sample collected from S.T.C.173 Mango leaf collected from adjacent leaf


Name of Industry / Source: M/S.HINDUSTAN LEVER AREA.Address: GARDEN RICH, HIDE ROAD, KOLKATA-


169(L-6)



Copper 3.5 NA NA ------ NA NA ------Lead <2.3 NA NA ------ NA NA ------Zinc 70.15 NA NA ------ NA NA ------Cadmium <0.5 NA NA ------ NA NA ------Nickel <0.5 NA NA ------ NA NA ------Chromium <1.5 NA NA ------ NA NA ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution


Name of Industry / Source: PREMISES OF N.S.S.O. BUILDINGAddress: DUNLOP AREA, KOLKATA-




Copper 27.4 NA NA ------ NA NA ------Lead 55.6 NA NA ------ NA NA ------Zinc 103.8 NA NA ------ NA NA ------Cadmium <0.5 NA NA ------ NA NA ------Nickel 33.37 NA NA ------ NA NA ------Chromium <1.5 NA NA ------ NA NA ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution


81

Name of Industry / Source: PREMISES OF N.S.S.O. BUILDING.Address: DUNLOP AREA, KOLKATA-


171(L-7)



Copper 6.0 NA NA ------ NA NA ------Lead 54.26 NA NA ------ NA NA ------Zinc 11.4 NA NA ------ NA NA ------Cadmium <0.5 NA NA ------ NA NA ------Nickel <0.5 NA NA ------ NA NA ------Chromium <1.5 NA NA ------ NA NA ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution


Name of Industry / Source: SHYAMBAZAR TENNIS CLUB.Address: SHYAMBAZAR, KOLKATA-




Copper 19.3 NA NA ------ NA NA ------Lead <1.5 NA NA ------ NA NA ------Zinc 88.7 NA NA ------ NA NA ------Cadmium <0.5 NA NA ------ NA NA ------Nickel 34.13 NA NA ------ NA NA ------Chromium <1.5 NA NA ------ NA NA ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution


Name of Industry / Source: SHYAMBAZAR TENNIS CLUB.Address: SHYAMBAZAR, KOLKATA-


173(L-8)



Copper <0.5 NA NA ------ NA NA ------Lead 33.35 NA NA ------ NA NA ------Zinc 11.00 NA NA ------ NA NA ------Cadmium <0.5 NA NA ------ NA NA ------Nickel <0.5 NA NA ------ NA NA ------Chromium <1.5 NA NA ------ NA NA ------Extract-1: Distilled water at pH 6 Extract-2: Acetic acid-sodium hydroxide solution


82

NON-INDUSTRIAL SAMPLES (Village Sites)

TABLE-32

Sample No.with Code

Source of Sample

174 Mango leaf from the premises of Mr. Beni Madhab Roy175 Soil sample under the same mango tree176 Mango leaf from the garden of Mr. Kartik Banerjee177 Soil sample under the same mango tree178 Mango tree from the road side-mango tree at the entrance of the village179 Soil sample under the same mango tree of the same spot


Name of Industry / Source: NON INDUSTRIAL VILLAGE SITE.Address: VILL.- KAMALPUR, P. O.- CHAKDAHA, DISTT.-NADIA (W. B.)


174(L-9)



Copper <0.5 NA NA ------ NA NA ------Lead <1.5 NA NA ------ NA NA ------Zinc <0.5 NA NA ------ NA NA ------Cadmium <0.5 NA NA ------ NA NA ------Nickel <0.5 NA NA ------ NA NA ------Chromium <1.5 NA NA ------ NA NA ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution


Name of Industry / Source: NON-INDUSTRIAL VILLAGE SITEAddress: VILL.- KAMALPUR, P. O.- CHAKDAHA, DISTT.-NADIA (W. B.)






83

Name of Industry / Source: NON-INDUSTRIAL VILLAGE SITE.Address: VILL.- KAMALPUR, P. O.- CHAKDAHA, DISTT.-NADIA (W. B.)


176(L-10)



Copper <0.5 NA NA ------ NA NA ------Lead <2.3 NA NA ------ NA NA ------Zinc 17.1 NA NA ------ NA NA ------Cadmium <0.5 NA NA ------ NA NA ------Nickel <0.5 NA NA ------ NA NA ------Chromium <1.5 NA NA ------ NA NA ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution


Name of Industry / Source: NON-INDUSTRIAL VILLAGE SITE.Address: VILL.- KAMALPUR, P. O.- CHAKDAHA, DISTT.-NADIA (W. B.).




Copper 13.3 NA NA ------ NA NA ------Lead <2.3 NA NA ------ NA NA ------Zinc 27.8 NA NA ------ NA NA ------Cadmium <0.5 NA NA ------ NA NA ------Nickel 12.4 NA NA ------ NA NA ------Chromium 11.3 NA NA ------ NA NA ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution




178(L-11)



Copper <0.5 NA NA ------ NA NA ------Lead <2.3 NA NA ------ NA NA ------Zinc 27.3 NA NA ------ NA NA ------Cadmium <0.5 NA NA ------ NA NA ------Nickel <0.5 NA NA ------ NA NA ------Chromium 10.7 NA NA ------ NA NA ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution


84





Copper 9.3 NA NA ------ NA NA ------Lead <2.3 NA NA ------ NA NA ------Zinc 69.1 NA NA ------ NA NA ------Cadmium <0.5 NA NA ------ NA NA ------Nickel 5.3 NA NA ------ NA NA ------Chromium 9.5 NA NA ------ NA NA ------Leachate-1: Distilled water at pH 6 Leachate-2: Acetic acid-sodium hydroxide solution


This category contains 11 (eleven) soil samples and mango leaves out ofwhich 5 (five) samples (169-173) are from Garden Rich area, Dunlop areaand Shyambazar area in Kolkata and 6 (six) samples (174-179) are from avillage site, Kamalpur, Nadia. Of course, all the sites are within controlled limithowever, the samples from Kolkata zone bears a little higher contamination ofsome of the metals as compared to village- site samples.

85

CHAPTER 13

COMPARATIVE ANALYTICAL RESULTS OF SOME OF THE SAMPLES, USING TWODIFFERENT TYPES OF FACILITIES, AAS FACILITY (PCB) & XRF FACILITY (SINP)

(Concentration units are in mg/g)TABLE-33

Chromium Nickel LeadSample No.AASFacility

XRF Facility AASFacility

XRFFacility

AASFacility

XRF Facility

65 NA BDL NA 0.82 ± 0.02 NA 0.16 ± 0.0171 3.700 BDL 0.017 BDL 0.013 BDL72 5.737 32.2 ± 3.9 0.646 BDL 0.004 BDL73 0.040 BDL 0.018 BDL 0.093 BDL74 0.077 BDL 0.012 BDL 0.875 BDL75 0.010 BDL 0.049 BDL 0.140 BDL76 0.014 BDL 0.006 BDL 6.140 BDL77 0.039 BDL 0.004 BDL 0.054 BDL78 0.033 BDL 0.004 BDL BDL BDL79 1.128 BDL 0.383 BDL 26.250 5.4 ± 0.480 4.140 BDL 0.009 BDL BDL BDL81 3.293 BDL 0.961 BDL BDL BDL82 0.278 BDL 2.020 BDL BDL BDL84 1.479 37.8 ± 4.5 NA BDL 32.029 4.5 ± 0.585 1.406 BDL NA BDL 29.341 BDL89 0.008 BDL 0.012 BDL 0.800 BDL90 BDL 21.1 ± 2.5 BDL91 0.298 BDL BDL BDL 0.124 BDL92 2.535 BDL 0.666 BDL 13.989 2.6 ± 0.493 0.130 9.0 ± 1.0 0.023 BDL 0.095 0.7 ± 0.194 1.42 3.74 ± 0.21 0.009 0.19 ± 0.04 BDL 0.06 ± 0.0198 0.06 3.88 ± 0.44 0.31 BDL 0.11 0.35 ± 0.0199 0.50 0.82 ± 0.08 NA BDL 0.57 0.85 ± 0.01103 0.30 BDL NA BDL NA 1.55 ± 0.02110 34.78 49.65 ± 0.33 NA 0.66 ± 0.03 NA BDL121 15.72 66.19 ± 0.91 NA 0.55 ± 0.03 NA BDL131 0.12 2.76 ± 0.86 0.26 1.04 ± 0.04 64.63 169.82 ± 1.12132 14.86 38.30 ± 0.43 NA BDL NA 0.16 ± 0.01146 NA BDL NA BDL 31.16 12.08 ± 0.09160 0.05 BDL NA BDL NA 0.03 ± 0.001

NA : Not Analysed

86

For the analysis of copper, zinc and cadmium

(Concentration units are in mg/g)

Copper Zinc CadmiumSampleCodes AAS

FacilityXRF Facility AAS

FacilityXRF Facility AAS

FacilityXRF Facility

65 133.10 174.60 ± 1.93 136.30 181.85 ± 2.03 NA NA94 0.07 0.90 ± 0.04 4.33 9.52 ± 0.07 0.69 NA98 BDL BDL 8.00 10.73 ± 0.39 NA NA99 NA BDL 18.19 27.85 ± 0.31 NA NA103 BDL 12.01 ± 0.16 10.21 12.01 ± 0.16 BDL NA110 NA BDL NA 0.33 ± 0.01 NA NA121 NA BDL NA 0.38 ± 0.02 NA NA131 24.79 40.90 ± 0.26 114.51 192.95 ± 1.23 0.13 NA132 NA BDL NA 0.93 ± 0.02 NA NA146 NA 1.27 ± 0.0 54.46 692.51 ± 4.38 BDL NA160 2.61 0.59 ± 0.01 0.56 0.59 ± 0.01 BDL NA

NA : Not Analysed

87

CHAPTER-14

MUNICIPAL SOLID WASTE

Following municipal solid waste samples (21 samples) have beencollected from various garbage dumping sites of following municipalities.

TABLE-34S.L.NO.

NAME OF MUNICIPALITY ADDRESS NO. OF SAMPLESCOLLECTED

1 Kolkata Dhapa Eastern Bypass, Kolkata 22 Kamarhati Municipality Kamarhati, 24-Parg. (N) 23 Panihati Municipality Panihati, 24-Parg. (N) 24 Khardah Municipality Khardah, 24-Parg. (N) 25 Barasat Municipality Barasat, 24-Parg. (N) 26 Madhyamgram Municipality Madhyamgram, 24-Parg. (N) 27 New Barrackpore Municipality New Barrackpore, 24-Parg. (N) 28 North Barrackpore Municipality North Barrackpore, 24-Parg. (N) 29 Barrackpore Municipality Barrackpore, 24-Parg. (N) 210 Bhatpara Municipality Bhatpara, 24-Parg. (N) 211 Naihati Municipality Naihati, 24-Parg. (N) 1

TABLE-35

SAMPLE NO.WITH CODE

SOURCE

MW 1 Western dumping site, Dhapa, Eastern Bypass, KolkataMW 2 Eastern dumping site, Dhapa, Eastern Bypass, KolkataMW 3 May Diwas Pally, Dakshineswar site, Kamarhati MunicipalityMW 4 Agarpara dumping site, Kamarhati MunicipalityMW 5 Ramchandrapur dumping site, southern part, Panihati MunicipalityMW 6 Ramchandrapur dumping site, northern part, Panihati MunicipalityMW 7 Beside M.S. Mukherjee Road, Eastern dumps (near playground), Khardah MunicipalityMW 8 Beside M.S. Mukherjee Road, Western dumps (near khatal), Khardah MunicipalityMW 9 Kajipara-Jagdighata dumping site,near a pit under construction, Barasat MunicipalityMW 10 Kajipara-Jagdighata dumping site,beside a pond, Barasat MunicipalityMW 11 Digberia-Tetultala wall side dumps, Madhyamgram MunicipalityMW 12 Digberia-Tetultala eastern side dumps, Madhyamgram MunicipalityMW 13 12 No. Bill Kanda dumping site, eastern dumps, New Barrackpore MunicipalityMW 14 12 No. Bill Kanda dumping site, western dumps, New Barrackpore MunicipalityMW 15 Ramkrishnapally dumping site, Roadside lower part, North Barrackpore MunicipalityMW 16 Ramkrishnapally dumping site, Roadside upper part, North Barrackpore MunicipalityMW 17 Muktapukur trenching ground, eastern end, Barrackpore MunicipalityMW 18 Muktapukur trenching ground, dumps near entrance, Barrackpore MunicipalityMW 19 Jagaddal-Sundiapara dumping site, near sweage treatment plant, Bhatpara MunicipalityMW 20 Jagaddal-Sundiapara dumping site, near agricultural land, Bhatpara MunicipalityMW 21 Lichubagan-Kadamtala Ghat (Bank of the river Ganga), Naihati Municipality

88

The analytical results (using AAS) of the municipal samples are given below-

Name of the municipality/corporation: KOLKATA CORPORATION.Address: DHAPA, EASTERN BYPASS, KOLKATA.

NO &CODE

AcidExtractableMetal

Extract -1 Extract -2

MW-1 mg/kg mg/kg mg/L % Leachedout


Copper 87.00 1.6 0.08 1.83 1.8 0.09 2.06Lead 82.00 <0.5 <0.02 ------ 0.6 0.03 0.73Zinc 377.5 1.2 0.06 0.31 25.8 1.29 6.83Cadmium 1.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 21.5 2.4 0.12 11.16 3.0 0.15 13.95Chromium 44.5 <0.6 <0.03 ------ 0.8 0.89 1.79Extract-1: Distilled water at pH 6 Extract-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of the municipality/corporation: KOLKATA CORPORATION.Address: DHAPA, EASTERN BYPASS, KOLKATA.

NO &CODE





Copper 69.0 1.4 0.07 2.02 5.4 0.27 7.82Lead 111.0 1.0 0.05 0.90 1.6 0.08 1.44Zinc 205.0 2.4 0.12 1.17 22.2 1.11 10.8Cadmium 0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 14.0 0.6 0.03 4.28 0.8 0.04 5.71Chromium 55.5 0.8 0.04 1.44 1.2 0.06 2.16Extract-1: Distilled water at pH 6 Extract-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of the municipality: KAMARHATI MUNICIPALITY.Address: KAMARHATI, 24-PARGANAS (N).

NO &CODE





Copper 90.0 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 22.0 <0.5 <0.02 ------ <0.5 <0.02 ------Zinc 500.5 <0.1 <0.01 ------ 3.6 0.18 0.71Cadmium 0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 12.0 <0.1 <0.01 ------ <0.1 <0.01 ------Chromium 17.5 <0.6 <0.03 ------ <0.6 <0.03 ------Extract-1: Distilled water at pH 6 Extract-2: Acetic acid-sodium hydroxide solution

at pH 4.93

89

Name of the municipality: KAMARHATI MUNICIPALITY.Address: KAMARHATI, 24-PARGANAS (N).

NO &CODE





Copper 135.0 0.2 0.01 0.14 5.0 0.25 3.70Lead 226.0 <0.5 <0.02 ------ 1.2 0.06 0.53Zinc 548.0 11.6 0.58 2.11 19.4 0.97 3.54Cadmium 0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 18.5 0.4 0.02 2.16 1.2 0.06 6.48Chromium 40.0 0.2 0.01 0.5 0.4 0.02 1.0Extract-1: Distilled water at pH 6 Extract-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of the municipality: PANIHATI MUNICIPALITY.Address: PANIHATI, 24-PARGANAS (N).

NO &CODE





Copper 160.0 0.8 0.04 0.2 0.01 0.12Lead 130.5 <0.5 <0.02 ------ <0.5 <0.02 ------Zinc 202.5 1.4 0.07 0.69 1.0 0.05 0.49Cadmium 0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 1.65 <0.1 <0.01 ------ <0.1 <0.01 ------Chromium 19.0 <0.6 <0.03 ------ 0.6 0.03 3.15Extract-1: Distilled water at pH 6 Extract-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of the municipality: PANIHATI MUNICIPALITY.Address: PANIHATI, 24-PARGANAS (N).

NO &CODE





Copper 50.0 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 44.0 <0.5 <0.02 ------ <0.5 <0.02 ------Zinc 340.0 1.2 0.06 0.35 9.2 0.46 2.70Cadmium 0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 16.5 0.4 0.02 2.42 0.2 0.01 1.21Chromium 27.5 <0.6 <0.03 ------ 0.6 0.03 ------Extract-1: Distilled water at pH 6 Extract-2: Acetic acid-sodium hydroxide solution

at pH 4.93

90

Name of the municipality: KHARDAH MUNICIPALITY.Address: KHARDAH, 24-PARGANAS (N).

NO &CODE





Copper 75.0 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 227.5 <0.5 <0.02 ------ 2.4 0.12 1.05Zinc 147.5 0.2 0.01 0.13 27.4 1.37 18.57Cadmium 0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 16.0 0.4 0.02 2.5 1.6 0.08 10.0Chromium 53.0 <0.6 <0.03 ------ <0.6 <0.03 ------Extract-1: Distilled water at pH 6 Extract-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of the municipality: KHARDAH MUNICIPALITY.Address: KHARDAH, 24-PARGANAS (N).

NO &CODE





Copper 34.5 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 24.0 <0.5 <0.02 ------ <0.5 <0.02 ------Zinc 112.5 0.5 0.01 0.44 22.0 0.44 19.55Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 13.0 0.2 0.01 1.53 0.4 0.02 3.07Chromium 15.5 <0.6 <0.03 ------ 0.6 0.03 1.08Extract-1: Distilled water at pH 6 Extract-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of the municipality: BARASAT MUNICIPALITY.Address: BARASAT, 24-PARGANAS (N).

NO &CODE





Copper 80.0 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 49.0 <0.5 <0.02 ------ <0.5 <0.02 ------Zinc 255.0 0.8 0.04 0.31 9.6 0.48 3.76Cadmium 1.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 19.5 0.4 0.02 2.05 0.8 0.04 4.10Chromium 28.5 <0.6 <0.03 ------ 0.6 0.03 2.10Extract-1: Distilled water at pH 6 Extract-2: Acetic acid-sodium hydroxide solution

at pH 4.93

91

Name of the municipality: BARASAT MUNICIPALITY.Address: BARASAT, 24-PARGANAS (N).

NO &CODE





Copper 65.0 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 57.5 <0.5 <0.02 ------ <0.5 <0.02 ------Zinc 197.5 0.6 0.03 0.30 14.8 0.74 7.49Cadmium 0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 18.0 0.4 0.02 2.22 0.6 0.03 3.33Chromium 23.0 <0.6 <0.03 ------ 0.6 0.03 2.60Extract-1: Distilled water at pH 6 Extract-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of the municipality: MADHYAMGRAM MUNICIPALITY.Address: MADHYAMGRAM, 24-PARGANAS (N).

NO &CODE





Copper 37.5 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 28.0 <0.5 <0.02 ------ <0.5 <0.02 ------Zinc 360.0 1.0 0.05 0.27 14.4 0.72 4.0Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 18.5 <0.1 <0.01 ------ 0.2 0.01 1.08Chromium 20.5 <0.6 <0.03 ------ 0.6 0.03 2.92Extract-1: Distilled water at pH 6 Extract-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of the municipality: MADHYAMGRAM MUNICIPALITY.Address: MADHYAMGRAM, 24-PARGANAS (N).

NO &CODE





Copper 49.5 <0.1 <0.01 ------ <0.1 <0.01 ------Lead 69.0 <0.5 <0.02 ------ <0.5 <0.02 ------Zinc 305.0 0.8 0.04 0.26 15.2 0.48 4.98Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 19.5 <0.1 <0.01 ------ <0.1 <0.01 ------Chromium 24.5 <0.6 <0.03 ------ 0.8 0.04 3.26Extract-1: Distilled water at pH 6 Extract-2: Acetic acid-sodium hydroxide solution

at pH 4.93

92

Name of the municipality: NEW BARRACKPORE MUNICIPALITY.Address: NEW BARRACKPORE, 24-PARGANAS (N).

NO &CODE





Copper 145.0 <0.1 <0.01 ------ 0.2 0.01 0.13Lead 53.0 <0.5 <0.02 ------ <0.5 <0.02 ------Zinc 495.0 1.4 0.07 0.28 15.0 0.75 3.03Cadmium 0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 16.0 0.5 0.01 3.12 0.5 0.01 3.12Chromium 32.5 <0.6 <0.03 ------ 0.8 0.04 2.46Extract-1: Distilled water at pH 6 Extract-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of the municipality: NEW BARRACKPORE MUNICIPALITY.Address: NEW BARRACKPORE, 24-PARGANAS (N).

NO &CODE





Copper 82.0 0.6 0.03 0.73 0.6 0.03 0.73Lead 109.5 0.5 0.01 0.45 0.5 0.01 0.45Zinc 197.5 0.8 0.04 0.40 2.2 0.11 1.11Cadmium 1.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 13.5 0.4 0.02 2.96 0.4 0.02 2.96Chromium 104.0 0.4 0.02 0.38 0.8 0.04 0.76Extract-1: Distilled water at pH 6 Extract-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of the municipality: NORTH BARRACKPORE MUNICIPALITY.Address: NORTH BARRACKPORE, 24-PARGANAS (N).

NO &CODE





Copper 44.5 0.6 0.03 1.34 0.6 0.03 1.34Lead 30.0 0.5 0.02 1.66 0.5 0.02 1.66Zinc 125.0 0.2 0.01 0.16 16.6 0.83 13.28Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 11.5 0.2 0.01 1.73 0.8 0.04 6.95Chromium 16.5 0.2 0.01 1.21 0.4 0.02 2.42Extract-1: Distilled water at pH 6 Extract-2: Acetic acid-sodium hydroxide solution

at pH 4.93

93

Name of the municipality: NORTH BARRACKPORE MUNICIPALITY.Address: NORTH BARRACKPORE, 24-PARGANAS (N).

NO &CODE





Copper 28.5 0.6 0.03 2.10 0.6 0.03 2.10Lead 17.5 <0.5 <0.02 ------ <0.5 <0.02 ------Zinc 39.0 0.2 0.01 0.51 8.2 0.41 21.02Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 10.0 0.2 0.01 2.0 0.4 0.02 4.0Chromium 14.5 <0.6 <0.03 ------ <0.6 <0.03 ------Extract-1: Distilled water at pH 6 Extract-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of the municipality: BARRACKPORE MUNICIPALITY.Address: BARRACKPORE, 24-PARGANAS (N).

NO &CODE





Copper 67.5 1.8 0.09 2.66 0.8 0.04 1.18Lead 19.5 <0.5 <0.02 ------ <0.5 <0.02 ------Zinc 247.5 0.6 0.03 0.24 2.4 0.12 0.96Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 11.0 0.2 0.01 1.81 0.2 0.01 1.81Chromium 33.0 0.8 0.04 2.42 1.4 0.07 4.24Extract-1: Distilled water at pH 6 Extract-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of the municipality: BARRACKPORE MUNICIPALITY.Address: BARRACKPORE, 24-PARGANAS (N).

NO &CODE





Copper 45.0 1.0 0.05 2.22 0.8 0.04 1.77Lead 28.5 <0.5 <0.02 ------ <0.5 <0.02 ------Zinc 147.5 0.8 0.04 0.54 6.2 0.31 4.20Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 16.0 0.2 0.01 1.25 0.4 0.02 6.66Chromium 23.5 <0.6 <0.03 ------ 1.5 0.03 6.38Extract-1: Distilled water at pH 6 Extract-2: Acetic acid-sodium hydroxide solution

at pH 4.93

94

Name of the municipality: BHATPARA MUNICIPALITY.Address: BHATPARA, 24-PARGANAS (N).

NO &CODE





Copper 47.5 1.4 0.07 2.94 0.8 0.04 1.68Lead 158.5 <0.5 <0.02 ------ 1.6 0.08 1.00Zinc 92.5 0.6 0.03 0.64 7.0 0.35 7.56Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 44.0 0.2 0.01 0.45 0.4 0.02 0.90Chromium 40.5 <0.6 <0.03 ------ <0.6 <0.03 ------Extract-1: Distilled water at pH 6 Extract-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of the municipality: BHATPARA MUNICIPALITY.Address: BHATPARA, 24-PARGANAS (N).

NO &CODE





Copper 37.5 0.6 0.03 1.6 0.6 0.03 1.6Lead 34.5 <0.5 <0.02 ------ <0.5 <0.02 ------Zinc 75.0 0.2 0.01 0.2 4.0 0.2 0.5Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 18.0 0.4 0.02 2.22 0.4 0.02 2.22Chromium 21.5 <0.6 <0.03 ------ <0.6 <0.03 ------Extract-1: Distilled water at pH 6 Extract-2: Acetic acid-sodium hydroxide solution

at pH 4.93

Name of the municipality: NAIHATI MUNICIPALITY.Address: NAIHATI, 24-PARGANAS (N).

NO &CODE





Copper 84.0 1.0 0.05 1.19 0.4 0.02 0.4Lead 22.5 <0.5 <0.02 ------ <0.5 <0.02 ------Zinc 110.0 0.4 0.02 0.36 6.2 0.31 5.63Cadmium <0.5 <0.1 <0.01 ------ <0.1 <0.01 ------Nickel 22.5 0.2 0.01 0.88 0.4 0.02 1.77Chromium 21.0 <0.6 <0.03 ------ 0.6 0.03 2.85Extract-1: Distilled water at pH 6 Extract-2: Acetic acid-sodium hydroxide solution

at pH 4.93

95

Following tables provide some statistical data on the solid waste generation & disposal ofthe municipalities visited so far:-

TABLE-36

Municipality Generation (Ton/day) Disposal (Ton/day)Kolkata dhapa 2500 2000

Kamarhati 278.32 150.00Panihati 329.00 164.00Khardah 70.00 63.00Barasat 72.00 52.00

Madhyamgram 65.00 60.00New Barrackpore 14.00 10.50North Barrackpore 40.00 40.00

Barrackpore 28.00 26.00Bhatpara 220 180Naihati 80.00 60.00

TABLE-37

Samplecode

Elements Total metal in thesample (mg/kg)


Disposal of totalwaste per day

Probable amountleached in buffer

MW1 Cu 87 2.06 174 kg 3.58 kgPb 82 0.73 164 kg 1.19 kgZn 377.5 6.83 755 kg 51.56 kgNi 21.5 13.95 43 kg 5.99 kgCr 44.5 1.79 89 kg 1.59 kg

MW2 Cu 69 7.82 138 kg 10.8 kgPb 111 1.44 222 kg 3.19 kgZn 205 10.8 410 kg 44.28 kgNi 14 5.71 28 kg 1.6 kgCr 55.5 2.16 111 kg 2.4 kg

MW3 Zn 500.5 0.71 75 kg 0.53 kgMW4 Cu 135 3.70 20.25 kg 0.75 kg

Pb 226 0.53 33.9 kg 0.18 kgZn 548 3.54 82.2 kg 2.90 kgNi 18.5 6.48 2.7 kg 0.17 kgCr 40 1.00 6.0 kg 0.06 kg

MW5 Cu 160 0.12 26.24 kg 0.03 kgZn 202.5 0.49 33.21 kg 0.16 kgCr 19 3.15 3.11 kg 0.09 kg

MW6 Zn 340 2.70 55.76 kg 1.50 kgNi 16.5 1.21 2.70 kg 0.03 kg

MW7 Pb 227.5 1.05 14.33 kg 0.15 kgZn 147.5 18.57 9.29 kg 1.72 kgNi 16 10 1.00 kg 0.1 kg

MW8 Zn 112.5 19.55 7.08 kg 1.38 kgNi 13 3.07 0.82 kg 0.02 kgCr 15.5 1.08 0.97 kg 0.01 kg

Samplecode

Elements Total metal in thesample (mg/kg)


Disposal of totalwaste per day

Probable amountleached in buffer

MW9 Zn 255 3.76 13.26 kg 0.49 kg

96

Ni 19.5 4.10 1.01 kg 0.04 kgCr 28.5 2.10 1.48 kg 0.03 kg

MW10 Zn 197.5 7.49 10.27 kg 0.77 kgNi 18 3.33 0.93 kg 0.03 kgCr 23 2.60 1.19 kg 0.03 kg

MW11 Zn 360 4.0 21.6 kg 0.86 kgNi 18.5 1.08 1.11 kg 0.01 kgCr 20.5 2.92 1.23 kg 0.03 kg

MW12 Zn 305 4.98 18.3 kg 0.91 kgCr 24.5 3.26 1.47 kg 0.04 kg

MW13 Cu 145 0.13 1.52 kg 0.001 kgZn 495 3.03 5.19 kg 0.15 kgNi 16 3.12 0.16 kg 0.005 kgCr 32.5 2.46 0.33 kg 0.008 kg

MW14 Cu 82 0.73 0.86 kg 0.006 kgPb 109.5 0.45 1.15 kg 0.005 kgZn 197.5 1.11 2.07 kg 0.02 kgNi 13.5 2.96 0.14 kg 0.004 kgCr 104 0.76 1.09 kg 0.008 kg

MW15 Cu 44.5 1.34 1.78 kg 0.02 kgPb 30 1.66 1.2 kg 0.02 kgZn 125 13.28 5.0 kg 0.66 kgNi 11.5 6.95 0.46 kg 0.03 kgCr 16.5 2.42 0.66 kg 0.01 kg

MW16 Cu 28.5 2.10 1.14 kg 0.02 kgZn 39 21.02 1.56 kg 0.32 kgNi 10 4.0 0.4 kg 0.008 kg

MW17 Cu 67.5 1.18 1.75 kg 0.02 kgZn 247.5 0.96 6.43 kg 0.06 kgNi 11 1.81 0.28 kg 0.005 kgCr 33 4.24 0.85 kg 0.03 kg

MW18 Cu 45 1.77 1.17 kg 0.02 kgZn 147.5 4.20 3.83 kg 0.16 kgNi 16 6.66 0.41 kg 0.02 kgCr 23.5 6.38 0.61kg 0.03 kg

MW19 Cu 47.5 1.68 8.55 kg 0.14 kgPb 158.5 1.00 28.53 kg 0.28 kgZn 92.5 7.56 16.65 kg 1.25 kgNi 44 0.90 7.92 kg 0.07 kg

MW20 Cu 37.5 1.6 6.75 kg 0.1 kgZn 75 0.5 13.5 kg 0.06 kgNi 18 2.22 3.24 kg 0.07 kg

MW21 Cu 84 0.4 5.04 kg 0.02 kgZn 110 5.63 6.6 kg 0.37 kgNi 22.5 1.77 1.35 kg 0.02 kgCr 21 2.85 1.26 kg 0.03 kg

97

CHAPTER-15CONCLUSIONS

Keeping in view the present scenario of solid waste generation and itselemental status of the investigating industries, it is felt that a lot of precautions tobe implemented effectively by the industrial as well as by the municipalauthorities for the protection of environment. Though very few industries andmunicipalities of the state have been covered so far for sample analysis, yet aneffective picture has been worked out. Elemental deposition on leaves of thetrees near any type of industry can ensure about the air pollution and leachatesof soil samples can provide data regarding the surface as well as the possiblewater contamination of those areas. Apart from these two types of samples,several waste samples from different industries as well as from different sites ofmunicipalities have been analysed quantitatively and its impact on environmenthas easily been estimated by knowing their amount of annual waste generation.

final report project -“investigation of presence of

Documents