dbr for water treatment
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CUSTOMER
ITC LIMITEDPAPERBOARDS & SPECIALTY PAPERS DIVISION
UNIT:TRIBENI ,HOOGHLY DISTRICT,WEST BENGAL
PROJECT1 X 12 MW COGENERATION POWER PLANT
OWNER’s CONSULTANTSPB PROJECTS AND CONSULTANCY LIMITED
CHENNAI
SUPPLIERENMAS GB POWER SYSTEMS PROJECTS LIMITED
CHENNAI-600 018.
NAME SIGN DATETITLE:
DESIGN BASIS REPORT FOR WATER TREATMENTSYSTEM
PPD AVK 24/10/11
CHD KRG 25/10/11
APPD SRS 27/10/11 DOC NO.:
EN09-109-G-DOC-0602
REV NO.
SIZE : A4 0√√√√
SUBMITTED FOR APPROVAL INFORMATION REFERENCE RECORD CONSTRUCTION
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RevNo. Date Reason for Revision
AlteredChecked
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CONTENTS
SL.NODESCRIPTION
Page
No.
1 INTRODUCTION 4
2 PROJECT INFORMATION AND DESIGN BASIS 5
2.1 SITE DATA 5
2.2 DESIGN CONDITIONS 5
2.3 POWER SUPPLY FOR ELECTRICAL SYSTEM 5
3 DESIGN BASIS 6
4.0 WATER SYSTEM DESIGN INPUTS 10
5.0 WATER SYSTEM CAPACITY – CALCULATIONS 10
6.0 WATER SYSTEM SCHEME 14
7.0 WATER TREATMENT SYSTEM DESCRIPTION 14
8.0 ELECTRICAL SYSTEM 17
9.0 CONTROL & INSTRUMENTATION SYSTEM 18
ANNEXURES
01 ANNEXURE – 01 – Raw Water Analysis Reports 19
Reports -1 ( Technical Contract document page no 09 OF 468) 19
Report -2 - Report No. W(D)/10-11/2873 dated 09.03.2011 20
Report – 3- Report No . W(D)/11-12/686 Sep 01 , 2011 23
02 ANNEXURE – 02 – Return Condensate Analysis Reports 25
Reports -1 ( Technical Contract document page no 09 OF 468) 25
Report – 3- Report No . W(D)/11-12/687 Sep 01 , 2011 26
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1. INTRODUCTION
M/s. ITC LIMITED, Paperboards & Specialty Papers Division, Unit: Tribeni (hereinafterreferred to as ITC) is developing a coal based Cogeneration Power Plant (CPP) in their existingplant at Chandrahati, Dist. Hooghly, West Bengal. The generated power shall cater to the paperplant needs and power plant auxiliary requirement.
This Design Basis Report (DBR) covers the details pertaining to Water Treatment system forthe above 12 MW Cogeneration Power Plant.
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2. PROJECT INFORMATION AND DESIGN BASIS
2.1 SITE DATA
i Location Chandrahati, Dist. Hooghly, West Bengal
ii Elevation above mean sea level
27m
iii Wind velocity (max) 50 m/sec (as per IS 875 Part III)
iv Seismic Data Zone –III (As per IS 1893 : 2002)v Maximum dry bulb temperature 48°C
vi Minimum dry bulb temperature 6°C
2.2 DESIGN CONDITIONS
i Design ambient temperature for plant equipment °C 35
ii Design temperature for electrical equipment °C 50
iii Design wet bulb temperature °C 28
iv Relative Humidity - Design % 60
2.3. POWER SUPPLY FOR ELECTRICAL SYSTEM
Auxiliary & Control Voltage:
Single phase motors : 240V,50Hz,1 Phase
Three Motors : 415V, 50 Hz, 3 Phase
Control Supply for LV Starters : 110V(55-0(E)55), 50 Hz, 1 Phase
Panel lighting & space heater : 240V, 50 Hz, 1 Phase
Motor space heater : 240V, 50 Hz, 1 Phase
Supply Variations:
Voltage Variation : ±10%
Frequency Variation : ±5%
Combined variation of voltage & Frequency : 10%
System Short Circuit Current:
415V LV System : 50 KA rms for 1 second
System Grounding:
415V LV System : Solidly Earthed
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Design Margin for motor:
Motors shall have 15% margin up to and including 110kW rating and 10% margin for above110kW rating, over and above the shaft power requirement of driven equipment at design point.
3.0 DESIGN BASIS
3.1 RAW WATER ANALYSIS (For Power Cycle Make-up Stream & Cooling tower
Make-up Stream)
The raw water analysis reports received from the OWNER is provided in the enclosed
“ANNEXURE – 01 – RAW WATER ANALYSIS REPORTS”
The raw water analysis reports (Refer Annexure-1) were studied and selected maximum values
are indicted below. The system will be designed considering these parameters.
Sl
No.Test parameters Unit Design parameter
1. Colour Hazen 1
2. Odour Unobjectionable
3. Taste: Agreeable
4. Turbidity NTU 4.2
5. pH 7.2-7.6
6. TSS ppm 10
7. TDS ppm 474
8. Total Hardness as caco3 ppm 294
9. Total Alkalinity ppm 405
10. Colloidal Silica as SiO2 mg/l 0.2
11. Sodium as Na mg/l 37.8
12. Potasium as K mg/l 12.6
13. Ammonium as NH4 mg/l <0.01
14. Barium as Ba mg/l 0.1
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Sl
No.Test parameters Unit Design parameter
15. P - Alkalinity as CaCO3 mg/l Nil
16. M - Alkalinity as CaCO3 mg/l 293
17. Bi Carbonate as CaCO3 mg/l 293
18. Carbonate as CaCO3 mg/l Nil
19. Iron as (Ferrous ) mg/l <0.1
20. Iron as (Ferric) mg/l 0.2321. Calcium as Ca mg/l 71
22. LimE as CaO mg/l 99.4
23. Magnesium as Mg mg/l 17.3
24. Sulphate as SO4 mg/l < 5
25. sulphide as S2- mg/l <0.1
26. Chloride as Cl mg/l 12
27. Nitrate as NO3 mg/l 1.828. Nitrate Nitrogen as N mg/l 0.41
29. Nitrite as NO2 mg/l < 0.02
30. Reactive Silica mg/l 14.3
31. Dissolved Phosphate as
PO4mg/l < 0.003
32. Total phosphate as PO4 mg/l < 0.003
33. Copper as Cu mg/l < 0.05
34. Manganese as Mn mg/l 0.11
35. Fluoride as F mg/l 0.48
36. Nickel as Ni mg/l < 0.05
37. Mercury as Hg mg/l < 0.001
38. Cadmium as Cd mg/l < 0.01
39. Total Chromium as Cr mg/l < 0.05
40. Arsenic as As mg/1 0.008
41. Cyanide as CN mg/l < 0.05
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Sl
No.Test parameters Unit Design parameter
42. Lead as Pb mg/l < 0.05
43. Zinc as Zn mg/l < 0.05
44. Aluminium as Al mg/l < 0.03
45. Dissolved Volatile solids mg/l 88
46. Dissolved Fixed solids mg/l 250
47. BOD mg/l < 5.048. COD mg/l < 5.0
49. Dissolved Oxygen mg/l 6.2
50. Oxygen Absorbed in 4 hrs
at 37°Cmg/l 0.1
51. Ammoniacal Nitrogen mg/l < 0.01
52. Ammonia as NH3 mg/l < 0.01
53. Free Carbondioxide as CO2 mg/l 0.88
3.2 PROCESS CONDENSATE WATER ANALYSIS
The process condensate water analysis reports received from the OWNER is provided in theenclosed “ANNEXURE – 02 – PROCESS CONDENSATE RAW WATER ANALYSISREPORTS”
The process condensate water analysis reports were studied and selected maximum valuesare indicted below. The systems will be designed considering these parameter .
Sl No. Test parameters Unit Results
1. pH ppm 7.1 - 8.95
2. TDS ppm 2.90
3. Conductivity microsiemens/cm 7
4. Hardness ppm 1
5. SiO2 ppm Nil
6. TSS ppm 12
7. Total Dissolved Phosphate Ppm 0.005
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3.3 PROPOSED WATER TREATMENT PLANT OUTPUT PARAMETERS
The following are the proposed water treatment plant output parameters
a. DM WATER QUALITY AT MB OUTLET (before pH dosing)
SL.NO DESCRIPTION UNIT
TREATED WATER
QUALITY
1. Colloidal silica mg/l Nil2. Reactive silica mg/l < 0.02
3. PH value 6.5-7.5
4. Conductivity
micro
mho/cm< 0.3
b. DM WATER QUALITY AT CONDENSATE POLISHING UNIT (CPU)
OUTLET (before pH dosing)
SL.NO DESCRIPTION UNIT
TREATED WATER
QUALITY
1. PH value 6.5-7.5
2. Conductivity
micro
mho/cm< 0.3
3. Reactive Silica Mg/l < 0.02
c. TREATED COOLING TOWER MAKE UP WATER QUALITY
SL.NO DESCRIPTION UNIT
TREATED WATER
QUALITY
1 pH VALUE 6.5 – 8.5
2 TOTAL HARDNESS mg/l Nil
3 GENERAL APPEARANCE Clear & Colorless
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4.0 MAKE-UP WATER SYSTEM DESIGN PROCESS INPUTS
Sl.
NoDESCRIPTION UNIT Data
4.1. AFBC Boiler capacity BMCR TPH 72
4.2. AFBC Boiler capacity TMCR TPH 66.6
4.3. Blow down (maximum) for WTP sizing per Boiler % 3
4.4. Blow down (normal) for plant operation per Boiler % 1.5
4.5.Emergency make up requirement during boiler
start up (% of AFBC boiler MCR requirement)% 30
5.0 MAKE-UP WATER SYSTEM CAPACITY – CALCULATIONS
SL.
NoDESCRIPTION UNIT Data
5.1.0. DM WATER SYSTEM
Boiler Make up water requirement
5.1.1. Blow down water quantity from AFBC Boiler for DM
plant sizing (ref. clauses 4.1 &.4.3)TPH 2.16
5.1.2. Blow down water quantity per day TPD 51.84
5.1.3. AFBC TMCR Boiler Feed water requirement (at
deaerator outlet)TPH 68.01
5.1.4.
Bleed steam for De aerator (as per HMBD – Load
point LC-1(Max process steam – max steamconsumption – max power generation))
TPH 9.15
5.1.5. Process Return condensate (Considered “0” as the
CPU outlet is fed to DM Water storage tank)TPH 0
5.1.6. Condensate from Water cooled condenser (as per
HMBD Load point LC-1)TPH 21.39
5.1.7. HP Heater drain (as per HMBD Load point LC-1) TPH 7.44
5.1.8. AFBC Boiler Makeup water (ref. Clauses 4.1-
(5.1.4+5.1.5+5.1.6+5.1.7)) TPH 34.02
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SL.
NoDESCRIPTION UNIT Data
5.1.9. Spray water for process PRDS (as per HMBD Load
point LC-1)TPH 1.414
5.1.10. Total Boiler Makeup Water requirement for AFBC
Boiler((5.1.8+5.1.9) x 24)TPD 850.4
5.1.11.
Net Process Condensate water available after
treatment from CPU Unit (after deducting MBregeneration water of 12TPD) (360 m3/hr-12.0 m3/d)
TPD 348
5.1.12. DM Water requirement m /day 502.4
DM Plant
5.1.13. No. of operating hours per day for normal DM plant hrs. 20
5.1.14. Required capacity of DM plant (ref. Clauses (5.1.12 /
5.1.13)m3 /hr 25.12
5.1.15. No. of DM streams provided Nos. 25.1.16. Capacity of each stream provided m3/hr 30
Condensate Polishing Unit
5.1.17. Process return condensate water (50% Process
condensate return)m3 /day 360
5.1.18. No. of operating hours per day for process return
condensate water polishing unit (DM plant)hrs. 21
5.1.19. Process return condensate water polishing unit (DM
plant) capacity as per requirement m3 /hr 17.14
5.1.20. Process return condensate water polishing unit (DM
plant) Provided (as per contract )m3 /hr 21
DM Make up Pumps cum Initial fill pumps
5.1.21. Emergency make up required during one Boiler start
up (ref. Clauses 4.1 &4.5 )m3 /hr 21.6
5.1.22.
Normal make up requirement of operating Boiler (reg.
Clauses 4.1 & 4.4 ) considering blowdown losses m3
/hr 1.08
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SL.
NoDESCRIPTION UNIT Data
5.1.23. Total make up requirement during Boiler start up
(5.1.21 + 5.1.22)m3 /hr 22.6
5.1.24. Total DM make up water requirement during
operation (ref. Clause 5.1.10 / 24)m3 /hr 35
5.1.25. Make up capacity available through De-aerator make-
up pumps (1W+1S)m3 /hr 35
DM Tank
5.1.26. DM make up water requirement per day (ref. Clause
5.1.24)m3 /day 850.4
5.1.27. DM tank storage capacity as per contract m 2 X 250
5.1.28. DM storage tank provided m 2 X 250
5.1.29. Water volume of AFBC Boiler m 70
5.1.30. Adequate DM storage capacity to cater to fill volumeof one Boiler?
Yes
5.2.0. REVERSE OSMOSIS WATER SYSTEM
5.2.1.
Degassed water input per day per stream to DM plant
considering regeneration requirement (ref. Clauses
5.1.16)
m3 /day 600
5.2.2. No. of operating hours per day for RO plant hrs 20
5.2.3. RO plant output capacity required m /hr 30
5.2.4. RO plant outlet capacity as per contract m /hr 2X 30
5.2.5. RO plant capacity provided m /hr 2 X 30
5.3.0. SERVICE WATER SYSTEM
5.3.1. Building Service Water & Drinking Water
Requirementm3/hr 0.5
5.3.2. IBD Tank Service Water Spray Requirement
(Intermediate)m3/hr 1
5.3.3. Emergency application for Ash / Coal handling m3/hr 1
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SL.
NoDESCRIPTION UNIT Data
system (during start-up / non availability of waste
water)
5.3.4. Total Service Water requirement (ref.5.3.1 to 5.3.3) m3/day 60
5.3.5. Service water pump capacity (1W+1S) with margin m3/hr 5
5.4.0. Water requirement for Coal / Ash handling system
5.4.1. Wet scrapper conveyor water requirement (continuous– 24 hours/day)
m3/hr 5
5.4.2. Fly ash Silo Dust Conditioner Spray Water
Requirement ( 4 hrs Per Day)m3/hr 11
5.4.3. Coal Handling Dust Suppression System ( 8 hrs Per
Day)m3/hr 8
5.4.4. Total water requirement m3/day 228
5.4.5. Available waste water from Water Balance Diagram m3/day 456
5.4.6. Neutralizing pit discharge pump capacity with 10%
marginm3/hr 21
5.5.0. N-pit sizing
5.5.1. Case 1 Normal operation only reject from RO and UF
system from water balancem3/hr 14.5
5.5.2. Case 2 MGF +ACF Backwash (20 min/one day) m3/regen. 29.6
5.5.3. Case 3. SAC or SBA regeneration (45 min/one day) m3/regen. 23
5.5.4. Case 4. MB regeneration (Once in 7 day for 90 min) m3/regen. 42
5.5.5. Out of the above the highest contributor in one hour
i.e 5.5.2, is considered for N-pit sizingm3/hr 29.6
5.5.6. N-pit volume required considering 2 hrs holding time m3 60
Note :
Service cum potable water tank of 5 m3 capacity will be provided at the CHS MCC
room top. OWNER shall terminate the service water at the tank inlet. From this tank 2 x100% service cum potable water pump will be provided. The CHS requirement will be
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met by the pumps. OWNER shall terminate the service water at the STG building Topoverhead tank. And Tank capacity for this will be 1.0 m3.
6.0. WATER SYSTEM SCHEME:
The enclosed water balance diagram drawing no EN09-109-P-PFD-0501 Rev 01 andProcess Flow Diagram drawing no. EN09-109-P-PFD-0502 Rev 01, indicate thescheme for water system including water treatment system and cooling water system.
WATER TREATMENT SYSTEM DESCRIPTION:
The power plant water treatment system consists of the following streams,
A. Boiler DM Water Make-Up System (2 x 100% - 30m3/hr Product water each
with 20 hrs operation/day ) consisting of the following,
i. Pre Treatment System consisting of multi grade filter, activated carbon
filter and Ultra filtration unit
ii. RO and Degasser system for meeting for requirement of DM plant
iii. DM Plant consisting of Strong Acid Cation Unit (SAC), Strong Base
Anion Unit (SBA) and Mixed Bed Unit (MB)
B. Condensate Polising System (1 x 100% - 21 m3/hr) consisting of the following,
i. Plate Heat Exchanger Unit
ii. Multi Grade Filter Unit
iii. Mixed Bed Unit
C. Cooling Water Make-Up System (1 x 40m3/hr) consisting of the following,
i. Multi grade Filter
ii. Softener Unit
D. Apart from the above, a Circulating Water Treatment (CWT) System is also
provided for the cooling tower circulating water
A. Boiler DM Water Make-up System
i. Pre Treatment System
45 m3 /hr at 3.5 kg/cm2 of Clarified/ Bore well water for each stream at MGF inlet shallbe provided by OWNER at the terminal point.
The clarified/ bore well water is passed through a Multigrade filter to reduce thesuspended solids present in the water. This filter is provided to keep a check on thesuspended solids. The suspended particles in the feed water get entrapped in the filter
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media. The filter will have to be washed with effluent water for 10 to 15 mins daily.
Activated carbon provides an effective method for adsorbing a wide range of organicCompounds and can be considered for use in the removal of organic disinfection byproducts and organic precursors.
Activated carbon is used is known as granular activated carbon and is known as GAC.Granular activated carbon is used in a vessel similar in construction to pressure sandfilter and hence referred to as activated carbon filter.
The Filtered water is then passed through the Ultra Filtration System for furtherpolishing.
Ultrafiltration
2x 100 % Ultra filtration unit (each stream complete with basket filter and UF module),In addition, common Fast flush tank with necessary pumps and valves will be providedfor the UF system. The UF system shall be operated on fully automatic mode throughPLC. The UF system will be operated for 20 hours/day.
Ultra-filtration is a low-pressure membrane process for the removal of colloidal silicaand Colloidal Particles (measured in terms of Silt Density Index). The feed effluentflows from the inside of the fibers, permeates through the membrane and is removed asthe product from the shell side.
Ultra-filtration Pre-treatment is the best pre-treatment technologies for ensuring costeffective performance of the Reverse Osmosis System. Ultra-filtration (UF) is a unitoperation often used to remove suspended solids, colloids, traces of oil andmacromolecules from liquid streams. As pre-treatment to Reverse Osmosis System, UFsignificantly increases the membrane life for the R.O membranes and reduces thecleaning frequencies, thereby reducing operating expense for the R.O System.
The Filtered water is then passed through the RO System for further polishing
ii. RO (Reverse Osmosis) and Degasser System
The treated water collected in the UF product water storage tank will be pumpedthrough RO feed pumps(2W+1S) to the Micron Cartridge filters. The cartridge filterswill be followed by high pressure pumps (2W+1S) to boost the pressure of the waterand then feed into high-pressure Reverse Osmosis (RO) Permeators and Accessories.The RO module shall be complete with micron cartridge filter, necessary dosing for de-chlorination, anti-scalant. A bypass arrangement with a dump valve operated throughthe Oxidation Reduction Potential (ORP) instrument shall be provided to safeguard theRO membranes.
The skid shall be designed for 100% permeate flow required as per plant water balanceat minimum 70 – 75 % recovery.
The RO product water will be further passed through a degasser tower where the weakacids and other corrosive gases will be released. Degassed water from the degassertower will get collected to the degassed water storage tank of 30 min holding capacity
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(30cu.m). Degassed water for make up to the auxiliary cooling water system and as feedto the DM plant will be drawn from the degassed water tank through suitable pumps.The RO and degasser system will be operated for 20 hours/day.
iii. DM Plant.
The treated water collected in the degassed water storage tank will be pumped to thetwo DM plant streams through DM feed pumps (2W+1S). Each DM plant stream shallconsist of Stron Acid Cation (SAC) unit followed by Strong Base Anion (SBA) unit andMixed Bed (MB) unit. The product from MB (2 X 30m3/hr ) will be led to 2 nos of DMstorage tanks(MS - Epoxy coated), each of 250 m3 capacity. The DM water tanks shall
be provided with necessary instrumentation to maintain water level.View glass for resin level will be provided in MB Vessels only.
Anion to cation ratio in MB shall be 2 :1 and free board shall be 120%.
Regeneration time for MB is once in 7 days.
A common pH correction dosing pumps (1W+1S) shall be located at the outlet of MBto maintain the required pH of DM water Condensate polishing unit.
All the dosing tanks will be sized for the one day requirement. The MOC of the dosingtank will be HDPE.
B. CONDENSATE POLISING SYSTEM
Process Condensate water will be pumped (By OWNER) to the Plate Heat Exchangefor reducing the temperature from 70 deg.C to 40 Deg.C. The condensate watercollected in the condensate return storage tank (50KL MS Epoxy coated) will bepumped to the condensate polishing unit through CPU Feed Pump (1W+1S). The CPUUnit shall consist of a multi grade filter (MGF) followed by a mixed bed (MB) unit. Theproduct from MB (1 X 21m3/hr) will led to 2 nos of common DM storage tanks.
View glass for resin level will be provided in MB Vessel.
Anion to cation ratio in MB shall be 2 : 1 and free board shall be 120%.
Regeneration time for MB is once in a days.
pH correction dosing system ( with 1W+1S pump) shall be located at the outlet of MBto maintain the required pH of output water. The CPU plant is designed to operated for20 hours/day.
C. COOLING TOWER MAKE-UP WATER SYSTEM:
The cooling tower make up water stream consists of a MGF and a softener unit. Rawwater (40 m3 /hr at 3.5 kg/cm2) shall be provided at Multi-grade filter (MGF) inlet byOWNER. Product water shall be stored in 75 kL MS Epoxy coated storage tank. The
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treated water shall be pumped to the cooling tower basin by Cooling Water make uppump (1W+1S) of 40 m3/hr capacity each.
D. CIRCULATING WATER TREATMENT SYSTEM
The CWT system has the following equipments,
H2S04 dosing system (2 dosing pumps & one day tank of suitable capacity).
Non Oxidizing biocide (With dosing tank & ejector based dosing system)
Corrosion & Scale Inhibitor dosing (2 dosing pumps & tank of suitablecapacity)
Piping of UPVC material
Dosing tanks shall be Poly Ethylene semi transparent.
pH & temperature indicator (Gauge) in the Cooling water lines.
Local control panel with ON / OFF / TRIP indication and manual START /STOP push buttons shall be provided.
One no. Side stream filter shall be provided. The capacity of side streamfilter shall be 5% of total circulating water capacity.
8.0. ELECTRICAL SYSTEM
LV MOTORS
General
Motors will conform to the latest edition of applicable IS, IEC standards. Motor dutywill be Continuous. Motors will run continuously at rated output with variation insupply voltage ± 10% and frequency of ± 5% and combined voltage and frequencyvariation of absolute sum 10%. Motors will be suitable for operation at 50°C ambienttemperature. All LV Motors will be of energy efficient type, and will have EFF2efficiency class.
Insulation
Motor winding will be of copper and will have class F insulation but limited to class Btemperature rise.
Bearings
In general motors’ will have anti-frictional ball bearing on both DE & NDE side. Allbearings will be 63 series wherever applicable or as per manufacturer’s standard.
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Enclosure & Cooling
The method of cooling will be TEFC for LV Motors. Degree of protection for enclosurewill be IP55 for indoor and IPW55 for outdoor installation
Temperature Detectors
LV Motors rated from 55kW onwards will be provided with PTC100 thermistor forwinding temperature detection. Thermistors leads will be wired up to the separateterminal box.
Space Heater
LV motors rated from 55kW onwards will be provided with Anti- moisturecondensation space heaters. The Space Heater will be switched on whenever the motoris idle. Space heater wires will be wired up to a separate terminal box.
Motor Main Terminal Box
The terminal box will be capable of withstanding maximum system fault current(50KA) for duration of 0.25 sec. The terminal box will be suitable to rotate by 360° in 4steps and will be mounted on top of the motor body.
Earthing Provision
Double earthing provision for motor body and main terminal boxes will be provided.
9.0. CONTROL & INSTRUMENTATION SYSTEM
Operation of the entire Water Treatment Plant is manual except for the UF/ RO Plants -which will be automated with PLC systems and accordingly pneumatic actuated valveswill be considered at appropriate points in the UF/RO Plants. Two non-redundantProgrammable Logic Controllers (PLCs) will be used for the UF and RO Plantsautomation. These PLCs will be supplied with Modbus RTU RS485 ports (ModbusSlave to Main Plant DCS). Modbus communication is envisaged between PLC andDCS for monitoring purpose.
For the remaining pumps, start / stop will be by manual operation. Pump trip foravoiding dry run will be incorporated through level switches interlocked in MCC Panel.For important Analog measurements, Transmitters will be used with in-built indication.These analog parameters will be connected to DCS through hardwired for monitoringpurpose.
One No. raw water common header line flow measurement with Orifice and differentialpressure transmitter shall be provided.
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ANNEXURE – 01 – Raw Water Analysis Reports
RAW WATER ANALYSIS ( Technical Contract document page no 09 OF 468)
The following river water analysis as submitted by the OWNER is considered forsizing the water treatment plant.
Sl No DESCRIPTION UNITS
R.V. Briggs ReportW(S)/07-08/1990
Dated on
23/02/2008 (Samplefrom DeepTubewell No. 40)
R.V. Briggs ReportW(D)/08-09/1911
Dated on
31/12/2008 (Samplefrom Borewell No-52)
1. pH 7.6 7.2
2. TSS ppm NOT INDICATED NOT INDICATED
3. TDS ppm 474 304
4. Turbidity NTU 2 1
5. Electrical Conductivity µs/cm NOT INDICATED NOT INDICATED
6. Total Hardness ppm 294 258
7. Total Alkalinity ppm 405 2888. Carbonate ppm NOT INDICATED NOT INDICATED
9. Chlorine ppm 12 8
10. Fluorine ppm NOT INDICATED NOT INDICATED
11. Biochemical OxygenDemand ppm NOT INDICATED NOT INDICATED
12. Chemical OxygenDemand ppm NOT INDICATED NOT INDICATED
13. Calcium (Ca++) ppm 79 69.9
14. Magnesium (Mg++) ppm 61.6 20.3
15. Sodium (Na+) ppm NOT INDICATED NOT INDICATED
16. Nitrates ppm 11.9 0.97
17. Sulfates ppm BDL BDL
18. Silica ppm 24.7 21
19. Iron ppm BDL 0.3
20. Zinc ppm NOT INDICATED NOT INDICATED
Note: BDL-Below Detection Limit. Minimum Detection Limit of Fe=0.1
ppm,SO 4=0.5ppm
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Report No. W(D)/10-11/2873 dated 09.03.2011 provided below,
No W(D)/10-11/2873Date : March 10,
2011Issued to : M/S ITC LTD
: PS. PD UNIT -TRIBENI
Your Ref. No.: Chandahati,Hooghly
Sample Description : Water
Collection Source: Surface water tank at PumpHouse
Date of sample collection : 03.03.2011Analysis Completed on : 09.03.2011Method of Sampling : IS : 1622 : 1981 & IS : 3025 (Part - 1) - 1987Mode of Sampling : GrabA. Microbiological Test Findings :
SlNo.
Test parameters Test Method Unit Result
1Sulphar ReducingBacteria /100 ml
IS : 13428 Anex C :1998 CFU Absent
2 Total Viable Count/ml IS : 5402-2002 CFU 1.86 x 10 2
B. Physical Test Findings:1. Appearance (Before Filtration) : Clear 2.Appearance (After Filtration) : clear
C. Chemical Test Findings:
SlNo.
Test parameters Test Method Unit Result
1 a) Colour: IS:3025-1964Clause-5 Hazen 1b) Odour: Unobjectionable
2 Taste: Agreeable3 Turbidity APHA 20 Edn.2130B NTU 4.24 pH value APHA 20 Edn.4500H+B …… 7.45 TSS APHA 20 Edn. 2540 D mg/l <106 Total Dissolved Solids APHA 20 Edn.2540C mg/l 3287 Conductivity at 25˚ C APHA 20 Edn 2510 B µs/cm 5808 Colloidal Silica as
SiO2 APHA 20 Edn. 4500 -
SiO 2 mg/l
0.29
Sodium as NaAPHA 20 Edn. 3500
NaBmg/l
37.810 Potasium as K APHA 20 Edn. 3500 KB mg/l 12.6
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SlNo.
Test parameters Test Method Unit Result
11 Ammonium as NH 4 APHA 20 Edn. 4500NH 3F
mg/l<0.01
12 Barium as Ba IS : 13428 : Annex F mg/l <0.113 P - Alkalinity as
CaCO 3 IS:3025(Part-23)-1986 mg/l
Nil14 M - Alkalinity as
CaCO 3 IS:3025(Part-23)-1986 mg/l
29315 Bi Carbonate as
CaCO 3
IS:3025(Part-23)-1987 mg/l
29316 Carbonate as CaCO 3 IS:3025(Part-23)-1987 mg/l Nil17 Iron as (Ferrous ) APHA 20 Edn.3500FeB mg/l <0.118 Iron as (Ferric) APHA 20 Edn.3500FeB mg/l 0.2319 Calcium as Ca APHA 20 Edn.3500CaB mg/l 5620 Lima as CaO APHA 20 Edn.3500CaB mg/l 7821 Magnesium as Mg APHA20Edn.3500MgB mg/l 1722 Sulphate as SO 4 IS:3025(Part-24)-1986 mg/l <523 sulphide as S - APHA20Edn.3500MgB mg/l <0.124 Chloride as Cl APHA 20 Edn.4500ClB mg/l 1025 Nitrate as NO 3 APHA20Edn.4500NO3 mg/l 1.8
26 Nitrate Nitrogen as N APHA20Edn.4500NO3D mg/l 0.4127 Nitrite as NO 2 APHA20Edn.4500-
NO2Bmg/l
<0.0228 Total Hardness as
CaCO 3 APHA 20 Edn.2340C mg/l
21229 Reactive Silica APHA 20 Edn.4500
SiO 2Cmg/l
12.130 Dissolved Phosphate
as PO 4 APHA 20 Edn.4500 - PD mg/l
<0.00331 Total phosphate as
PO4APHA 20 Edn.4500 - PD mg/l
<0.00332 Copper as Cu APHA 20 Edn.3111B mg/l <0.0533 Manganese as Mn APHA 20 Edn.3111B mg/l 0.0834 Fluoride as F APHA 20 Edn.4500FD mg/l 0.4835 Nickel as Ni APHA 20 Edn. 3111 B mg/l <0.0536 Mercury as Hg APHA 20 Edn.3112B mg/l <0.00137 Cadmium as Cd APHA 20 Edn. 3111 B mg/l <0.0138 Total Chromium as Cr APHA 20 Edn. 3111 B mg/l <0.0539 Arsenic as As APHA 20 Edn.3114C mg/1 0.008
40Cyanide as CN APHA 20 Edn.4500CN-
Fmg/l
<0.05
41 Lead as Pb APHA 20 Edn.3111B mg/l <0.0542 Zinc as Zn APHA 20 Edn.3111B mg/l <0.0543 Aluminium as Al APHA 20 Edn.3111D mg/l <0.03
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SlNo.
Test parameters Test Method Unit Result
44Dissolved Volatilesolids APHA 20 Edn.2540E
mg/l78
45 Dissolved Fixed solids APHA 20 Edn.2540E mg/l 250
46BOD IS : 3025 (Part - 44) -
1993mg/l
<5.047 COD APHA 20EDn 5220 B mg/l <5.048 Dissolved Oxygen IS : 3025 (Part - 38) mg/l 6.2
49 Oxygen Absorbed in 4
hrs at 37°CIS : 3025 - 1964 (cl-51) mg/l 0.1
50Ammoniacal Nitrogen APHA 20 Edn. 4500
NH,Fmg/l
<0.01
51Ammonia as NH 3 APHA 20 Edn. 4500
NH,Fmg/l
<0.01
52 Free Carbondioxide asCO2
APHA 20 Edn.4500 -CO2C mg/l 3.08
Note :Minimum Detection Limit of Cu - 0.05mg/1, Phenolic Compounds - 0.001mg/1,Iron - 0.1mg/lHg - 0.001mg/1, Cd - 0.01mg/1,Se - 0.01mg/1,CN - 0.05mg/1,Zn - 0.05mg/l, BOD - 5.0mg/l,COD- 5.0mg/l
Al - 0.03mg/1,Boron - 1.0mg/1.Pb - 0.05mg/1,TSS - 10mg/l, Ba - 0.5mg/l,SO 4 - 5mg/l,PO 4 -0.03mg/lNi - 0.05mg/l,
D) If any wide variation in water analysis is observed during contract execution stage
resulting in addition / enhancement of any equipment the same shall be at additional cost.
Provision to add Ultra-Filtration in future to be made before RO. Same should be shown
in layout & P&ID. In case of requirement of UF due to colloidal silica more than 0.2mg/l
in raw water, supplier will provide on mutually agreed price, Necessary flanges & blinds
to be included.
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SAMPLE DRAWN BY US :No. W(D)/11-12/686 Date : September 01, 2011 Page 1 of 2Issued to : M/S I.T.C. LTD.
: P.S.P.D., Unit Tribeni, Chandrahati, Hooghly.Your Ref. No. : Letter dtd. 19.08.2011Sample Description : WaterCollection Source : Fresh Water from Surface Pump House.Sample Collected on : 19.08.2011Analysis Completed on : 29.08.2011
Method of Sampling: IS : 1622 : 1981 & IS : 3025 (Part -1) - 1987
Mode of Sampling : GrabA. Microbiological Test Findings :Sl
No.Test parameters Test Method Unit Results
1 ColiformOrganism/100ml
APHA 20 Edn. 9222 BCFU 58
2 E. coli/100ml APHA 20 Edn.9222 D CFU Absent3 TVC IS:5402:2002 CFU 7304 Sulphate Reducing
BacteriaIS:13428:1998 Annex - 6
Absent
B. Physical Test Findings:1. Appearance when analysed : Clear. 2.Appearance After Filtration : Clear.C. Chemical Test Findings:Sl
No.Test parameters Test Method Unit Results
1 Colour: IS:3025-1964Clause-5 Hazen 12 Smell : Unobjectionable3 TSS APHA 20 Edn. 2540 D mg/l <104 Turbidity APHA 20 Edn.2130B NTU 2.85 pH value at 25º C APHA 20 Edn.4500H+B …… 7.46 Conductivity at 25˚ C APHA 20 Edn 2510 B µs/cm 590
7Colloidal Silica as SiO 2
APHA 20 Edn. 4500 -SiO2C
mg/l< 0.1
8 Total Dissolved Solids APHA 20 Edn.2540C mg/l 3189 Volatile Solids at 550˚C APHA 20 Edn.2540E mg/l 88
10Sodium as Na
APHA 20 Edn. 3500NaB
mg/l25.1
11 Potasium as K APHA 20 Edn. 3500 KB mg/l 2.112 P - Alkalinity as CaCO 3 IS:3025(Part-23)-1986 mg/l Nil13 M - Alkalinity as
CaCO 3 IS:3025(Part-23)-1986 mg/l
28914 Silica as SiO 2 APHA 20
Edn.4500SiO2Cmg/l
14.315 Iron as Fe (Ferric) APHA 20 Edn.3500FeB mg/l <0.116 Calcium as Ca APHA 20 Edn.3500CaB mg/l 71
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17 Magnesium as Mg APHA20Edn.3500MgB mg/l 17.318 Sulphate as SO 4 IS:3025(Part-24)-1986 mg/l <519 Chloride as Cl APHA 20 Edn.4500ClB mg/l 1220 Nitrate as NO 3 APHA20Edn.4500NO3D mg/l 1.221 Nitrite as NO 2 APHA20Edn.4500-
NO2Bmg/l
<0.0222 Total Hardness as
CaCO 3 APHA 20 Edn.2340C mg/l
24923 Copper as Cu APHA 20 Edn.3111B mg/l <0.0524 Manganese as Mn APHA 20 Edn.3111B mg/l 0.11
25 Fluoride as F APHA 20 Edn.4500FD mg/l 0.3626 Phenolic Compounds APHA 20 Edn.5530C mg/l <0.00127 Mercury as Hg APHA 20 Edn.3112B mg/l <0.00128 Cadmium as Cd APHA 20 Edn. 3111 B mg/l <0.0129 Selenium as Se APHA 20 Edn.3111B mg/l <0.0130 Arsenic as As APHA 20 Edn.3114C mg/l < 0.00131 Cyanide as CN APHA 20 Edn.4500CN-
Fmg/l
<0.0532 Lead as Pb APHA 20 Edn.3111B mg/l <0.0533 Zinc as Zn APHA 20 Edn.3111B mg/l < 0.0534 Aluminium as Al APHA 20 Edn.3111D mg/l <0.03
35 Boron as B APHA 20 Edn 3500 -BC mg/l <1.036 Barium as Ba IS : 13428 : Annex F mg/l <0.137 Free Carbondioxide APHA 20 Edn.4500 -
CO2C mg/l 0.88
38 Carbonate as CaCO 3 IS:3025(Part-23)-1986 mg/l Nil39 biCarbonate as CaCO 3 IS:3025(Part-23)-1986 mg/l 28940 Sulphide as S - APHA20Edn.4500 S B mg/l <0.141 Sulphide as H2S APHA20Edn.4500 S B mg/l < 0.142 Ammoniacal Nitrogen APHA 20 Edn. 4500
NH3Fmg/l
<0.0143 Ammonia as NH 3 APHA 20 Edn. 4500
NH3Fmg/l
<0.0144 BOD IS : 3025 (Part - 44) -
1993mg/l
<5.045 COD APHA 20EDn 5220 B mg/l <5.046 Dissolved Oxygen IS : 3025 (Part - 38) mg/l 6.247 Total Chromium as Cr APHA 20 Edn. 3111 B mg/l <0.0548 Nickel as Ni APHA 20 Edn. 3111 B mg/l <0.0549 Lima as CaO APHA 20 Edn.3500CaB mg/l 99.450 Iron as Fe(Ferrous ) APHA 20 Edn.3500FeB mg/l <0.151
Nitrate Nitrogen as NAPHA 20
Edn.4500NO3Dmg/l
0.27152 Total Dissolved
Phosphate as Po 4 < 0.003
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53 Total Fixed Solids APHA 20 Edn.2540E mg/l 23054 Oxygen absorbed (Tide's
test) NilNote :Minimum Detection Limit of TSS - 10mg/l,Colloidal Silica - 0.1mg/l, Iron - 0.1mg/l,Sulphate -5.0mg/l,Nitrate - 0.02mg/l,Cu - 0.05mg/lPhenolic Compounds - 0.001mg/l, Mercury - 0.01mg/l,Cd - 0.01mg/l,Se - 0.01mg/l,ChromiumHexavalent - 0.01mg/l, As - 0.001mg/l,CN - 0.05mg/l,Lead - 0.05mg/l,Al - 0.03mg/l,Zinc - 0.05mg/l,B - 1.0mg/l,Ba - 0.1mg/l,Sulphate as S -0.1mg/l, H2S - 0.1mg/l,Ammonical Nitrogen - 0.01mg/l,Ammonia - 0.01mg/l,BOD - 5.0mg/l,COD - 5.0mg/l,Cr - 0.05mg/l,Ni- 0.05mg/l,Iron(Ferrous) - 0.1mg/l,& Total Dissolved Phosphate - 0.003mg/l.
ANNEXURE – 02 – Return Condensate Analysis Reports
CONDENSATE WATER ANALYSIS ( as per Contract Annexure page no 12 OF 468 )
TEST REPORT of CONDENSATE WATER as per ITC email dated 14.03.2011Date : 12.03.2011 & Time 9=00 am
PM1 PM3 PM4 pH 8.56 8.95 8.78
TDS ppm 2.7 2.4 2.2
Conductivitymicrosiemens/cm
4.5 3.5 3.3
Hardness ppm Nil Nil Nil
SiO2 ppm Nil Nil Nil
TSS of Composite of PM1,PM3 & PM4 =>11 ppm
Date : 12.03.2011 & Time 10=45 am PM1 PM3 PM4
pH 8.45 8.90 8.76
TDS ppm 2.8 2.4 2.3
Conductivitymicrosiemens/cm
4.2 3.4 3.2
Hardness ppm Nil Nil Nil
SiO2 ppm Nil Nil Nil
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TSS of Composite of PM1,PM3 & PM4 =>12 ppm
If any wide variation in water analysis is observed during contract execution stage resulting in
addition / enhancement of any equipment the same shall be at additional cost.
SAMPLE DRAWN BY US :No. W(D)/11-12/687 Date : September 01, 2011 Page 1 of 2Issued to : M/S I.T.C. LTD.
: P.S.P.D., Unit Tribeni, Chandrahati, Hooghly.Your Ref. No. : Letter dtd. 19.08.2011Sample Description : WaterCollection Source : Condensed Water at Paper Machine.Sample Collected on : 19.08.2011Analysis Completed on : 29.08.2011
Method of Sampling: IS : 1622 : 1981 & IS : 3025 (Part -1) - 1987
Mode of Sampling : GrabA. Microbiological Test Findings :Sl
No.Test parameters Test Method Unit Results
1 ColiformOrganism/100ml
APHA 20 Edn. 9222 BCFU < 1
2 E. coli/100ml APHA 20 Edn.9222 D CFU Absent3 TVC IS:5402:2002 CFU 24 Sulphate Reducing
BacteriaIS:13428:1998 Annex - 6
AbsentB. Physical Test Findings:
1. Appearance when analysed : Clear. 2.Appearance After Filtration : Clear.C. Chemical Test Findings:Sl
No.
Test parameters Test Method Unit Results
1 Colour: IS:3025-1964Clause-5 Hazen 12 Smell : Unobjectionable3 TSS APHA 20 Edn. 2540 D mg/l <104 Turbidity APHA 20 Edn.2130B NTU < 15 pH value at 25º C APHA 20 Edn.4500H+B …… 7.16 Conductivity at 25˚ C APHA 20 Edn 2510 B µs/cm 77
Colloidal Silica as SiO 2 APHA 20 Edn. 4500 -
SiO2Cmg/l
< 0.18 Total Dissolved Solids APHA 20 Edn.2540C mg/l 49 Volatile Solids at 550˚C APHA 20 Edn.2540E mg/l < 4
10 Sodium as Na APHA 20 Edn. 3500NaB mg/l < 111 Potasium as K APHA 20 Edn. 3500 KB mg/l < 1
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12 P - Alkalinity as CaCO 3 IS:3025(Part-23)-1986 mg/l < 213 M - Alkalinity as
CaCO 3 IS:3025(Part-23)-1986 mg/l
< 214 Silica as SiO 2 APHA 20
Edn.4500SiO2Cmg/l
1.115 Iron as Fe (Ferric) APHA 20 Edn.3500FeB mg/l <0.116 Calcium as Ca APHA 20 Edn.3500CaB mg/l < 117 Magnesium as Mg APHA20Edn.3500MgB mg/l < 118 Sulphate as SO 4 IS:3025(Part-24)-1986 mg/l <519 Chloride as Cl APHA 20 Edn.4500ClB mg/l < 2
20 Nitrate as NO 3 APHA20Edn.4500NO3D mg/l < 0.121 Nitrite as NO 2 APHA20Edn.4500-NO2B
mg/l<0.02
22 Total Hardness asCaCO 3
APHA 20 Edn.2340C mg/l1
23 Copper as Cu APHA 20 Edn.3111B mg/l <0.0524 Manganese as Mn APHA 20 Edn.3111B mg/l < 0.0525 Fluoride as F APHA 20 Edn.4500FD mg/l < 0.126 Phenolic Compounds APHA 20 Edn.5530C mg/l <0.00127 Mercury as Hg APHA 20 Edn.3112B mg/l <0.00128 Cadmium as Cd APHA 20 Edn. 3111 B mg/l <0.01
29 Selenium as Se APHA 20 Edn.3111B mg/l <0.0130 Arsenic as As APHA 20 Edn.3114C mg/l < 0.00131 Cyanide as CN APHA 20 Edn.4500CN-
Fmg/l
<0.0532 Lead as Pb APHA 20 Edn.3111B mg/l <0.0533 Zinc as Zn APHA 20 Edn.3111B mg/l < 0.0534 Aluminium as Al APHA 20 Edn.3111D mg/l <0.0335 Boron as B APHA 20 Edn 3500 -BC mg/l <1.036 Barium as Ba IS : 13428 : Annex F mg/l <0.137 Free Carbondioxide APHA 20 Edn.4500 -
CO2C mg/l 0.88
38 Carbonate as CaCO 3 IS:3025(Part-23)-1986 mg/l 1.039 biCarbonate as CaCO 3 IS:3025(Part-23)-1986 mg/l 1.040 Sulphide as S - APHA20Edn.4500 S B mg/l <0.141 Sulphide as H2S APHA20Edn.4500 S B mg/l < 0.142 Ammoniacal Nitrogen APHA 20 Edn. 4500
NH3Fmg/l
<0.0143 Ammonia as NH 3 APHA 20 Edn. 4500
NH3Fmg/l
<0.0144 BOD IS : 3025 (Part - 44) -
1993mg/l
<5.045 COD APHA 20EDn 5220 B mg/l <5.046 Dissolved Oxygen IS : 3025 (Part - 38) mg/l 5.947 Total Chromium as Cr APHA 20 Edn. 3111 B mg/l <0.05
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48 Nickel as Ni APHA 20 Edn. 3111 B mg/l <0.0549 Lima as CaO APHA 20 Edn.3500CaB mg/l 0.5650 Iron as Fe(Ferrous ) APHA 20 Edn.3500FeB mg/l <0.151
Nitrate Nitrogen as NAPHA 20
Edn.4500NO3Dmg/l
< 0.152 Total Dissolved
Phosphate as Po 4 < 0.00353 Total Fixed Solids APHA 20 Edn.2540E mg/l < 454 Oxygen absorbed (Tide's
test) Nil
Note :Minimum Detection Limit of TSS - 10mg/l,Colloidal Silica - 0.1mg/l, Iron - 0.1mg/l,Sulphate -5.0mg/l,Nitrate - 0.02mg/l,Cu - 0.05mg/lPhenolic Compounds - 0.001mg/l, Mercury - 0.01mg/l,Cd - 0.01mg/l,Se - 0.01mg/l,ChromiumHexavalent - 0.01mg/l, As - 0.001mg/l,CN - 0.05mg/l,Lead - 0.05mg/l,Al - 0.03mg/l,Zinc - 0.05mg/l,B - 1.0mg/l,Ba - 0.1mg/l,Sulphate as S -0.1mg/l, H2S - 0.1mg/l,Ammonical Nitrogen - 0.01mg/l,Ammonia - 0.01mg/l,BOD - 5.0mg/l,COD - 5.0mg/l,Cr - 0.05mg/l,Ni- 0.05mg/l,Iron(Ferrous) - 0.1mg/l,Total Dissolved Phosphate - 0.003mg/l,Volatile Solids - 4.0mg/l,Na - 1.0mg/l,K - 1.0mg/l,p-Alkalinity- 2.0mg/l,m-Alkalinity - 2.0mg/l,
Ca - 1.0mg/l,Mg - 1.0mg/l,Cl - 2.0mg/l,Nitrate - 0.1mg/l,Nitrite - 0.02mg/l,Nitrate Nitogen -0.1mg/l&Total Fixed Solids - 4mg/l.