Kasegaon Education Society’s

RAJARAMBAPU INSTITUTE OF TECHNOLOGY, (An Autonomous Institute)

Rajaramnagar, Dist. Sangli, Maharashtra, India

Meeting of Participatory Institutions for evaluation of Technical Projects in adopted villages

Low Cost Sewage Treatment Plant in Hajarwadi

By

Prof. S. S. KumbharLHC- 213 IIT Delhi

16th – 17th November July, 2018

❑CONTENT

➢Introduction & Problem statement

➢Objective of technology

➢Design of constructed wetland treatment

➢Work plan

➢Benefits to villages

➢Expected outcomes

➢Timeline of the project

• Hazarwadi

• POPULATION : 1249

HH – 270

• Ref: Census 2011

• LOCATION: Bk : Palus

Dist. : Sangli

*UBA 2.0 : Hajarwadi

• No any special provision for

disposal of sewage

• Absence of sewage treatment

plant

• Open sewage disposal leads

to pollution and health

problems.

*Problem Statement

• Environmental Services• Water • Sewage & Sanitation• Solid Waste Mgt.• Air Quality

• Housing Planning

*Role of RIT

• Principle

Rhizomes of the reeds grow vertically and horizontally in the soil or gravel bed, opening up

'hydraulic pathways'.

• Objectives of Technology

- To provide low cost sewage treatment in village

- To remove BOD by anaerobic bacterial treatment

- To remove Suspended solids in the sewage by aerobic treatment

- To remove the Nutrients and heavy metals by plant uptake

*CWTS Treatment Technology

• plants are grown directly on an impermeable surface to which a thin film of wastewater is continuously applied

• Various Type of plants• Forage Kochia Kochia spp• Poplar Trees Populus spp• Willow Trees Salix spp• Alfalfa Medicago sativa• Cattail Typha latifolia• Coontail Ceratophyllum demersvm L• Bullrush Scirpus spp• Reed Phragmites spp.• American pondweed Potamogeton nodosus• Common Arrowhead Sagittaria latifolia

*Nutrient Film Technique …NFT

• Pollutant Performance (% removal)

• Total suspended solids 85 – 95

• Biochemical oxygen demand 80 – 90

• Chemical oxygen demand 80 – 95

• Total nitrogen 60 – 80

• Phosphate 60 – 80

• Fecal coliform >99

Treated water quality will meet the specifiednorms of CPCB/MPCB for water reuse

*Outlet Analysis

• Site Location –

• Area required– 70m2

• Soil Excavation – 10*2*1 = 20 * 3 m3

= 60 m3

• Civil Work – Soil Compaction

• Tank size (3) = 10*2*1

• Pipe Connections

• Plantation

Ref: USEPA

*Schematic Plant layout

*Work Plan

Sr. No Activity Timeline

1 Survey of Hajarwadi village November 2018

2 Study of water supply and sewage collection system in

Hajarwadi

November 2018

3 Physio-chemical analysis of Sewage December 2018

4 Design of CWTS plant December 2018

5 Approval and permission of government department December 2018

6 Site cleaning and Levelling December 2018

7 Excavation January – march 2019

8 Compaction of soil layer April 2019

9 Provision of boulders and sand layer April 2019

10 Plantation May 2019

11 Sewer line connections and outlet treated waste

agriculture use

May 2019

12 Plant harvesting and general maintenance May 2019

• Cost-effective

• Operation and maintenance expenses are negligible.

• Minimum electricity requirement

• Smaller footprint (Retention time: Typically less than 24 hrs.)

• Facilitates recycle and reuse of water

• No foul odor and No Mosquito Nuisance.

• Tolerates fluctuations in operating conditions such as flow, temperature and pH

*Benefits to Village

• Effective Treatment

• Use of treated waste

• Effective to reduce harmful effects on environment

• Student and staff Learning

• Cost effective technology for sewage

• Recycle and reuse of treated waste

• Clean Sanitation practice method

• Nutrient management

*Expected Outcomes

*Project Timeline and Budget

Activity Month

January February March April May June

Plant site Excavation

Soil compaction and

provision of boulder

& sand layer

Pipe fitting and

plantation

➢Duration : 6 Months

Sr. No Activity Total cost in Rs.

1 Survey of land 2000

2 Site cleaning and Levelling 5000

3 Excavation 20000

4 Compaction of soil layer 3000

5 Provision of boulders and sand layer 8000

6 Plantation 6000

7 Sewer line connections and outlet treated waste

agriculture use

6000

8 Plant harvesting and general maintenance 5000

Variation in budget +/- 10%

Total cost 55000/-

➢Budget

*THANK YOU