Project Brief This project is designed for the towns of Sambhar and Phulera, in the state of Rajasthan, as a cluster. Sambhar has a population of around 22,000. Phulera, with a population of around 24,000, was declared open defecation free (ODF) in 2018.

Salient FeaturesSource of faecal sludge: Pits and Septic tanks Design capacity: 20,000 liters/day Population Covered: 55,413 (projected population for 2027)TS inlet Quality: 45,000- 60,000 mg/lInfluent quality: BOD= 3,500 – 20,000 mg/L COD= 9,000 – 40,000 mg/LEffluent Quality: BOD= <30 mg/l COD= <100 mg/lFaecal coliform per 100 mL: <100 MPN/100 ml

Project Speci��cationsFunding Agency: Asian Development Bank under the Rajasthan Urban Infrastructure Development Project (RUIDP)Implementing Agency: IPE GlobalTechnical partner: CDD Society Implementation Cost: Rs.2.8 croresOperation and Maintenance Cost: Rs. 8.5 lakhs/yearYear of commissioning: January 2020

Modules Adopted

Both towns lack a sewerage network for wastewater management and hence blackwater from toilets is collected in on-site containment units, such as pits or septic tanks.

Rajasthan Urban Infrastructure Development programme (RUIDP), with financial support from The Asian Development Bank and The Bill and Melinda Gates Foundation, has chosen Sambhar-Phulera as a pilot to implement and demonstrate a town-wide Faecal Sludge Management Plan. This has resulted in a 20 KLD per day capacity treatment plant being built.

CDD Society supported the project by taking care of design engineering, construction monitoring and commissioning.

Project Outcomes• To ensure effective treatment of faecal sludge • To demonstrate reuse potential of end products• To demonstrate possible operational model for strengthening the FSM ecosystem in the state

Reuse Options• The treated effluent from the collection tank is reused for landscaping at the FSTP• The produced bio-solids will be used in agriculture/ landscaping

Components Area of Construction

Screen Chamber 23.76 m

Stabilisation Reactor2

66 m

Integrated settler and

ABR with AF

226 m

Planted Gravel Filter286 m

Solar Drying Bed 220 beds of 43.4m2each (~868 m

Collection Tank 222.4 m

Build Up Area2

2,300 m

Faecal Sludge Treatment Plant - PHULERA & SAMBHAR (Cluster)

Consortium for DEWATS Dissemination Society | Bangalore

Survey No.205 (Opp. Beedi Workers Colony),Kommaghatta Road, Bandemath Kengeri Satellite Town,Bangalore 560 060, Karnataka, India.

+91-80-28486700 bangalore@cddindia.org/CDDSociety

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S. No Module Treatment Objective

1 Screen and Grit chamber Removes inert and large size particles consisting of solid waste and silt

2 Stabilisation reactor (SR) Anaerobic digestion of sludge for reducing organic pollutants and increasing dewaterability

3 Sludge drying bed Dewatering the sludge and reduce pathogen content

4 Collection Tank 1 Collect the percolate from the SDB and pump further for treatment

5 Settler (ST) Sedimentation of settleable solids in the percolate

6 Anaerobic filter (ISAF) Anaerobic treatment of percolate

7 Planted gravel filter (PGF) Secondary treatment of percolate to reduce suspended solids, nutrients and organic pollutants

8 Sand Carbon Filter (SCF) Tertiary treatment of the percolate from the PGF

9 Collection Tank 2 Store the treated water and reuse it for the landscaping