Treatment and reuse scope
A defined treatment capacity and planned uses for the reclaimed water, supported by the technical design.
Representative landscapeWater stewardship
Sewage water reuse in Chennai
Treatment tanks and ultrafiltration equipment installed for a modular sewage reclamation project. Trial runs and commissioning were in progress in the September 2026 update.
DELIVERY UPDATE
Equipment installed. Commissioning in progress.
Reported
The implementation update records completed treatment tanks, pumps, air blowers and ultrafiltration equipment. Trial runs and commissioning were still in progress at the reporting date.
2
Aeration tanks installed
1
Ultrafiltration plant installed
These are equipment installation milestones. Operational performance and water benefits will be assessed through commissioning, flow records and water-quality testing.
THE CHALLENGE
The need behind the project.
Untreated sewage places pressure on Chennai's water bodies and nearby ecosystems. At the same time, landscapes and communities need water for uses that do not require drinking-water quality. The project connects those two needs through treatment and planned reuse.
THE APPROACH
How the project responds.
The project is designed to rehabilitate treatment infrastructure and establish a modular sewage reclamation system. Treatment and polishing are combined with plans for suitable non-drinking applications, including irrigation. The intended use determines the water-quality requirements and operating arrangements.
SIV’S ROLE
What we bring to delivery.
SIV Impact brings together project development, implementation oversight, technical partners and coordination with relevant public agencies. The work includes defining the treatment and reuse scope, aligning delivery responsibilities and establishing how the system will be operated and monitored.
INTENDED VALUE
What the work aims to change.
The intended value is to reduce untreated sewage entering the local environment and make treated water available for appropriate non-drinking needs. Reliable operation and a practical route for reuse are central to that goal.
PROJECT SCOPE
What delivery
brings together.
Coordinated implementation
Treatment infrastructure delivery with technical and local partners, alongside site and public-agency coordination.
Operation and monitoring
Responsibilities for ongoing operation, maintenance, flow recording and water-quality testing.
PROJECT GOALS
What we are
working toward.
625 m³/day
Design treatment capacity
60 million US gallons/year
Water reclamation goal
Non-drinking reuse
Irrigation and community applications
How performance will be assessed
Performance reporting distinguishes installed equipment and design capacity from actual treated and reused volumes. Flow records and water-quality testing establish how the system performs against its intended uses. The annual water reclamation figure is a project goal, separate from the documented installation milestones.
These highlights describe project goals, design capacity and planned scope. They are not measured results.
RELATED WORK
Explore another project.
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PLANNED PROGRAM REACH15 schoolsRead case study
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Watershed work with SPECTRA to support local water security and agriculture.
ANNUAL REPLENISHMENT GOAL55 million gallons/yearRead case study
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