Mumbai Launches ₹26,000 Cr Sewage Treatment Drive To Clean Coastline And Generate Power
Seven Mega STPs To Treat 2,464 MLD Wastewater Daily, Improve Sea Quality And Produce Electricity From Biogas
Mumbai, July 22 – In a major leap toward coastal environment protection, the Brihanmumbai Municipal Corporation (BMC) is executing a ₹26,000-crore sewage treatment plan that will build seven new state-of-the-art Sewage Treatment Plants (STPs) across Mumbai. These facilities will collectively treat 2,464 million litres per day (MLD) of wastewater and generate electricity from biogas, marking a new era in urban sustainability.
Under the leadership of BMC Commissioner and Administrator Bhushan Gagrani and the direction of Additional Commissioner (Projects) Abhijit Bangar, the projects are making rapid structural progress, according to BMC’s Sewerage Operations Department. All seven projects feature tertiary-level treatment systems, an upgrade from conventional primary and secondary methods.
Locations And Capacities
The STPs are being constructed at:
- Worli – 500 MLD
- Bandra – 360 MLD
- Malad – 454 MLD
- Ghatkopar – 337 MLD
- Dharavi – 418 MLD
- Bhandup – 215 MLD
- Versova (Vesave) – 180 MLD
Together, they will serve vast zones including Fort, Dadar, Andheri, Bandra-Kurla Complex (BKC), Goregaon, Ghatkopar, Chembur, Mulund, and more, benefiting millions of residents.
Technology And Green Energy Integration
The new STPs are equipped with Membrane Bio Reactor (MBR) and Sequential Batch Reactor (SBR) technologies. These ensure higher-quality effluent and cleaner discharge into the sea. In addition, biogas produced from sludge will be harnessed to generate clean electricity, while residual sludge will undergo Grade-A processing for safe disposal or reuse.
Current Status
Each of the seven STPs is in various stages of construction:
- Ghatkopar STP has achieved 42% physical progress
- Bhandup – 51.3%
- Worli – 34.4%
- Bandra – 34.78%
- Dharavi – 33.4%
- Versova – 32.15%
- Malad – 28%
The BMC confirmed that rainy season construction has been planned and all facilities are scheduled to complete within five to six years, with an additional 15-year O&M (Operation & Maintenance) period under contractor agreements.
The BMC has partnered with major firms like SUEZ Water Technologies, L&T, DRN Infrastructure, NCC, and Tata Consulting Engineers for design, execution, and technological support.
During a site inspection at Worli and Bandra STPs on July 22, senior engineers showcased detailed project models and computer presentations to media representatives, emphasizing the marine outfalls and containerized STP systems that provide construction water on-site.
Officials noted that this massive sewage infrastructure overhaul will significantly improve marine life, sea water quality, and reduce untreated discharge into the Arabian Sea, aligning with global environmental benchmarks.