Mumbai's Sewage Overhaul: 7 Plants to Clean Sea

The Brihanmumbai Municipal Corporation (BMC) is undertaking a significant project to upgrade its sewage treatment capabilities. BMC Commissioner Ashwini Bhide recently inspected the under-construction 454 million litres per day (MLD) Malad Sewage Treatment Plant (STP). She directed contractors to ensure all seven STPs across Mumbai are completed within their stipulated timelines, highlighting their importance for improving wastewater quality discharged into the sea.

These seven new STPs, located in Malad, Worli, Bandra, Dharavi, Ghatkopar, Bhandup, and Versova, will collectively treat 2,464 MLD of sewage. This is in addition to the 37 MLD STP at Colaba, operational since April 2020. The Malad STP, awarded in July 2022, will utilize Sequential Batch Reactor (SBR) technology for secondary and tertiary treatment, treating 454 MLD daily. It will also incorporate sludge treatment to Class A standards and generate electricity from biogas.

Once commissioned, these projects are expected to greatly benefit residents in western suburbs like Dahisar, Borivli, Kandivli, Malad, and Goregaon. The improved treatment processes are anticipated to significantly enhance coastal water quality and positively impact marine ecology, marking a crucial step towards a cleaner Mumbai.