Bengaluru's ₹2,000 Crore Boost: 5 New STPs to Tackle Wastewater Gap

The Bangalore Water Supply and Sewerage Board (BWSSB) has proposed the construction of five new sewage treatment plants (STPs) in Bengaluru, at an estimated cost of ₹2,000 crore, to boost the city’s wastewater treatment capacity by 385 million litres per day (MLD).

Currently, BWSSB oversees a 11,894 km-long underground drainage network across 110 villages and treats approximately 2,130 MLD of sewage. However, only 34 operational STPs handle a total capacity of 1,345 MLD, leaving a significant gap in treatment capacity.

To address this, BWSSB is already building 20 new STPs with a combined capacity of 470 MLD, at a cost of ₹1,382 crore. Additionally, tenders have been floated for nine more plants totaling 140 MLD, with World Bank assistance.

Of the five newly proposed STPs, two will feature advanced single-reactor systems, designed to reduce space and energy consumption, while the remaining three will use the Activated Sludge Process (ASP) for biological wastewater treatment. The sludge byproduct from these facilities will be converted into compost, promoting sustainable waste management.

News by Rahul Yelligetti.