Bengaluru power generating waste water plant stands as an inspiration to other states
September 06, 2019

Bengaluru power generating waste water plant stands as an inspiration to other states

India's had already taken the maiden step towards converting power out of waste ambitions when Chief Minister Siddaramaiah initiated the STP of 60 million liters per day (MLD) capacity in the Koramangala-Challaghatta Valley in 2017, which decreases sewage overflow into the excessively polluted Bellandur Lake by at least 120 MLD.

Bengaluru's first sewage treatment plant (STP) that also produces 1 MW power utilizing a biogas engine within the plant. This initiative by Bengaluru is an inspiration to other states of India that severely suffers from pollution and scarcity of drinking water.

The state-of-the-art plant traps usefully all the sewage generated by areas between Kanakapura Road in the south and Sarjapur Road in the southeast and uses the operated sludge process with biological nutrient removal (BNR) technology to produce 1MW power.

Officials with BWSSB, which has installed the STP, said this is the first time that the water board will be using biogas to generate power. "This will be enough to meet 50% of the plant's power needs," said an official.

It was constructed with the aid of Japan International Cooperation Agency (JICA) who helped India to complete the ambitious project at an expenditure of around Rs 205-crore plant. The project involved lying of a 15km-long pipeline and 60km of electrical cable s and took three years to get completed.

Officials said that the treated water from the STP is used to fill up tanks in the parched Kolar district. The plant is furnished with the most superior machinery from across the world: Austrian gas engines, blowers from Hong Kong, pumps from Norway, diffusers from the US and submersible mixers from Sweden.

The contracting agency that constructed the plant is to be operating and handling it for seven years. The plant will process the water that is cleansed in the 10 MLD plant at Sarakki Lake and 120 MLD plant at Agara Lake, which is joined to the K and C STP through an 11 km pipe.