Question raised in Lok Sabha on Sewage Treatment Plants, 08/03/2016. As per the report published by Central Pollution Control Board (CPCB) in March, 2015, the sewage generation from urban areas in the country is estimated at around 62,000 million litres per day (mld), whereas the total sewage treatment capacity available is only 23,277 mld, or 37% of the sewage generation. The State-wise details of sewage generation from urban areas and corresponding treatment capacity available is at Annexure-I.

Question raised in Lok Sabha on Management of Sewage, 24/02/2016. The quantum of sewage generated from Class - I Cities and Class - II Towns is 38254.82 million litres per day (MLD) out of which only 11787.38 MLD (31%) is being treated and the remaining 26467.44 MLD is disposed into the water bodies without any treatment. The city wise details at Annexure-I. The various technologies being used in sewage treatment plants are Activated Sludge Process (ASP), Membrane Bio Reactor (MBR), Sequential Batch Reactor (SBR), Oxidation, Anaerobic Digesters etc.