Sewage Generation along Yamuna
Total sewage generation from 15 cities along Yamuna river is estimated by Central Pollution Control Board (CPCB) as 5021.4 MLD, out of which 3273 MLD is treated through STPs and balance 1748.4 MLD untreated sewage discharged in the river or land. Delhi with 3800 MLD of wastewater generation and sewage treatment capacity of 2603 MLD is a major contributor for wastewater disposal into river Yamuna.
Various measures are being taken to optimize the performance of existing STPs for treatment of untreated sewage. In Delhi the major one being laying of interceptor sewer by Delhi Jal Board to augment the capacity utilization of STPs. The interceptor sewer project is an integrated approach towards zero sewage flows in the drains and the river. The other actions taken include issuing of directions by CPCB on 21/4/2015 to Delhi Pollution Control Committees, Haryana and Uttar Pradesh State Pollution Control Boards to make it mandatory for local/urban bodies to set up STPs of adequate capacity and provide underground sewerage system to cover the entire local/urban areas and to bridge the treatment gap.
CPCB has also issued directions u/s 5 of Environment (Protection) Act, 1986 to Delhi Jal Board, Municipal Corporation of Faridabad, Ghaziabad and Agra for treatment and utilization of sewage for restoration of water quality of rivers.
This information was given by Union Minister of State for Water Resources, River Development and Ganga Rejuvenation Shri Vijay Goel in a written reply in Lok Sabha today.
