Govt initiates new sewage project to clean up Yamuna

“Around 70 per cent of pollution in the river will be reduced with this project.”

By: Express News Service | New Delhi | Published: June 25, 2014 2:39 am

In a step to check pollution levels in the Yamuna, Delhi government on Tuesday said that it has undertaken a comprehensive interceptor sewer project to ensure that water from drains is treated before being discharged into the Yamuna.

“Around 70 per cent of pollution in the river will be reduced with this project,” a statement issued by Lt-Governor Najeeb Jung’s office said.

Assisting with the clean-up project, Delhi Jal Board (DJB) has prepared a Sewerage Master Plan 2031 and is in the process of laying sewerage systems in areas which do not have sewer lines. DJB will set up a 59-km-long interceptor sewer along three major drains (supplementary, Najafgarh and Shahdara) to intercept sewage from around 190 subsidiary small drains and transport it to the nearest sewage treatment plant (STP).
This will ensure that only treated effluents are discharged into the drains.

The interceptor sewer between Aruna Nagar JJ cluster up to the outfall of Khyber Pass drain, which intercepts untreated sewage from Sweeper Colony, Magazine Road and Khyber Pass drain, will be  functional by June 2015. The discharge intercepted from these drains will be pumped to Nigam Bodh sewage pumping station (SPS) and taken to Okhla STP, which has a treatment capacity of 170 million gallons per day (MGD).

Effluents from Metcalf House, Qudsia, Mori Gate, Tonga Stand and Civil Military drains will be intercepted into the Ring Road trunk sewer, which was recently rehabilitated under Yamuna Action Plan-II. Sewage collected from these drains will be pumped to Okhla STP through Ring Road SPS. The work will be completed by June next year.

“The new STPs at Pappankalan, Nilothi, Delhi Gate, Chilla and Kapashera have been designed  to achieve high standards to treat effluents, with Bio Oxygen Demand (BOD) below 10 and Suspended Solids (SS) below 10 PPM,’’ a DJB official said.

“Due to the expansion of the city, with more than 1,600 unauthorised and regularised colonies, 189 rural villages and its extensions, and more than 1,000 JJ clusters, sewerage facilities could not be provided in many areas due to legal and institutional constraints. Consequently, untreated sewage is being discharged into storm water drains and then into the Yamuna, thereby, polluting it,” an official said.

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