Plants in Villivakkam, Sholinganallur, Navalur to process nearly 240 million litres of sewage daily.

Three more sewage treatment plants would come up across the city to treat sewage generated from the ever-expanding city.

At
present, Chennai has a capacity to treat a total of 558 million litres
of sewage being generated daily in 11 units set up at six locations.
Work is on to set up sewage treatment plants with a capacity to treat
228 mld in four more spots.

The three new STPs would
come up in Villivakkam (135 mld), Sholinganallur (100 mld) and Navalur
(6 mld). Moving the demands for grants for the Municipal Administration
and Water Supply department, Minister K.P. Munusamy said that five STPs
generate power from biogas to meet their requirements. In the past seven
years, about 1.424 megawatt of electricity was saved and emission of
nearly 3.73 lakh tonnes of carbon dioxide was reduced.

He
also highlighted the sewerage infrastructure schemes being taken up in
various merged areas with the assistance from Jawaharlal Nehru National
Urban Renewal Mission and Tamil Nadu Urban Development Project.

While
water supply has started from the second desalination plant at Nemmeli,
the water agency has appointed Aecom India Private Limited along with
GHD Pty Limited, Australia, and Watek Engineering Corporation, USA, to
prepare the project report on the feasibility of a desalination plant at
Pattipulam, which is four kilometres away from the Nemmeli plant.
Unlike the existing two plants with a capacity to treat 100 million
litres of sea water a day, the proposed plant would treat 200 mld, which
could be further expanded to 400 mld.

The water
agency is also taking measures to extend the water supply to Tambaram,
Pallavaram and Pammal by laying a 22-km pipeline from Poonamallee bypass
junction to Tambaram. Work sanctioned under Infrastructure and
Amenities Fund will start soon.

Meanwhile, Metrowater
is set to complete the project to lay a second pipeline running to a
length of 6.5 km from Chembarambakkam water treatment plant to the
Poonamallee bypass junction by July next year.

This
would help transmit the entire 530 mld of drinking water that the
Chembarambakkam plant is capable of treating to residents.

Currently, 11 units in Chennai treat a total of 558 million litres of sewage at six locations.