Tuesday, December 2, 2014

TN planning to tap excess rainwater by linking storm water drains to water bodies

Chennai:

After the success of rainwater harvesting technique, Tamil Nadu
government is planning to put to use the excess rain water let out in
the storm water drains by linking it to water bodies.

Chennai Corporation sources told Express that a consultant is now
preparing a detailed project report so that the storm water drains are
linked into water bodies.

Interestingly, the state is also planning to recharge the groundwater
and Chennai Corporation has mapped the water stagnant areas during the
monsoon.

“We are looking at how the water can be utilized for ground water
recharge,” the sources added.

Meanwhile, Chennai Metro Water managing director B Chandra Mohan while
speaking at a second regional dialogue  of 15th Delhi Sustainable
Development Summit said that the special grade water treatment plant
in Perungudi to supply water for construction activities as mandated
by the state government will be ready in next few weeks.

The plant, built at a cost of Rs 56.6 lakh, would produce six lakh
litres of special grade water per day for construction purposes. “The
water supplied from the plant will help reduce the stress on ground
water resources being used for construction purposes. On an average
the city requires 20 lakh litres of water for construction purposes,”
he said.

Chandra Mohan said that while the Centre has mandated reuse of 10 per
cent of waste water, the state has already pioneered the waste water
technology and has even made a policy decision to supply treated
re-used water for industry purposes.

He said industries in the Chennai-Bangalore Industrial Corridor would
be provided with treated water only.

He expressed concern over the failure of monsoons and said the
reservoirs are 15 to 20 per cent dry due to lack of rains in catchment
areas. He said the state is now banking on waste water reuse, rain
water harvesting and desalination plants.

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