Directing the waste to its useful end, The Hindu : Karnataka / Bangalore News

The Hindu : Karnataka / Bangalore News : Directing the waste to its useful end: "

In what could clean up the sewage-choked valleys of the city, the Bangalore Water Supply and Sewerage Board (BWSSB) will soon take up linking of the main sewers to its treatment plants on the outskirts of the city.Instead of being directed to a treatment plant, the city's sewage flows into stormwater drains, which are meant to carry rainwater — one key reason why flooding is common during rains.Since the stormwater drains are linked to the city's lakes and the two rivers Arkavathy and Vrishabhavathi, it has polluted these water sources and contaminated ground water.Under the Jawaharlal Nehru National Urban Renewal Mission, the water board has submitted a project report to the Union Government for approval to remodel 80 km of main sewage lines, which lie along the seven valleys of the city, for Rs. 176.75 crore.
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The treatment plant at Koramangala and Challaghatta valleys treat 120 million litres per day (MLD) of sewage when its capacity is 248 MLD. The treatment plant at Hebbal treats 35 MLD when its capacity is 60 MLD, Mr. Basavaraj said.

The treatment plant at Yelahanka works at 5 MLD when its capacity is 10 MLD and Vrishabhavthi treatment plant treats only 110 MLD when 183 MLD is its total capacity.

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