BWSSB magic: Clean water from sewage

BWSSB magic: Clean water from sewage
DH News Service, Bangalore:
BWSSB has decided to tap potable water from tanks to tackle shortage of water in the City. The Board will be setting up advanced treatment plants at all tanks, identified for the project.

Treatment of sewage water is not new for the Board.

It has been treating sewage water and the product is used for non-potable purposes. At present 40 MLD of sewage water is treated at treatment plants in Yelahanka and VV Valley. The people have been using treated water for construction purposes and gardening.

Water treated at these plants has not yet been suggested for potable purposes.

The conversion of tank water or sewage water to potable involves a series of steps. The steps include increasing quantity of dissolved oxygen in water, bringing down amount of total dissolved solids, removal of colour and odour and disinfection. The Board will be following a series of steps to achieve these objectives.

Cost factor
The project also brings down cost of production of water for drinking purposes. The Board is spending Rs 16 to bring in one kilo litre of Cauvery water to City. River water is pumped at three places. Whereas supply of water from lakes costs between Rs 12.50 to Rs 14 per kilo litre as it is pumped only once.

However, the State government has ruled out reduction in water fare for those who use treated water. Urban Development Department Principal Secretary Jyothiramalingam has said that the government cannot have two different prices in the City.