India – Bangalore – BWSSB plans mega water treatment plant

BANGALORE: Bangalore Water Supply and Sewerage Board (BWSSB) will construct the country’s second biggest water treatment plant at Torekadanahalli (TK Halli) to supply drinking water to the city under Cauvery IV stage II phase project.

BWSSB will be supplying 500 million litres per day (MLD) under Cauvery IV stage II phase and the water treatment plant will have a capacity to purify 500 MLD of water. Delhi Jal Board has constructed three water treatment plants of 550 million litres capacity.

Raw water from Cauvery river will be pumped from Shiva Anicut to TK Halli, which is at a distance of 18.5 km, through open channel and steel pipeline. The water will be purified and treated at TK Halli and will be pumped to the city in three phases, after treatment.

Nine working pumps and five standby pumps of high pumping capacity will be installed at TK Halli, Harohalli and Tataguni to pump water to the city, which is 98 km away from TK Halli. These pumps will be regulated with the supervisory control and data acquisition system.

The water will be pumped to the city in a steel pipeline of diameter 2700 millimetre and the water will be directed to six different ground level reservoirs (GLR) that are to be constructed at Jambu Savari Dinne, Uttarahalli, Parappana Agrahara, Gandhi Krishi Vignan Kendra, OMBR and Hudi.

These GLRs will have a collective storing capacity of 147 million litres of water and will help in regulating and diverting water to different parts of the city through 40 GLRs that are already existing and nine GLRs that will be constructed with aid from Bangalore Development Authority at different parts of the city.

All the aforesaid works will be undertaken under Cauvery IV stage II phase and will be jointly funded by Japan government and state government.

One of the BWSSB officials said, “Some of these works are yet to commence. If everything goes according to the plan, they should be completed by the end of 2012.”

By N R Madhusudhan –

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