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Trial run of new Cauvery plan held

Published: 15th September 2012 08:43 AM  |   Last Updated: 15th September 2012 10:18 AM   |  A+A-

15new
By ENS

The trail run of water from Cauvery IV Stage II Phase project was conducted at Zero Discharge Point in Shiva Balancing Reservoir (SBR) on Friday.

 The project will bring an additional 500 million litres a day (MLD) to the city, mainly to the residents of earstwhile City Municipal Councils Rajarajeshwarinagar, Dasarahalli, Bommanahalli, Krishnarajapuram, Mahadevapura, Byatarayanapura, Yelahanka and Kengeri.

 At present, the city gets 900 MLD of water from Cauvery I, II, III and IV Stage, Phase I project. The raw water drawn from SBR built across Cauvery River is conveyed to TK Halli through 3,000 mm diameter pipes for a distance of 16.5 km, through gravity.

Once the water reaches T K Halli, it will be treated by Dissolved Air Flotation (DAF) technology at one of the biggest water treatment plants.

In this method, tiny air bubbles will be injected into the raw water.

Particles in the water adhere to the bubbles and float to the surface creating a layer of froth, which will be removed intermittently.

Later, the treated water is supplied to Bangalore City through three-stage pumping at TK Halli, Harohalli and Tataguni. Each pump house has 3,100 HP capacity motor pumps. About 1.50 lakh tonnes of steel has been used for laying the 174 km long pipeline. All the pipes will be cleaned with bleaching powder and disinfected. On reaching the city at Vajarahalli on Kanakapura Road, water will be diverted into seven ground level reservoirs inside the city. Earlier, in an Express report Law and Parlimentary Affaris Minister S Suresh Kumar said, “By mid-October, 300 MLD of water through Cauvery IV Stage Phase II project will be supplied and 500 MLD by November end."

He said on Friday the project was dedicated to Sir M Visveswaraya whose birthday is celebrated as Engineer’s Day on September 15.



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