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Slow sand filter

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[[Image:Jal-TARA filter.jpg|thumb|right|150px| Jal-TARA filter]]

The Jal-TARA water treatment employs the technique of slow sand filtration (SSF). SSF ensures a simultaneous bacteriological and physical improvement in water quality comparable to the natural percolation of water through underground strata. Jal-TARA is standardized in 1000 litres water tank with the output water supply of 2500 – 3000 litres per day. The filters contain pebbles and sand of different sizes. System is provided with a synthetic fabric filter designed with advanced technique of fabric protection. The system can be fed under gravity flow or through conventional pumps or operated by solar photo-voltaic.

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Filter can be easily assembled locally available material like sand, pebbles and water tank. However, fitting material can be easily transported, if not available locally.

TARA Environment Monitoring Facility also manufactures filters which employ the SSF technique. In this case, customers in addition require a water pump to fill the overhead tank and power supply to pump water into the tank - an electricity connection or generator are required.

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