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Odisha School Girl wins Google Science Fair in 13-15 Age Category of Community Impact Award

Lalita Prasida Sripada Srisai, a 13-year-old student of class 9th in DPS Damanjodi in Koraput district of Odisha, has made India proud by winning the ‘Community Impact Award’ at the prestigious Google Science Fair in California on Tuesday. Winning the award in the 13-15 years age group, she received 10, 000 USD as the prize money. She is also set to be supported by Google for a year to build her project. Lalita developed a low cost bio-absorbent based water purifier. It functions mainly on waste corn cobs. The Corn cob is the least utilized part of the maize plant. It is a very important agricultural waste. Having high mechanical strength, rigidity and porosity, corn cob is a suitable absorbent. This enables contaminants like oxides of salts, detergent, suspended particles, coloured dyes, oil and grease to be absorbed in the surface of the corn cobs. Some of the heavy metals are also absorbed.
About Low Cost Bio-Adsorbent: Aquatic ecosystems support various life forms. Discharge of contaminants into water bodies is a matter of concern all over the World. Thus, the waste water released from different sources should be purified at source. This project aims to clean waste water by flowing through different layers of corn cobs like long pieces of corn cobs, small pieces of corn cobs, powdered corn cobs, activated charcoal made from corn cobs and fine sand. This is a cost-effective and simple technique. This is useful for immobilizing the contaminants in domestic and industrial effluents, and in ponds, reservoirs and water tanks."
Check complete list of winners at : https://www.googlesciencefair.com/en/