Many Indian cities have been facing scarcity of water. Draught due to lowering of underground water level has affected irrigation and lowered the availability of regular drinking water. When such is the situation Dr. Rajah Vijay Kumar, a scientist hailing from Bengaluru developed an exceptionally useful method to recycle water. The acute water crisis led him to think of an option which can easily provide water to metro cities.
He developed a device called The Boom Tube Resonator. It has the capacity of producing 100,000 litres of potable water per day from the wastes running through the sewage lines. His device has been successful in recycling pure drinking water by making the wastes undergo few processes. This is completely a chemical free technique. The sewage which mainly contains urine, wastes from industries partly gets dissolved while some remain suspended. The negative electrostatic charge in very fine pollutants drives them to be in motion. They are repelled by each other due to the same charge. When they are neutralised they combine and join together which can be easily segregated from the water. Dr. Kumar made use of waves of high intensity in order to achieve this target. India discharges large quantities of waste from the cities which are poured into the water bodies causing pollution. Instead if this could be used to derive potable water, then a large part of the water shortage can be met with.
Many countries like Singapore, Doha and Oman have shown interest in this project. They want to do it in large scale in their countries. The slurry that gets collected from this treatment can serve the purpose of fertilisers too. This endeavour is highly appreciable as it is catering to human needs besides maintaining the balance in nature. Dr. Kumar has successfully been able to meet the water requirement of his campus. As the students their get water from the Boom Resonator!
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