world’s first Low cost and efficient water purification techniques


Water is an important part of all living organism in the universe .Without water no one can survive.Water is everywhere, but the major risk is that ,source of clean water is disappearing day by day. This is one of the crucial problem affecting the entire world ..The scarcity of clean water is expected to worsen in the future due to over usage, lack of conservation methods and dwindling natural supply of clean water, even in countries with significant water resources.The only solution for this crisis is water purification.There are a lot of water purification methods and water purifying products, but these methods and products are expensive that will never help economically and technologically disadvantaged communities.

Taking this as an inspiration to make clean water available at low cost,One Indian origin Researcher Mr Ramakrishna Mallampati, a PhD candidate at the National University of Singapore (NUS), experimented with water treatment techniques using  materials that are easily available, and came up with novel ways to purify water using the peels of apples and tomatoes.This is the first time  that the peels of the two fruits have been used to remove different types of pollutants in water. The studies were conducted under the guidance of Associate Professor Suresh Valiyaveettil also an Indian of the Department of Chemistry at the NUS Faculty of Science.This research will help  communities living in places where there is little electricity or resources to set up a water purification plant.The challenge for scientists is to develop robust water purification methods that could carry out water treatment at low cost, with minimal energy consumption and using less chemicals in the process so as to reduce the negative impact on the environment. Tomato is the second most consumed vegetable in the world  The disposal of the tomato skin and its other fibrous materials is an economic waste for many food processing industries.Mr Ramakrishna Found that  tomato peel is an effective adsorbent by using different pollutants. He also studied the structure of the tomato peels to assess their efficiency as bio materials to remove toxic metal ions and organic pollutants from water. His study revealed that tomato peels can effectively remove different contaminants in water including dissolved organic and inorganic chemicals, dyes and pesticides, and they can also be used in large scale applications.

Apple peel can also remove a range of dissolved water pollutants through the absorption process.In order to enhance the ability of apple peels towards extraction of negatively charged pollutants, Mr Ramakrishna immobilized naturally occurring zirconium oxides onto the surface of apple peels. Zirconium loaded apple peels were found to be able to extract anions such as phosphate, arsenate, arsenite, and chromate ions from aqueous solutions. This method of water purification can also be used for large scale applications. The researchers hope that  the findings on the use apple and tomato peels for water purification can be applied  benefit economically and technologically disadvantaged farmers living in remote villages, who depend on contaminated ground water or local rivers for their daily water needs This is not a complete purification method but it will help to remove most of the pollutants from water

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