Health, clean water: A study by Organisation for Economic Co-operation and Development says that every rupee invested in clean water in India can yield 4-12 rupee of economic return. In India, about 1.4 million children die from diarrheal diseases every year because of usage of contaminated water. Aquifers, or underground water, provide 85% of drinking water, but 56% of the country is facing a drop in the water levels. People are aware of the dangers of contaminated water, but usually, do not have the resources to obtain clean drinking water. The fuel needed to boil water is not affordable and sustainable whereas running RO system at home is expensive. For every litre of potable water produced, the RO purifier dumps 3-4 litres of wastewater.
Sustainable Livelihood Initiative India Private Limited offers 'Vardan' Water Purifier which is an extremely affordable and sustainable solution to the global problem of water purification. It purifies water under 8 paisa per litre. It works without the need for any external energy and purifies water for at least 10 years without the need for any maintenance. This is achieved by the use of Graphene and Solar Cells. The technology that powers the Ultraviolet (UV) Germicidal light used is termed as Dye Sensitized Solar Cell. It uses no complex membranes or moving mechanical parts. No wastage of water like RO filters and it is powered by Solar Cells made from e-waste. The product is in the last stage of development.
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