date:Jul 22, 2013
can benefit communities living in places where there is little electricity or resources to set up a water purification plant.
Scarcity of clean water
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.
Many hazardous pollutants enter the water supply through many channels, including waste disposal, industry effluent release or rain water