Nanotechnology in Cleaning Water
5 May 2008The quality of drinking water is a major problem across the globe and especially in the developing countries. Researchers at Ian Wark Research Institute, University of South Australia have used nanotechnology for removing toxic chemicals, viruses and bacteria from potable water.
Peter Majewski and Chiu Ping Chan have used tiny particles of silica coated with active material for removing hazardous materials including toxic chemicals from water more effectively and efficiently than the conventional purification method. The research finding has been published in the International Journal of Nanotechnology.
Researchers used self-assembly process for coating a nanometer thin layer of hydrocarbon based active material having silicon containing anchor on silica particles and these active particles also known as Surfaced Engineered Silica (SES) were later studied for their efficiency to remove pathogens from drinking water. The results indicate that after stirring the active coated particles in the contaminated water for one hour and filtering the powder, the organic species were completely removed.
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