Waterless Washing Machine

A waterless washing machine that removes stains from garments in a few minutes has been developed at the National University of Singapore, the facility said on Wednesday. The appliance uses negative ions, compressed air and deodorants to clean clothes. Industrial design students Wendy Chua, 21, and Gabriel Tan, 23, said they were inspired by the […]

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GAC (Granulated Active Carbon)

Carbon has long been used to absorb impurities and is perhaps the most powerful absorbent known. Activated carbon is carbon which has a slight electro-positive charge added to it, making it even more attractive to chemicals and impurities. As the water passes over the positively charged carbon surface, the negative ions of the contaminants are […]

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