New Technology for Decontaminating Arsenic-laced Water
According to researchers, removing arsenic from drinking water now can be done by using crystals of a rust compound - and a magnet.
The researchers developed crystals as small as 12 nanometers wide using nanotechnology. These crystals then were mixed with contaminated water. After some time, they found that the crystals were coated with arsenic and were acting like iron filings; the contaminants then were removed with the help of a strong magnet. When the water was tested, it was found to be well within the international safety limits.