... In today s world, our water supply is being polluted faster than nature can purify it. Ground water contamination is evident in every part of the world. Contaminants such as heavy metals, pesticides, bacteria and viruses are commonplace in public and private water supply sources. Chemicals used to keep these water sources free of bacteria and viruses are creating serious health concerns and damaging our environment. Chlorine and its by-products have been linked t...