Water pollution is a broad concept which encompasses the pollution of inland water sources as well as ocean bodies on the planet. While inland water sources have been turned into virtual dumping sites owing to industrial pollution, ocean bodies bear the brunt of marine transportation and oil spills. The amount of sewage waste generated by a single household may not seem much, but if we take into consideration the fact that there are millions of households, things become serious. A significant proportion of waste produced in these homes is directed to water sources without being subjected to proper treatment.