How to Purify Water - Water Purification Process Water supplied in our homes generally comes from rivers and is contaminated with suspended impurities like sand, silt, and clay; soluble impurities like salts; and also microorganisms. Water, therefore, has to be cleaned in big purification plants before it reaches our homes. The three main processes through which water … [Read more...] about How to Purify Water – Water Purification Process