Newer Water Purification Techniques- A Review

Uncontaminated water does not occur in nature. Water gets contaminated by various gases, minerals, agricultural activities and urbanization. Various types of micro-organisms also contaminate water. Water has to undergo a purification process before it can be used for drinking purposes. Water is being purified since pre-historic times. Now-a-days water is being purified by various methods but research is being conducted to look for more reliable and cheaper methods that can purify water at an affordable cost. Various techniques have been developed like utilizing rechargeable polymer beads, seeds of Moringa Oleifera tree, aerobic granular sludge technology, resin based treatment and two-pronged water treatment technology. All these techniques can generate pure water. It is hoped that in coming times every person on this planet will be consuming pure and safe water.