There’s no doubt that water is important. Aside from actually being part of the weather in the form of rain sleet and snow, large bodies of water can keep a region’s temperature milder than a location even just a few miles inland. Now a days Water pollution is a major global problem. It has been suggested that it is the leading worldwide cause of deaths and diseases, and that it accounts for the deaths of more than 14,000 people daily. Water pollution has become a serious problem because of biomagnifications using water as a medium. Among the various processes (AOP) are promising, as complete destruction of the toxic organic substances can be achieved.AOP include photo degradation, electrochemical oxidation and biodegradation methods.