Adsorbents for removal of hazardous organic substance from waste water and natural water samples: A review

Abstract

Water is very important for the human body and all the living organisms, the toxicity of water due to hazardous organic contaminants/pollutants has adverse effect on aquatic life, immobilize the enzymes in plants and Causes various hazardous diseases in human being. Some illnesses do not appear after drinking or consuming unsafe water for several days, but those diseases lead to step-by step damage to human organs such as liver, lung, bladder and kidney. There is no doubt that poor quality drinking water poses a threat to human health. The hazardous organic contaminants drained in waters from different sources decreases the quality of drinking water making it toxic and non-drinkable. This is why it is essential to remove these hazardous organiz substances. Recently, various methods like membrane separation, chemical treatment, electrochemical regeneration, coagulation, flocculation, flotation, evaporation, biological purification and ion exchange are being used to remove these hazardous organic from contaminated water.