Volume No. 11 Issue No.: 2 Page No.: 351-359 October-December 2016


Review Paper (NS-I)


Jayalakshmi G., Bhavya Kavitha D. and Saritha V.*

Department of Environmental Studies, GITAM Institute of Science, GITAM University, Visakhapatnam (INDIA)


Received on : September 3, 2016




Plant waste product generation is inevitable from different sectors especially from agricultural sector. If not disposed of or used for alternative purposes owing to its organic nature this waste undergoes degradation either aerobically but mostly anaerobically which effects environment on to which it is disposed. Many methods and technologies have been proposed to convert this waste to useful products, which will require technological or mechanical inputs and are also economically burden. Using these wastes at the point of generation for treating water will be a promising and efficient way of controlling pollution due to these wastes. Hence, in the present review we have aimed at amalgamating various such products to be used as coagulants for drinking water treatment. The plant wastes like Rice husk, Rice hull, Fruit peels, Peanut cake, Saw dust etc., contain chemical compounds like lignin, cellulose, pectin, resins, polysaccharides and proteins. Studies on these compounds have proved that they have ability to act as coagulants for drinking water treatment. The use of expensive and commercially available coagulants for coagulation can possibly be replaced by using these lowcost, more effective, abundant and readily available wastes.


Keywords : Coagulant, Rice husk, Agricultural waste, Cellulose, Proteins