EXTRACTING HEAVYMETALS USING NATURAL COAGULANT AND INFLUENCING OXYGEN DEMAND IN ROTATING BIOLOGICAL CONTACTOR METHOD
Keywords:
RBC, Cow dung, Wood ash, Moringa seed powder, Natural coagulant, Textile raw waterAbstract
Rapid urbanization and industrialization in developing countries like India pose severe problems in
collection, treatment and disposal of effluent. A number of Industry waste water plays an important role and also pollute
the environment. We can extract heavy metals in the industrial waste water. Biological treatment is applied to that waste
water.The advanced biological treatment RBC(Rotating biological contactor) is adopted.The RBC process involves
allowing the wastewater to come in contact with a biological medium in order to remove pollutants in the waste water.A
rotating biological contactor is a type of secondary treatment process. Coagulation is one of the most widely used for
wastewater treatment,as it is efficient and simple to operate.The natural coagulants like cow dung, wood ash,moringa seed
powder are used to remove heavymetals in the industrial waste water.It is bio-degradability, safe for human
health,environmental friendly and produce no secondary sludge.