A Novel Approach for Reduction of Protein in Dairy Effluent using Aerobic Treatment

Water resources are importance to human beings. Dairy industries have shown tremendous growth in number and size in many countries of the world. These industries released wastewater which is characterized by biological oxygen demand, nutrients, high chemical oxygen demand, and organic and inorganic contents. Such wastewaters, if released without proper treatment, severely pollute receiving water bodies. Dairy waste water is released into the environment and is hazardous to human, flora and fauna. Poorly treated wastewater with large level of pollutants caused by operation, treatment systems or poor design creates environmental problems when released to the surface land or water. In most cases, these effluents are untreated and are simply thrown into rivers where they contribute to eutrophication by addition of nitrogen and phosphorus compounds. Various operations in a dairy industry may include pasteurization, milk powder, cream, cheese, etc. Considering the above stated implications an attempt has been made in the present project to evaluate one of the most effluent treatment plant for dairy waste. The present investigation was carried out for biodegradation of dairy effluent by using selected aerobic microbial treatment. The removal of organic matter and particles from wastewater is often achieved by coagulation. Coagulation-flocculation is one of the cost effective and simplest methods for industrial wastewater treatment to decrease the BOD, COD and turbidity content of the wastewater. Treating dairy effluents is of crucial importance not only for the environment, but also for the purpose of reusing water for industrial processes.