The Indian dairy industry is stated to have the growth at more than 15% and poised to cross the 150 million tones per annum. In any dairy plant, the quantity and characteristics of effluent is depending upon the extent of production activities, pasteurization to several milk products.The requirement for milk and milk products is kept growing in steady pace, making a significant impact on the Indian agriculture domain. The dairy industries require large quantity of water for the purpose of washing of cans, machinery and floor, the liquid waste in a dairy originates from manufacturing process, utilities and service section. The various waste generated from a dairy are spilled milk, spoiled milk, skimmed milk, whey. Whey is the most difficult, high strength waste product of cheese manufacture. The anaerobic digesters in the first phase of treatment, is followed by high rate aerobic treatment. The present study was initiated for evaluating a need based experimental work on Upflow Anaerobic Sludge blanket for treating dairy effluent.

Key words: COD, UASBR, Hydrolyzing bacteria Acetogenic bacteria, Methanogenic bacteria