-In any dairy plant, the quantity and characteristics of effluent is depending upon the extent of production activities, pasteurization to several milk products. Water management in the dairy industry is well documented, but effluent production and disposal remain a problematic issue for the dairy industry .To enable the dairy industry to contribute to water conservation, an efficient and cost-effective treatment technology has to be developed. The anaerobic reactors in the first phase of treatment, which is followed by high rate aerobic treatment, remain as the most common effluent treatment scheme for dairy plants. 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. So there is every need to reuse the waste water generated with proper and efficient treatment methods. The present study, thus initiated, for evaluating a need of experimental work on anaerobic reactor incorporated with fixed and floating film system for treating dairy wastewater with four weeks of harvesting. The kinetic parameters are estimated using the experimental data to develop model. Empirical relations were generated for the characteristics like COD, BOD, and TSS using modeling equations