摘要：Dairy effluent is the most dynamic and varying in its characteristics, as all effluent streams are only from cleaning and washing activities. It is a high COD waste stream with certain inhibitory factors like cream of milk and residues of milk products like gee, butter etc., Anaerobic techniques like UASBR do require specific pre treatment operations for its effective operation and hence they are not widely used. The typical dairy effluents are synthetically prepared for varying COD values [1563.28, 2559.00, 3560.16, 4043.17 and 4571.15 mg/L] and an UASB model was studied. The study was repeated for varying Hydraulic Retention Time [6, 10, 12, 18 & 24 hrs] and performance of model was evaluated in term of % COD removal, VSS in the reactor and biogas generation.
