Determine the optimum conditions in dairy wastewater treatment containing biological method to increase

Biological methods in order to improve the performance of activated sludge systems for dairy wastewater treatment plants, the microbial Jmyt aerobic activated sludge treatment system in Iran Milk Industries Company) Pegah (ten bacteria isolated and the performance of each Ryzandamgan reduce the organic load effluent ve studied. After 30 days of sampling, bacteria BP $ _ {3} $ and BP $ _ {4} $ chemical oxygen required) COD (respectively to 70.7 and 69.5 percent decreased. With Optimum temperature conditions imposed on $ ^ { circ} C $ 35-30, pH equal to 10-11, and round mixer) rpm (150 bacterial, chemical oxygen required) COD (by BP $ _ {3} $ dealing fell 84.70 percent. The amount of bacteria from carbohydrates, fats and proteins respectively effluent 98, 45.30, and has declined 53 percent. Mixed BP $ _ {3} $ and BP $ _ {4} $ Bhandaz·hy BP $ _ {3} $ is not just performance. So BP $ _ {3} $ as the best selection of bacteria in the system and increasing the activated sludge aeration tanks and regain mixed microbial activated sludge system performance efficiency can be raised.