تعيين كارايي تصفيه خانه فاضلاب در يك شركت شير پاستوريزه

Performance of a Dairy Wastewater Treatment Plant

There are several methods for wastewater treatment of dairy industries throughout the world. A lot of research work has recently been directed toward new wastewater treatment methods such as aerobic and anaerobic Sequencing Bach Reactor (SBR), Anaerobic Filter (AF), Upflow Anaerobic Solid Removed (UASR) and Constructed Wetlands (CW). In Iran dairy industry effluents as a source of environmental pollution is important. In the present case study, we have evaluated the wastewater treatment process used in Milk industry and proposed ways for upgrading its performance. The system includes a pretreatment followed by a biological treatment unit which consists of an anaerobic lagoon and an activated sludge process. Results showed that the performance of the system was satisfactory. BOD5 and COD removal efficiencies were about 35% and 61% for anaerobic lagoon and activated sludge respectively. The total efficiency of the system was found about 96%.