Dairy Industry Wastewater Treatment using Sequential Batch Reactor

Dairy industries have shown tremendous growth in size and number. These industries facing the problem of wastewater treatment and its disposal. Huge amount of Fresh water is used mainly for cleaning equipment and work area also during processing of milk and milk products. This wastewater contains high concentration of organic matter, high BOD, COD, suspended solids, nitrogen, etc. Such wastewaters, if discharged without proper treatment, severely pollute receiving water bodies. Thus proper treatment of dairy wastewater is necessary before disposal. There are so many treatment plants working on different conventional treatment techniques like ASP, trickling filter, waste stabilization pond, etc. But conventional treatment has limitations space, economy, and maintenance problem and technically skilled labours are required. In this study, the various recent advancements in the treatment of dairy wastewater using sequential batch reactor is discussed. The Sequential Batch Reactor (SBR) is one of the probable options for treatment of industrial wastewater. It works on natural settlement and aeration process in single tank of SBR. SBR is a fill-and draw system for aerobic wastewater treatment. The results totally depend on the experimental work by giving specific time period. Main aim is removal of pH, BOD, COD and TSS compared with standard effluent values and maintenance cost with as effective treatment as possible.