Author : Madhukar Subhash Patil and Ghayas A. Usmani

Present study was carried out to investigate the application of Compact jet loop reactor in the waste water treatment by using activated sludge process. The tests were carried out in the laboratory with synthetic waste water and the effluent from pharmaceutical industry. A laboratory scale Compact jet loop reactor model comprising of an aeration tank and final clarifier was used for this purpose. The Chemical Oxygen Demand (COD) and Biochemical Oxygen Demand (BOD) of the influent and effluent collected from pharmaceutical industry was measured to find process efficiency at various mixed liquor volatile suspended solids (MLVSS) and hydraulic retention time (θ). The results of the study demonstrated that an efficiency of above 56% for COD and above 66% for BOD could be obtained for above waste sample collected from pharmaceutical industry in Compact jet loop reactor if the ASP is operated at an MLVSS concentration of 3000 mg/l keeping an aeration time of 1 hour.

Keywords: Activated Sludge, Synthetic waste water (SWW), BOD, COD, Mixed Liquor Volatile Suspended Solids (MLVSS).

Article published in International Journal of Current  Engineering  and Technology, Vol.4,No.2 (April- 2014)