Treatment Efficiency of UASBR in Slaughter wastewater

Author(s)	Dr. SYED ENAYATHALI S
Country	India
Abstract	The wastewater discharged by slaughterhouse is characterized mainly by high biochemical oxygen demand, high suspended solids and complex mixture of fats, proteins and fibers requiring systematic treatment prior to disposal. This study was carried out to examine a lab-scale up flow anaerobic sludge blanket reactor performance for treatment of slaughter wastewater under varying operating conditions. (pH) 7.1-7.8, total suspended solids (TSS) 900-1500 mg/l, total dissolved solids (TDS) 1600-3000 mg/l, chemical oxygen demand (COD) 3000-5000 mg/l). The reactor was run at varying OLR (0.025) and HRT (7.00, 11.00, 15.00, 19.00, 23.00 hrs) at temperature of (29-35°C). The maximum total chemical oxygen demand removal efficiency of 82.68% was achieved at an organic loading rate of 0.013 kg/COD/m2/day and at a hydraulic retention time of 23 hrs. A post treatment of the effluent was however found necessary to achieve land or inland water discharge standard.
Keywords	Slaughter wastewater, UASB Reactor, COD, OLR, HRT
Field	Engineering
Published In	Volume 8, Issue 2, March-April 2026
Published On	2026-03-23

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