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Civil Engineering Department, Indian Institute of Engineering Science and Technology, Shibpur, Howrah-711 103, West Bengal, India E-mail: loganath.rk@gmail.com Manuscript received online 08 January 2020, accepted 24 June 2020 The present paper demonstrates feasibility of treatment of synthetically prepared slaughterhouse wastewater by Hybrid Upflow Anaerobic Sludge Blanket reactor having Enhanced Clarifier (EC-HUASB). The main aim was to estimate the capacity of such reactor for removal of Chemical Oxygen Demand (COD) under various operating conditions and thereby to optimize the system performance. The said reactor was run under the COD Loading Rates (OLR) between 2.40 and 9.60 kg COD/m3/d on account of change in Hydraulic Retention Time (HRT) and COD between (24–6) h and (1000–6000) mg/L respectively. The highest COD removal percentage was recorded as 96% for the OLR of 4.00 kg COD/m3/d. The highest biogas generation was measured as 47.65 L/d at OLR of 9.60 kg COD/m3/d. The optimum OLR was found to be 8.00 kg COD/m3/d showing COD removal percentage and biogas generation of 92% and 41.5 L/d respectively. |
