Anaerobic treatment of potato-processing wastewater by a UASBR-UAF system at low organic loadings |
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| Authors: | J Guo K C Lin |
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| Institution: | 1. Department of Civil Engineering, Tienjin University, Tienjin, People's Republic of China
2. Department of Civil Engineering, University of New Brunswick, P O. Box 4400, E3B 5A3, Fredericton, N.B., Canada
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| Abstract: | Laboratory-scale models consisting of a simple upflow anaerobic sludge blanket reactor (UASBR) and an upflow anaerobic filter (UAF) in series were subjected to organic loadings of 0.19 to 0.55 kg COD m?3 d?1 at 20°C. COD and SS removals were 95 to 98% and 98 to 99%, respectively. Biogas produced by the system amounted to 0.31 to 0.32 m3 CH4 kg?1 COD removed. The UASBR was more stable than the UAF in performance. No sign of deterioration in final effluent quality was observed during 420 days of operation under low loading. |
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