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A pilot scale trickling filter with pebble gravel as media and its performance to remove chemical oxygen demand from synthetic brewery wastewater

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2013年第10期14卷 924-933页

作者： Haimanot HABTE LEMJI Hartmut ECKST DT Faculty of Agricultural and Environmental Sciences Institute of Hydromechanics and Water Management University of Rostock

Evaluating the performance of a biotrickling filter for the treatment of wastewaters produced by a company manufacturing beer was the aim of this study.A pilot scale trickling filter filled with gravel was used as the experimental *** scale plant experiments were made to evaluate the performance of the trickling filter aerobic and anaerobic biofilm systems for removal of chemical oxygen demand(COD) and nutrients from synthetic brewery *** evaluation data of the trickling filter were generated under different experimental *** trickling filter had an average efficiency of(86.81±6.95)% as the hydraulic loading rate increased from 4.0 to 6.4 m3/(m2·d).Various COD concentrations were used to adjust organic loading rates from 1.5 to 4.5 kg COD/(m3·d).An average COD removal efficiency of(85.10±6.40)% was achieved in all wastewater concentrations at a hydraulic loading of 6.4 m3/(m2·d).The results lead to a design organic load of 1.5 kg COD/(m3·d) to reach an effluent COD in the range of 50–120 mg/*** can be concluded from the results of this study,organic substances in brewery wastewater can be handled in a cost-effective and environmentally friendly manner using the gravel-filled trickling filter.

关键词： Biodegradation Pilot scale trickling filter Aerobic treatment Brewery wastewater Chemical oxygen demand(COD) trickling filter performance

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