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Journal of Zhejiang University SCIENCE B 2013 Vol.14 No.10 P.924-933

http://doi.org/10.1631/jzus.B1300057


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


Author(s):  Haimanot Habte Lemji, Hartmut Eckstädt

Affiliation(s):  Faculty of Agricultural and Environmental Sciences, Institute of Hydromechanics and Water Management, University of Rostock, 18055 Rostock, Germany

Corresponding email(s):   haimanot.lemji@uni-rostock.de

Key Words:  Biodegradation, Pilot scale trickling filter, Aerobic treatment, Brewery wastewater, Chemical oxygen demand (COD), Trickling filter performance


Haimanot Habte Lemji, Hartmut Eckstädt. A pilot scale trickling filter with pebble gravel as media and its performance to remove chemical oxygen demand from synthetic brewery wastewater[J]. Journal of Zhejiang University Science B, 2013, 14(10): 924-933.

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author="Haimanot Habte Lemji, Hartmut Eckstädt",
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pages="924-933",
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doi="10.1631/jzus.B1300057"
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%T A pilot scale trickling filter with pebble gravel as media and its performance to remove chemical oxygen demand from synthetic brewery wastewater
%A Haimanot Habte Lemji
%A Hartmut Eckstädt
%J Journal of Zhejiang University SCIENCE B
%V 14
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%P 924-933
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%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.B1300057

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T1 - A pilot scale trickling filter with pebble gravel as media and its performance to remove chemical oxygen demand from synthetic brewery wastewater
A1 - Haimanot Habte Lemji
A1 - Hartmut Eckstädt
J0 - Journal of Zhejiang University Science B
VL - 14
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SP - 924
EP - 933
%@ 1673-1581
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.B1300057


Abstract: 
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 biofilter. Pilot 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 wastewater. Performance evaluation data of the trickling filter were generated under different experimental conditions. The 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/L. As 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.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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