Title: The performance of a modified Anaerobic Baffled Reactor (ABR) treating high strength synthetic wastewater

Authors: Shijun He, Jianlong Wang, Yan Luo, Lingling Sun

Addresses: Laboratory of Environmental Technology, INET, Tsinghua University, Beijing 100084, PR China. ' Laboratory of Environmental Technology, INET, Tsinghua University, Beijing 100084, PR China. ' Department of Environmental Engineering, Beijing Forest University, Beijing 100084, PR China. ' Department of Environmental Engineering, Beijing Forest University, Beijing 100084, PR China

Abstract: In the present study the overall performance of a modified Anaerobic Baffled Reactor (ABR) treating high strength synthetic wastewater was first described. The reactor differs from the original ABR as follow: a modified internal lamella separator was positioned at top of each up-flow sections to separate the biogas and liquid to reduce the sludge wash out. The initial organic loading rate was 3.04 kg COD/m³ d, and gradually increased to 19.2 kg COD/m³ d within two month while soluble COD removals attained were in excess of 90%. Granulation of biomass was also observed in the reactor at the end of experiments.

Keywords: ABR; anaerobic baffled reactors; anaerobic digestion; granulation; OLR; organic loading rate; biomass; synthetic wastewater; wastewater treatment; biogas; sludge washout.

DOI: 10.1504/IJEP.2009.025134

International Journal of Environment and Pollution, 2009 Vol.37 No.2/3, pp.309 - 318

Published online: 13 May 2009 *

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