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Biological treatment of milk processing wastewater in a sequencing batch flexible fibre biofilm reactor
Author(s) -
Abdulgader Mohamed,
Yu Qiming Jimmy,
Zinatizadeh Ali,
Williams Philip
Publication year - 2009
Publication title -
asia‐pacific journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.348
H-Index - 35
eISSN - 1932-2143
pISSN - 1932-2135
DOI - 10.1002/apj.320
Subject(s) - sequencing batch reactor , wastewater , chemical oxygen demand , biofilm , hydraulic retention time , pulp and paper industry , bioreactor , chemistry , microorganism , sewage treatment , environmental science , bacteria , environmental engineering , biology , engineering , organic chemistry , genetics
Biological treatment of dairy wastewater was investigated using a laboratory scale aerobic sequencing batch flexible fibre biofilm reactor (SBFFBR). The SBFFBR system was modified from a typical sequencing batch reactor system by using eight flexible fibre bundles with a very high specific surface area, which served as support for microorganisms. The reactor was operated under different influent chemical oxygen demand (COD) concentrations (610, 2041 and 4382 mg l −1 ) and constant hydraulic retention times of 1.6 days. The results have shown successful applicability of the SBFFBR system to treat this dairy wastewater. High COD removal efficiencies between 89.7 and 97% were achieved at average organic loading rates of 0.4 and 2.74 kg COD m −3 d −1 , respectively. Copyright © 2009 Curtin University of Technology and John Wiley & Sons, Ltd.