Performances of anaerobic and aerobic membrane bioreactors for the treatment of synthetic textile wastewater

•Anaerobic and aerobic MBRs were compared for dye containing wastewater treatment.•Color was completely removed in the anaerobic MBR.•AnMBR and AeMBR were successfully operated up to 9 LMH and 20 LMH, respectively.•Higher filtration resistances were observed in AnMBR.•Chemical cleaning almost comple...

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Bibliographic Details
Published in:Bioresource technology 2015-09, Vol.192, p.564-573
Main Authors: Yurtsever, Adem, Sahinkaya, Erkan, Aktaş, Özgür, Uçar, Deniz, Çınar, Özer, Wang, Zhiwei
Format: Article
Language:English
Subjects:
Aerobiosis - physiology
Anaerobic membrane bioreactor
Anaerobiosis - physiology
Azo Compounds - isolation & purification
Azo Compounds - metabolism
Bioreactors - microbiology
Color removal
Equipment Design
Equipment Failure Analysis
Fouling
Membrane bioreactor
Membranes, Artificial
Sewage - microbiology
Textile Industry
Textile industry wastewater
Textiles - microbiology
Ultrafiltration - instrumentation
Waste Water - microbiology
Water Pollutants, Chemical - isolation & purification
Water Pollutants, Chemical - metabolism
Water Purification - instrumentation
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Summary:•Anaerobic and aerobic MBRs were compared for dye containing wastewater treatment.•Color was completely removed in the anaerobic MBR.•AnMBR and AeMBR were successfully operated up to 9 LMH and 20 LMH, respectively.•Higher filtration resistances were observed in AnMBR.•Chemical cleaning almost completely removed fouling for both MBRs. This study aims at comparatively evaluating anaerobic and aerobic MBRs for the treatment of azo-dye containing synthetic wastewater. Also, the filtration performances of AnMBR and AeMBR were compared under similar operating conditions. In both MBRs, high COD removal efficiencies were observed. Although almost complete color removal was observed in AnMBR, only partial (30–50%) color removal was achieved in AeMBR. AnMBR was successfully operated up to 9L/(m2h) (LMH) and no chemical cleaning was required at 4.5LMH for around 50days. AeMBR was operated successfully up to 20LMH. The filtration resistance of AnMBR was generally higher compared to AeMBR although reversible fouling rates were comparable. In both MBRs, offline chemical cleaning with NaOCl and sulfuric acid almost completely removed irreversible fouling and the resistances of chemically cleaned membranes were close to those of new membranes.
ISSN:0960-8524
1873-2976
DOI:10.1016/j.biortech.2015.06.024