Considering a membrane bioreactor for the treatment of vegetable oil refinery wastewaters at industrially relevant organic loading rates

被引：0
作者：
Elham Abdollahzadeh Sharghi
Azadeh Shourgashti
Babak Bonakdarpour
机构：
[1] Materials and Energy Research Center,Environmental Group, Department of Energy
[2] Amirkabir University of Technology,Department of Chemical Engineering
来源：
Bioprocess and Biosystems Engineering | 2020年 / 43卷
关键词：
Membrane bioreactor; Vegetable oil refinery wastewater; Organic loading rate; Membrane fouling; Mixed liquor physicochemical properties;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The present study aims to shed more light on the use of membrane bioreactors (MBRs) for the treatment of vegetable oil refinery wastewaters (VORWs). A MBR was operated for 157 days in which it was fed with real VORW of varying composition at a range of organic loading rates (0.20 ± 0.05–3.79 ± 0.29 kg COD m−3 day−1). The hitherto unconsidered fate of VORW constituents through the biological process was followed using gas chromatography/mass spectrometry analysis. This analysis revealed that only 19% of the identified feed constituents remained in the MBR effluent whereas ten new compounds were formed. Linear correlation analysis attributed the effluent residual COD to soluble microbial products (SMP) and non-readily biodegradable recalcitrant oily compounds. Trend of change of MLSS, mixed liquor viscosity and SMP with increasing OLR suggested that when MBR is operated under industrial conditions for the VORW treatment, the mixed liquor fouling propensity potentially increases with increasing OLR in the range studied.
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页码：981 / 995
页数：14
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