Use of a coupled SBR–MBR for treatment of produced water enriched by halophilic bacteria

Author:

Rahmaninezhad Seyed Ali1ORCID

Affiliation:

1. Department of Environmental Engineering, University of Tehran, Tehran, Iran

Abstract

The performance of a sequencing batch bioreactor (SBR) coupled with a membrane bioreactor (MBR) for treatment of hypersaline produced water by insertion of a halophilic bacterial consortium was tested at three different organic loading rates (OLRs): 1, 2 and 4 (kg chemical oxygen (O2) demand (COD)/m3)/d. Four total dissolved solids (TDS) concentrations (20, 50, 80 and 120 g/l) were investigated in this study. At different TDS concentrations and OLRs, COD removal was found to be efficient at 91·3–99·5% and the amount of mixed liquor suspended solids (MLSS) varied from 4·61 to 9·88 g/l. The amounts of COD removal and MLSS increased with increased OLRs and decreased in hypersaline concentrations. Increases in TDS had a negative effect on membrane flux and fouling rates, but, in this hybrid system, the reduction in flux with increase in TDS was minor, while high-quality treated water was produced from the immersed membrane.

Publisher

Thomas Telford Ltd.

Subject

General Environmental Science,Environmental Chemistry,Environmental Engineering

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Using ultra filtration membrane in photo electrocatalytic desalination cell (UF-PEDC);Desalination;2020-07

2. Editorial;Journal of Environmental Engineering and Science;2019-12

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