Removal of endocrine disrupting chemicals and microbial indicators by a decentralised membrane bioreactor for water reuse

Journal of Water Reuse and Desalination

Le-Clech, P.¹  Khan, S. J.²  Coleman, H. M.²  Trinh, T.²  van den Akker, B.²  Stuetz, R. M.² 

[1]UNESCO Centre for Membrane Science and Technology, School of Chemical Engineering, University of New South Wales, NSW, 2052, Australia

[2]UNSW Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, NSW, 2052, Australia

关键词: membrane bioreactor;    microbial indicators;    steroidal hormones;    trace organic contaminants;    wastewater treatment;   

DOI  :  10.2166/wrd.2012.010

学科分类：工程和技术（综合）

来源: IWA Publishing

【 摘 要 】

Submerged membrane bioreactors (MBRs) have attracted a significant amount of interest for decentralised treatment systems due to their small footprint and ability to produce high quality effluent, which is favourable for water reuse applications. This study provides a comprehensive overview of the capacity of a full-scale decentralised MBR to eliminate 17 endocrine disrupting chemicals (EDCs) and five indigenous microbial indicators. The results show that the MBR consistently achieved high removal of EDCs (>86.5%). Only 2 of the 17 EDCs were detected in the MBR permeate, namely two-phenylphenol and 4-tert-octylphenol. Measured log10 reduction values of vegetative bacterial indicators were in the range of 5–5.3 log10 units, and for clostridia, they were marginally lower at 4.6 log10 units. Removal of bacteriophage was in excess of 4.9 log10 units. This research shows that MBRs are a promising technology for decentralised water reuse applications.

【 授权许可】

CC BY-NC-ND