Impact of simultaneous retention of micropollutants and laccase on micropollutant degradation in enzymatic membrane bioreactor

被引：34

作者：

Asif, Muhammad B. ^{[1
]}

Hai, Faisal I. ^{[1
]}

Dhar, Bipro R. ^{[2
]}

Ngo, Huu H. ^{[3
]}

Guo, Wenshan ^{[3
]}

Jegatheesan, Veeriah ^{[4
]}

Price, William E. ^{[5
]}

Nghiem, Long D. ^{[1
,3
]}

Yamamoto, Kazuo ^{[6
]}

机构：

[1] Univ Wollongong, Sch Civil Min & Environm Engn, Strateg Water Infrastruct Lab, Wollongong, NSW 2522, Australia

[2] Univ Alberta, Sch Min & Petr Engn, Dept Civil & Environm Engn, Edmonton, AB T6G 1H9, Canada

[3] Univ Technol Sydney, Sch Civil & Environm Engn, Ctr Technol Water & Wastewater, Sydney, NSW 2007, Australia

[4] RMIT Univ, Sch Engn, Melbourne, Vic 3000, Australia

[5] Univ Wollongong, Sch Chem, Strateg Water Infrastruct Lab, Wollongong, NSW 2522, Australia

[6] Univ Tokyo, Dept Urban Engn, Ctr Environm Sci, Tokyo 1130033, Japan

来源：

BIORESOURCE TECHNOLOGY | 2018年 / 267卷

关键词：

High retention membrane; Enzymatic membrane bioreactor Laccase-catalyzed degradation; Micropollutants; Nanofiltration membrane; Ultrafiltration membrane; TRACE ORGANIC CONTAMINANTS; WHITE-ROT FUNGI; REVERSE-OSMOSIS MEMBRANES; PERSONAL CARE PRODUCTS; ULTRAFILTRATION MEMBRANES; BIOCATALYTIC DEGRADATION; TETRACYCLINE DEGRADATION; REMOVAL; REACTOR; WATER;

D O I：

10.1016/j.biortech.2018.07.066

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

This study systematically compares the performance of ultrafiltration (UF) and nanofiltration (NF) based enzymatic membrane bioreactors (EMBRs) for the degradation of five micropollutants, namely atrazine, carbamazepine, sulfamethoxazole, diclofenac and oxybenzone to elucidate the impact of effective membrane retention of micropollutants on their degradation. Based on the permeate quality, NF-EMBR achieved 92-99.9% micropollutant removal (i.e., biodegradation + membrane retention), while the removal of these micropollutants by UF-EMBR varied from 20 to 85%. Mass balance analysis revealed that micropollutant degradation was improved by 15-30% in NF-EMBR as compared to UF-EMBR, which could be attributed to the prolonged contact time between laccase and micropollutants following their effective retention by the NF membrane. A small decline in permeate flux was observed during EMBR operation. However, the flux could be recovered by flushing the membrane with permeate.

引用

页码：473 / 480

页数：8

共 46 条

[1] Large-scale enzymatic membrane reactors for tetracycline degradation in WWTP effluents [J].