Degradation mechanism of Ibuprofen via a forward osmosis membrane bioreactor

被引：25
|
作者：
Yao, Meichen [1 ,2 ]
Duan, Liang [1 ,2 ]
Song, Yonghui [1 ,2 ]
Hermanowicz, Slawomir W. [3 ,4 ]
机构：
[1] Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
[2] Chinese Res Inst Environm Sci, State Environm Protect Key Lab Estuarine & Coasta, Beijing 100012, Peoples R China
[3] Tsinghua Berkeley Shenzhen Inst, Shenzhen 518071, Peoples R China
[4] Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA
来源：
BIORESOURCE TECHNOLOGY | 2021年 / 321卷
关键词：
Ibuprofen (IBU); Forward osmosis membrane bioreactor (FOMBR); Degradation mechanism; Microbial community structure; REMOVAL; PHARMACEUTICALS; MICROORGANISMS; BIODEGRADATION; PERFORMANCE; SYSTEM; WASTE; WATER;
D O I：
10.1016/j.biortech.2020.124448
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
Ibuprofen (IBU) is a non-steroidal drug that is classified as a trace organic compound (TrOC). A forward osmosis membrane bioreactor (FOMBR) has traditionally been a favored technology for wastewater treatment. In this study, the IBU degradation mechanism was clarified using an FOMBR. The results indicated that the average removal efficiencies of contaminants were greater than 96.32%. The ultra-performance liquid chromatography time-of-flight mass spectrometry (UPLC-TOF-MS) results demonstrated that there were 10 intermediates and 5 possible pathways during the IBU degradation. Decarboxylation and hydroxylation may be the primary pathways of IBU degradation. The microbial results illustrated that Proteobacteria was dominant and of utmost importance in the degradation process. Thauera and Azoarcus were the dominant genera that participated in contaminant degradation.
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页数：5
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