Occurrence and removal of quinolone, tetracycline, and macrolide antibiotics from urban wastewater in constructed wetlands

被引：75
作者：
Dan, A. [1 ,2 ]
Zhang, Xiaomeng [1 ]
Dai, Yunv [1 ]
Chen, Chunxing [1 ]
Yang, Yang [1 ,3 ]
机构：
[1] Jinan Univ, Dept Ecol, Guangzhou 510632, Peoples R China
[2] Sun Yat Sen Univ, Sch Environm Sci & Engn, Guangzhou 510006, Peoples R China
[3] Minist Educ, Engn Res Ctr Trop & Subtrop Aquat Ecol Engn, Guangzhou 510632, Peoples R China
来源：
JOURNAL OF CLEANER PRODUCTION | 2020年 / 252卷
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
Antibiotic contaminated urban wastewater; Constructed wetlands; Anaerobic degradation; Photocatalytic degradation; Adsorption; RESISTANCE GENES; TREATMENT PLANTS; DOMESTIC SEWAGE; PHARMACEUTICALS; FATE; PERFORMANCE; DESIGN; CONFIGURATION; CHINA; SOUTH;
D O I：
10.1016/j.jclepro.2019.119677
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Constructed wetlands (CWs) are potentially effective for the removal of antibiotics, yet the inherent process and mechanism of antibiotic removal remain insufficiently elucidated. This study investigated the removals of eight antibiotics (norfloxacin, ciprofloxacin, lomefloxacin, ofloxacin, tetracycline, oxytetracycline, erythromycin, roxithromycin) from domestic sewage in CWs of different flow types, substrates, plants, and hydraulic loading rates in two seasons. The results showed that the CWs performed efficiently for treating antibiotic contaminated urban wastewater. Flow type deciding redox condition is the domain factor of antibiotic removal through affecting methanogenic degradation. Photolysis is significant in half-substrate systems during summer with exposure to strong sunlight, while adsorption is noteworthy in full-substrate systems during winter with cold weather. Furthermore, plant presence may limit the anaerobic processes of antibiotics via radial oxygen loss. (C) 2019 Elsevier Ltd. All rights reserved.
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页数：9
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