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Authors Liang, YX; Zhu, H; Banuelos, G; Shutes, B; Yan, BX; Cheng, XW
Author Full Name Liang, Yinxiu; Zhu, Hui; Banuelos, Gary; Shutes, Brian; Yan, Baixing; Cheng, Xianwei
Title Removal of sulfamethoxazole from salt-laden wastewater in constructed wetlands affected by plant species, salinity levels and co-existing contaminants
Source CHEMICAL ENGINEERING JOURNAL
Language English
Document Type Article
Author Keywords Sulfamethoxazole; Constructed wetland; Salinity levels; Electrical conductivity; Co-existing contaminants
Keywords Plus ANTIBIOTIC-RESISTANCE GENES; HEAVY-METAL MOBILITY; PHOTOCATALYTIC DEGRADATION; DOMESTIC SEWAGE; ORGANICS REMOVAL; NITROGEN; PERFORMANCE; SLUDGE; SULFAMETHAZINE; RESIDUES
Abstract Constructed wetlands (CWs) have been applied to remove antibiotics under many conditions. However, the removal of antibiotics from saline wastewater in CWs is rarely studied, especially considering the constitution and configuration of CWs and influent water characteristics. In this current study, three experiments with two scales of CWs were conducted to investigate the influence of plant species, salinity levels and co-existing contaminants (nutrients and heavy metals) on the antibiotic sulfamethoxazole (SMX) removal. The four tested plant species did not show a significant influence on SMX removal in CW mesocosms when electrical conductivity (EC) was at 7 mS/cm, and the removal percentages of 73.1-74.8% and 70.1-76.3% for SMX were observed under low and high influent loads, respectively. High salinity level (EC at 30 mS/cm) significantly (p < 0.05) suppressed SMX removal under high influent SMX loads in CW microcosms. The addition of nutrients and heavy metals generally improved the removal of SMX (except for EC of 30 mS/cm treatment under high influent load) in CW microcosms, especially when the heavy metal concentrations were low. In conclusion, CWs can be a potential technology to efficiently remove SMX-like antibiotics from saline wastewater (EC < 30 mS/cm).
Author Address [Liang, Yinxiu; Zhu, Hui; Yan, Baixing; Cheng, Xianwei] Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Wetland Ecol & Environm, Changchun 130102, Jilin, Peoples R China; [Banuelos, Gary] ARS, USDA, San Joaquin Valley Agr Sci Ctr, 9611 South Riverbend Ave, Parlier, CA 93648 USA; [Shutes, Brian] Middlesex Univ, Urban Pollut Res Ctr, London NW4 4BT, England
Reprint Address Zhu, H (corresponding author), Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Wetland Ecol & Environm, Changchun 130102, Jilin, Peoples R China.
E-mail Address zhuhui@iga.ac.cn
Funding Agency and Grant Number National Key R&D Program of China [2016YFC0500404-4]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41471406]; Youth Innovation Promotion Association of CAS [2017274]
Funding Text This work was supported by the National Key R&D Program of China (No. 2016YFC0500404-4), the National Natural Science Foundation of China (No. 41471406), and the Youth Innovation Promotion Association of CAS (No. 2017274). We are very grateful to Dr. Nan Lu in Northeast Normal University, China, for her help in SMX measurement. We also thank Wenzhuo Yu for her help in SMX pretreatment processes.
Times Cited 20
Total Times Cited Count (WoS, BCI, and CSCD) 21
Publisher ELSEVIER SCIENCE SA
Publisher City LAUSANNE
Publisher Address PO BOX 564, 1001 LAUSANNE, SWITZERLAND
ISSN 1385-8947
29-Character Source Abbreviation CHEM ENG J
ISO Source Abbreviation Chem. Eng. J.
Publication Date JUN 1
Year Published 2018
Volume 341
Beginning Page 462
Ending Page 470
Digital Object Identifier (DOI) 10.1016/j.cej.2018.02.059
Page Count 9
Web of Science Category Engineering, Environmental; Engineering, Chemical
Subject Category Engineering
Document Delivery Number GU8CL
Unique Article Identifier WOS:000445561100046
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