Removal of selected sulfonamides and sulfonamide resistance genes from wastewater in full-scale constructed wetlands

被引：16

作者：

Felis, Ewa ^{[1
]}

Sochacki, Adam ^{[2
]}

Bajkacz, Sylwia ^{[3
]}

Luczkiewicz, Aneta ^{[4
]}

Jozwiakowski, Krzysztof ^{[5
]}

Garcia, Joan ^{[6
]}

Vymazal, Jan ^{[2
]}

机构：

[1] Silesian Tech Univ, Fac Energy & Environm Engn, Environm Biotechnol Dept, Ul Akad 2, PL-44100 Gliwice, Poland

[2] Czech Univ Life Sci Prague, Fac Environm Sci, Dept Appl Ecol, Kamycka 129, Prague 16521 6, Czech Republic

[3] Silesian Tech Univ, Fac Chem, Dept Inorgan Chem, Analyt Chem & Electrochem, Ul M Strzody 7, PL-44100 Gliwice, Poland

[4] Univ Technol, Fac Civil & Environm Engn, Dept Environm Engn Technol, Ul Narutowicza 11-12, Gdansk 80233, Poland

[5] Univ Life Sci Lublin, Fac Prod Engn, Dept Environm Engn & Geodesy, Ul Leszczynskiego 7, PL-20069 Lublin, Poland

[6] Univ Politecn Cataluna, Dept Civil & Environm Engn, GEMMA Grp Environm Engn & Microbiol, BarcelonaTech, C Jordi Girona 1-3,Bldg D1, E-08034 Barcelona, Spain

来源：

SCIENCE OF THE TOTAL ENVIRONMENT | 2024年 / 912卷

关键词：

Antibiotic resistances; Constructed wetlands; Sulfonamides; Wastewater; ANTIBIOTIC-RESISTANCE; TREATMENT PLANTS; ORGANIC CONTAMINANTS; DOMESTIC SEWAGE; ENVIRONMENT; SULFAMETHOXAZOLE; INTEGRASE; MUNICIPAL; FATE; FLOW;

D O I：

10.1016/j.scitotenv.2023.169195

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Sulfonamides are high-consumption antibiotics that reach the aquatic environment. The threat related to their presence in wastewater and the environment is not only associated with their antibacterial properties, but also with risk of the spread of drug resistance in bacteria. Therefore, the aim of this work was to evaluate the occurrence of eight commonly used sulfonamides, sulfonamide resistance genes (sul1-3) and integrase genes intI1-3 in five full-scale constructed wetlands (CWs) differing in design (including hybrid systems) and in the source of wastewater (agricultural drainage, domestic sewage/surface runoff, and animal runs runoff in a zoo). The CWs were located in low-urbanized areas in Poland and in Czechia. No sulfonamides were detected in the CW treating agricultural tile drainage water. In the other four systems, four sulfonamide compounds were detected. Sulfamethoxazole exhibited the highest concentration in those four CWs and its highest was 12,603.23 +/- 1000.66 ng/L in a CW treating a mixture of domestic sewage and surface runoff. Despite the high removal efficiencies of sulfamethoxazole in the tested CWs (86 %-99 %), it was still detected in the treated wastewater. The sul1 genes occurred in all samples of raw and treated wastewater and their abundance did not change significantly after the treatment process and it was, predominantly, at the level 105 gene copies numbers/mL. Noteworthy, sul2 genes were only found in the influents, and sul3 were not detected. The sulfonamides can be removed in CWs, but their elimination is not complete. However, hybrid CWs treating sewage were superior in decreasing the relative abundance of genes and the concentration of SMX. CWs may play a role in the dissemination of sulfonamide resistance genes of the sul1 type and other determinants of drug resistance, such as the intI1 gene, in the environment, however, the magnitude of this phenomenon is a matter of further research.

引用

页数：11

共 78 条

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