Tags

Type your tag names separated by a space and hit enter

Reduction of antibiotic resistance genes in municipal wastewater effluent by advanced oxidation processes.
Sci Total Environ. 2016 Apr 15; 550:184-191.ST

Abstract

This study investigated the reduction of antibiotic resistance genes (ARGs), intI1 and 16S rRNA genes, by advanced oxidation processes (AOPs), namely Fenton oxidation (Fe(2+)/H2O2) and UV/H2O2 process. The ARGs include sul1, tetX, and tetG from municipal wastewater effluent. The results indicated that the Fenton oxidation and UV/H2O2 process could reduce selected ARGs effectively. Oxidation by the Fenton process was slightly better than that of the UV/H2O2 method. Particularly, for the Fenton oxidation, under the optimal condition wherein Fe(2+)/H2O2 had a molar ratio of 0.1 and a H2O2 concentration of 0.01molL(-1) with a pH of 3.0 and reaction time of 2h, 2.58-3.79 logs of target genes were removed. Under the initial effluent pH condition (pH=7.0), the removal was 2.26-3.35 logs. For the UV/H2O2 process, when the pH was 3.5 with a H2O2 concentration of 0.01molL(-1) accompanied by 30min of UV irradiation, all ARGs could achieve a reduction of 2.8-3.5 logs, and 1.55-2.32 logs at a pH of 7.0. The Fenton oxidation and UV/H2O2 process followed the first-order reaction kinetic model. The removal of target genes was affected by many parameters, including initial Fe(2+)/H2O2 molar ratios, H2O2 concentration, solution pH, and reaction time. Among these factors, reagent concentrations and pH values are the most important factors during AOPs.

Authors+Show Affiliations

State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, People's Republic of China.State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, People's Republic of China.State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, People's Republic of China. Electronic address: jjgeng@nju.edu.cn.State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, People's Republic of China.State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, People's Republic of China.State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, People's Republic of China.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

26815295

Citation

Zhang, Yingying, et al. "Reduction of Antibiotic Resistance Genes in Municipal Wastewater Effluent By Advanced Oxidation Processes." The Science of the Total Environment, vol. 550, 2016, pp. 184-191.
Zhang Y, Zhuang Y, Geng J, et al. Reduction of antibiotic resistance genes in municipal wastewater effluent by advanced oxidation processes. Sci Total Environ. 2016;550:184-191.
Zhang, Y., Zhuang, Y., Geng, J., Ren, H., Xu, K., & Ding, L. (2016). Reduction of antibiotic resistance genes in municipal wastewater effluent by advanced oxidation processes. The Science of the Total Environment, 550, 184-191. https://doi.org/10.1016/j.scitotenv.2016.01.078
Zhang Y, et al. Reduction of Antibiotic Resistance Genes in Municipal Wastewater Effluent By Advanced Oxidation Processes. Sci Total Environ. 2016 Apr 15;550:184-191. PubMed PMID: 26815295.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Reduction of antibiotic resistance genes in municipal wastewater effluent by advanced oxidation processes. AU - Zhang,Yingying, AU - Zhuang,Yao, AU - Geng,Jinju, AU - Ren,Hongqiang, AU - Xu,Ke, AU - Ding,Lili, Y1 - 2016/01/24/ PY - 2015/08/08/received PY - 2016/01/12/revised PY - 2016/01/14/accepted PY - 2016/1/28/entrez PY - 2016/1/28/pubmed PY - 2016/10/1/medline KW - Advanced oxidation processes KW - Antibiotic resistance genes KW - Fenton oxidation KW - Municipal wastewater effluent KW - UV/H(2)O(2) SP - 184 EP - 191 JF - The Science of the total environment JO - Sci Total Environ VL - 550 N2 - This study investigated the reduction of antibiotic resistance genes (ARGs), intI1 and 16S rRNA genes, by advanced oxidation processes (AOPs), namely Fenton oxidation (Fe(2+)/H2O2) and UV/H2O2 process. The ARGs include sul1, tetX, and tetG from municipal wastewater effluent. The results indicated that the Fenton oxidation and UV/H2O2 process could reduce selected ARGs effectively. Oxidation by the Fenton process was slightly better than that of the UV/H2O2 method. Particularly, for the Fenton oxidation, under the optimal condition wherein Fe(2+)/H2O2 had a molar ratio of 0.1 and a H2O2 concentration of 0.01molL(-1) with a pH of 3.0 and reaction time of 2h, 2.58-3.79 logs of target genes were removed. Under the initial effluent pH condition (pH=7.0), the removal was 2.26-3.35 logs. For the UV/H2O2 process, when the pH was 3.5 with a H2O2 concentration of 0.01molL(-1) accompanied by 30min of UV irradiation, all ARGs could achieve a reduction of 2.8-3.5 logs, and 1.55-2.32 logs at a pH of 7.0. The Fenton oxidation and UV/H2O2 process followed the first-order reaction kinetic model. The removal of target genes was affected by many parameters, including initial Fe(2+)/H2O2 molar ratios, H2O2 concentration, solution pH, and reaction time. Among these factors, reagent concentrations and pH values are the most important factors during AOPs. SN - 1879-1026 UR - https://www.unboundmedicine.com/medline/citation/26815295/Reduction_of_antibiotic_resistance_genes_in_municipal_wastewater_effluent_by_advanced_oxidation_processes_ DB - PRIME DP - Unbound Medicine ER -