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Removal of antibiotic resistant bacteria and antibiotic resistance genes in wastewater effluent by UV-activated persulfate.
J Hazard Mater. 2020 04 15; 388:122070.JH

Abstract

The emerging antibiotic resistant bacteria (ARB) and antibiotic resistance genes (ARGs) are increasingly appreciated to be as important as microbial contaminants. This paper focused on UV-activated persulfate (UV/PS), an advanced oxidation process, in removing ARB and ARGs from secondary wastewater effluent. Results showed that the inactivation efficiency of macrolides-resistant bacteria (MRB), sulfonamides-resistant bacteria (SRB), tetracyclines-resistant bacteria (TRB) and quinolones-resistant bacteria (QRB) by UV/PS reached 96.6 %, 94.7 %, 98.0 % and 99.9 % in 10 min, respectively. UV/PS also showed significant removal efficiency on ARGs. The reduction of total ARGs reached 3.84 orders of magnitude in UV/PS which is more than that in UV by 0.56 log. Particularly, the removal of mobile genetic elements (MGE) which might favor the horizontal gene transfer of ARGs among different microbial achieved 76.09 % by UV/PS. High-throughput sequencing revealed that UV/PS changed the microbial community. The proportions of Proteobacteria and Actinobacteria that pose human health risks were 4.25 % and 1.6 % less than UV, respectively. Co-occurrence analyzes indicated that ARGs were differentially contributed by bacterial taxa. In UV/PS system, hydroxyl radical and sulfate radical contributed to the removal of bacteria and ARGs. Our study provided a new method of UV/PS to remove ARGs and ARB for wastewater treatment.

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Authors+Show Affiliations

State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.

State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.

State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.

State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.

State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.

State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.

State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.

State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.

State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.

State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.

State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China. Electronic address: caogl@hit.edu.cn.

MeSH

Anti-Bacterial AgentsBacteriaDrug Resistance, BacterialGenes, BacterialMacrolidesQuinolonesSulfatesSulfonamidesTetracyclinesUltraviolet RaysWaste WaterWater PollutantsWater Purification

Pub Type(s)

Journal Article

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

Language

eng

PubMed ID

31954307

Citation

Zhou, Chun-Shuang, et al. "Removal of Antibiotic Resistant Bacteria and Antibiotic Resistance Genes in Wastewater Effluent By UV-activated Persulfate." Journal of Hazardous Materials, vol. 388, 2020, p. 122070.

Zhou CS, Wu JW, Dong LL, et al. Removal of antibiotic resistant bacteria and antibiotic resistance genes in wastewater effluent by UV-activated persulfate. J Hazard Mater. 2020;388:122070.

Zhou, C. S., Wu, J. W., Dong, L. L., Liu, B. F., Xing, D. F., Yang, S. S., Wu, X. K., Wang, Q., Fan, J. N., Feng, L. P., & Cao, G. L. (2020). Removal of antibiotic resistant bacteria and antibiotic resistance genes in wastewater effluent by UV-activated persulfate. Journal of Hazardous Materials, 388, 122070. https://doi.org/10.1016/j.jhazmat.2020.122070

Zhou CS, et al. Removal of Antibiotic Resistant Bacteria and Antibiotic Resistance Genes in Wastewater Effluent By UV-activated Persulfate. J Hazard Mater. 2020 04 15;388:122070. PubMed PMID: 31954307.

* Article titles in AMA citation format should be in sentence-case

TY - JOUR T1 - Removal of antibiotic resistant bacteria and antibiotic resistance genes in wastewater effluent by UV-activated persulfate. AU - Zhou,Chun-Shuang, AU - Wu,Ji-Wen, AU - Dong,Li-Li, AU - Liu,Bing-Feng, AU - Xing,De-Feng, AU - Yang,Shan-Shan, AU - Wu,Xiu-Kun, AU - Wang,Qi, AU - Fan,Jia-Ning, AU - Feng,Li-Ping, AU - Cao,Guang-Li, Y1 - 2020/01/10/ PY - 2019/10/24/received PY - 2020/01/07/revised PY - 2020/01/10/accepted PY - 2020/1/19/pubmed PY - 2020/12/31/medline PY - 2020/1/19/entrez KW - ARB KW - ARGs KW - Advanced oxidation KW - Bacterial community structure KW - Free radicals SP - 122070 EP - 122070 JF - Journal of hazardous materials JO - J Hazard Mater VL - 388 N2 - The emerging antibiotic resistant bacteria (ARB) and antibiotic resistance genes (ARGs) are increasingly appreciated to be as important as microbial contaminants. This paper focused on UV-activated persulfate (UV/PS), an advanced oxidation process, in removing ARB and ARGs from secondary wastewater effluent. Results showed that the inactivation efficiency of macrolides-resistant bacteria (MRB), sulfonamides-resistant bacteria (SRB), tetracyclines-resistant bacteria (TRB) and quinolones-resistant bacteria (QRB) by UV/PS reached 96.6 %, 94.7 %, 98.0 % and 99.9 % in 10 min, respectively. UV/PS also showed significant removal efficiency on ARGs. The reduction of total ARGs reached 3.84 orders of magnitude in UV/PS which is more than that in UV by 0.56 log. Particularly, the removal of mobile genetic elements (MGE) which might favor the horizontal gene transfer of ARGs among different microbial achieved 76.09 % by UV/PS. High-throughput sequencing revealed that UV/PS changed the microbial community. The proportions of Proteobacteria and Actinobacteria that pose human health risks were 4.25 % and 1.6 % less than UV, respectively. Co-occurrence analyzes indicated that ARGs were differentially contributed by bacterial taxa. In UV/PS system, hydroxyl radical and sulfate radical contributed to the removal of bacteria and ARGs. Our study provided a new method of UV/PS to remove ARGs and ARB for wastewater treatment. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/31954307/Removal_of_antibiotic_resistant_bacteria_and_antibiotic_resistance_genes_in_wastewater_effluent_by_UV_activated_persulfate_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(20)30056-X DB - PRIME DP - Unbound Medicine ER -