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The elimination of cell-associated and non-cell-associated antibiotic resistance genes during membrane filtration processes: A review
Liu, Hang; Li, Ziqi; Qiang, Zhimin; Karanfil, Tanju; Yang, Min; Liu, Chao
2022-08-10
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume833Issue:0Pages:155250
AbstractWith increasing water reuse as a sustainable water management strategy, antibiotic resistance genes (ARGs) which have been identified as emerging contaminants in wastewater are attracting global attentions. Given that wastewater treatment plants are now well-established as a sink and source of ARGs in both cell-associated and non-cell-associated forms, a need is acknowledged to reduce their proliferation and protect public health. Due to their different characteristics, cell-associated and non-cell-associated ARGs may have distinct responses to membrane filtration processes which are widely used as advanced treatment to the secondary effluent. This review improves the understanding of the abundance of cell-associated and non-cell-associated ARGs in wastewaters and the secondary effluents and compares the elimination of ARGs in cell-associated and non-cell-associated forms by low-pressure and high-pressure membrane filtration processes. The former process reduces the concentration of cell-associated ARGs by more than 2-logs on average. An increase of the retention efficiency of non-cell-associated ARGs is observed with decreasing molecular weight cut-offs in ultrafiltration. The high-pressure membrane filtration (i.e., nanofiltration and reverse osmosis) can effectively eliminate both cell-associated and non-cell-associated ARGs, with averagely more than 4.6-log reduction. In general, the two forms of ARGs can be removed from water by the membrane filtration processes via the effects of size exclusion, adsorption, and electrostatic repulsion. The size and conformation of cell-associated and non-cell-associated ARGs, characteristics of membranes, coexisting substances, and biofilm formation influence ARG retention. Accumulation and potential proliferation of cell-associated and non-cell-associated ARGs in foulants and concentrate and corresponding control strategies warrant future research.
Department中国科学院饮用水科学与技术重点实验室 ; 中国科学院饮用水科学与技术重点实验室
KeywordMUNICIPAL WASTE-WATER DISINFECTION BY-PRODUCTS TREATMENT PLANTS REMOVAL BIOREACTOR DNA EFFLUENT BACTERIA SLUDGE ULTRAFILTRATION
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/47907
Collection中国科学院饮用水科学与技术重点实验室
Corresponding AuthorLiu, Chao
Affiliation1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Liu, Hang,Li, Ziqi,Qiang, Zhimin,et al. The elimination of cell-associated and non-cell-associated antibiotic resistance genes during membrane filtration processes: A review[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2022,833(0):155250.
APA Liu, Hang,Li, Ziqi,Qiang, Zhimin,Karanfil, Tanju,Yang, Min,&Liu, Chao.(2022).The elimination of cell-associated and non-cell-associated antibiotic resistance genes during membrane filtration processes: A review.SCIENCE OF THE TOTAL ENVIRONMENT,833(0),155250.
MLA Liu, Hang,et al."The elimination of cell-associated and non-cell-associated antibiotic resistance genes during membrane filtration processes: A review".SCIENCE OF THE TOTAL ENVIRONMENT 833.0(2022):155250.
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