DOI: 10.1016/j.watres.2018.04.053
Scopus记录号: 2-s2.0-85046149772
论文题名: Effect of UVA/LED/TiO2 photocatalysis treated sulfamethoxazole and trimethoprim containing wastewater on antibiotic resistance development in sequencing batch reactors
作者: Cai Q. ; Hu J.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 140 起始页码: 251
结束页码: 260
语种: 英语
英文关键词: Antibiotic resistance
; SBR
; Sulfamethoxazole
; Trimethoprim
; UVA/LED/TiO2 photocatalysis
Scopus关键词: Antibiotics
; Batch reactors
; Biological water treatment
; DNA
; Efficiency
; Genes
; Photocatalysis
; Thermomechanical pulping process
; Antibiotic resistance
; Antibiotic resistance genes
; Biological treatment process
; Sequencing batch reactors
; Sulfamethoxazole
; Sulfamethoxazole (SMX)
; Transfer efficiency
; Trimethoprim
; Wastewater treatment
; cotrimoxazole
; titanium dioxide
; water
; antibiotic resistance
; antibiotics
; catalysis
; equipment
; monitoring system
; operations technology
; performance assessment
; photolysis
; pollutant removal
; ultraviolet radiation
; waste treatment
; wastewater treatment
; water treatment
; antibiotic resistance
; Article
; controlled study
; dfr13 gene
; dfrII gene
; dfrV gene
; gene
; integron
; microbial consortium
; nonhuman
; photocatalysis
; plasmid
; priority journal
; sulI gene
; sulII gene
; sulIII gene
; ultraviolet A radiation
; waste water management
英文摘要: Controlling of antibiotics is the crucial step for preventing antibiotic resistance genes (ARGs) dissemination; UV photocatalysis has been identified as a promising pre-treatment technology for antibiotics removal. However, information about the effects of intermediates present in the treated antibiotics wastewater on the downstream biological treatment processes or ARGs development is very limited. In the present study, continuous UVA/LED/TiO2 photocatalysis removed more than 90% of 100 ppb sulfamethoxazole (SMX)/trimethoprim (TMP), the treated wastewater was fed into SBR systems for over one year monitoring. Residual SMX/TMP (2-3 ppb) and intermediates present in the treated wastewater did not adversely affect SBR performance in terms of TOC and TN removal. SMX and TMP resistance genes (sulI, sulII, sulIII, dfrII, dfrV and dfr13) were also quantified in SBRs microbial consortia. Results suggested that continuous feeding of treated SMX/TMP containing wastewaters did not trigger any ARGs promotion during the one year operation. By stopping the input of 100 ppb SMX/TMP, abundance of sulII and dfrV genes were reduced by 83% and 100%, respectively. sulI gene was identified as the most persistence ARG, and controlling of 100 ppb SMX input did not achieve significant removal of sulI gene. A significant correlation between sulI gene and class 1 integrons was found at the level of p = 1.4E-10 (r = 0.94), and sulII gene positively correlated with the plasmid transfer efficiency (r = 2.442E-10, r = 0.87). Continuous input of 100 ppb SMX enhanced plasmid transfer efficiency in the SBR system, resulting in sulII gene abundance increasing more than 40 times. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112712
Appears in Collections: 气候减缓与适应
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作者单位: Department of Civil and Environmental Engineering, National University of Singapore, 10 Kent Ridge Crescent119260, Singapore
Recommended Citation:
Cai Q.,Hu J.. Effect of UVA/LED/TiO2 photocatalysis treated sulfamethoxazole and trimethoprim containing wastewater on antibiotic resistance development in sequencing batch reactors[J]. Water Research,2018-01-01,140