RCEES OpenIR  > 环境化学与生态毒理学国家重点实验室
TiO2@MOF Photocatalyst for the Synergetic Oxidation of Microcystin-LR and Reduction of Cr(VI) in Aqueous Media
Wang, Yarui; Yu, Wanchao; Geng, Fanglan; Zhao, Lixia; Wang, Yawei
2021-10
Source PublicationCATALYSTS
ISSN0045-6535
Volume283Pages:-
AbstractEffects of sulfadiazine on bacterial community and antibiotic resistance genes (ARGs) in drinking water distribution systems (DWDSs) were investigated in this study. Three DWDSs, including sand filtered (SF) DWDSs, granular active carbon (GAC) filtration DWDSs, and UV/H2O2-GAC DWDSs, were used to deliver sand filtered water, GAC filtered water, and UV/H2O2-GAC treated water, respectively. UV/H2O2-GAC filtration can remove the dissolved organic matter effectively, which resulted in the lowest bacterial diversity, biomass and ARGs in effluents and biofilm of DWDSs. When sulfadiazine was added to the sand filtered water, the dehydrogenase concentration and bacterial activity of bacterial community increased in effluents and biofilm of different DWDSs, inducing more extracellular polymeric substances (EPS) production. The proteins increasement percentage was 26.9%, 11.7% and 19.1% in biofilm of three DWDSs, respectively. And the proteins increased to 830.30 +/- 20.56 mu g cm- 2, 687.04 +/- 18.65 mu g cm-2 and 586.07 +/- 16.24 mu g cm-2, respectively. The increase of EPS promoted biofilm formation and increased the chlorine-resistance capability of bacteria. Therefore, the relative abundance of Clostridium_sensu_stricto_1 increased to 12.22%, 10.41% and 0.33% in biofilm of the three DWDSs, respectively. Candidatus_Odyssella also increased in the effluents and biofilm of the three DWDSs. These antibiotic resistance bacteria increase in DWDSs also induced the ARGs promotion, including sul1, sul2, sul3, mexA and class 1 integrons (int1). However, UV/H2O2-GAC filtration induced the lowest increase of dehydrogenase and EPS production through sulfadiazine removal efficiently, resulting in the least bacterial community change and ARGs promotion in UV/H2O2-GAC DWDSs.
Department环境化学与生态毒理学国家重点实验室
KeywordBacterial community Antibiotic resistance genes Extracellular polymeric substances Drinking water distribution systems H2O2-GAC filtration
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/46829
Collection环境化学与生态毒理学国家重点实验室
Affiliation1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, 18 Shuangqing Rd,POB 2871, Beijing 100085, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.UCAS, Hangzhou Inst Adv Study, Sch Environm, Hangzhou 310007, Peoples R China
Recommended Citation
GB/T 7714
Wang, Yarui,Yu, Wanchao,Geng, Fanglan,et al. TiO2@MOF Photocatalyst for the Synergetic Oxidation of Microcystin-LR and Reduction of Cr(VI) in Aqueous Media[J]. CATALYSTS,2021,283:-.
APA Wang, Yarui,Yu, Wanchao,Geng, Fanglan,Zhao, Lixia,&Wang, Yawei.(2021).TiO2@MOF Photocatalyst for the Synergetic Oxidation of Microcystin-LR and Reduction of Cr(VI) in Aqueous Media.CATALYSTS,283,-.
MLA Wang, Yarui,et al."TiO2@MOF Photocatalyst for the Synergetic Oxidation of Microcystin-LR and Reduction of Cr(VI) in Aqueous Media".CATALYSTS 283(2021):-.
Files in This Item: Download All
File Name/Size DocType Version Access License
TiO2@MOF Photocataly(4266KB)期刊论文出版稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang, Yarui]'s Articles
[Yu, Wanchao]'s Articles
[Geng, Fanglan]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, Yarui]'s Articles
[Yu, Wanchao]'s Articles
[Geng, Fanglan]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, Yarui]'s Articles
[Yu, Wanchao]'s Articles
[Geng, Fanglan]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: TiO2@MOF Photocatalyst for the Synergetic Oxidation of Microcystin-LR and Reduction of Cr(VI) in Aqueous Media.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.