New dechlorination products and mechanisms of tris(2-chloroethyl) phosphate by an anaerobic enrichment culture from a vehicle dismantling site
文献类型：期刊论文
| 作者 | Yang, Sen2,3,7; Wu, Junhong2,3,7; Wang, Heli2,3,7; Yang, Qian2,3,7; Zhang, Huanheng1; Yang, Lihua4; Li, Dan6; Deng, Yirong5; Zhong, Yin2,3; Peng, Ping'an2,3 |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2023-12-01 |
| 卷号 | 338页码:10 |
| 关键词 | TCEP Vehicle dismantling Reductive dechlorination Hydrolytic dechlorination Dehalococcoides |
| ISSN号 | 0269-7491 |
| DOI | 10.1016/j.envpol.2023.122704 |
| 英文摘要 | End-of-life vehicles (ELVs) dismantling sites are the notorious hotspots of chlorinated organophosphate esters (Cl-OPEs). However, the microbial-mediated dechlorination of Cl-OPEs at such sites has not yet been explored. Herein, the dechlorination products, pathways and mechanisms of tris(2-chloroethyl) phosphate (TCEP, a representative Cl-OPE) by an anaerobic enrichment culture (ZNE) from an ELVs dismantling plant were investigated. Our results showed that dechlorination of TCEP can be triggered by reductive transformation to form bis (2-chloroethyl) phosphate (BCEP), mono-chloroethyl phosphate (MCEP) and by hydrolytic dechlorination to form bis(2-chloroethyl) 2-hydroxyethyl phosphate (TCEP-OH), 2-chloroethyl bis(2-hydroxyethyl) phosphate (TCEP-2OH), 2-chloroethyl (2-hydroxyethyl) hydrogen phosphate (BCEP-OH). The combination of 16S rRNA gene amplicon sequencing, quantitative real-time PCR (qPCR) and metagenomics revealed that the Dehalococcoides played an important role in the reductive transformation of TCEP to BCEP and MCEP. A high-quality metagenome-assembled genome (completeness >99% and contamination <1%) of Dehalococcoides was obtained. The sulfate-reducing bacteria harboring haloacid dehalogenase genes (had) may be responsible for the hydrolytic dechlorination of TCEP. These findings provide insights into microbial-mediated anaerobic transformation products and mechanisms of TCEP at ELVs dismantling sites, having implications for the environmental fate and risk assessment of Cl-OPEs at those sites. |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001101090200001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/78991]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Zhong, Yin |
| 作者单位 | 1.Guangzhou Environm Protect Investment Grp Co Ltd, Guangzhou 510016, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem & Guangdong Hong Kong, Guangzhou 510640, Peoples R China 3.Guangdong Prov Key Lab Environm Protect & Resource, Guangzhou 510640, Peoples R China 4.Sun Yat Sen Univ, Guangdong Prov Key Lab Marine Resources & Coastal, Sch Marine Sci, South China Sea Resource Exploitat & Protect Colla, Guangzhou 510275, Peoples R China 5.Guangdong Prov Acad Environm Sci, Guangdong Key Lab Contaminated Sites Environm Mana, Guangzhou 510045, Peoples R China 6.Dongguan Univ Technol, Sch Environm & Civil Engn, Dongguan 523808, Peoples R China 7.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Sen,Wu, Junhong,Wang, Heli,et al. New dechlorination products and mechanisms of tris(2-chloroethyl) phosphate by an anaerobic enrichment culture from a vehicle dismantling site[J]. ENVIRONMENTAL POLLUTION,2023,338:10. |
| APA | Yang, Sen.,Wu, Junhong.,Wang, Heli.,Yang, Qian.,Zhang, Huanheng.,...&Peng, Ping'an.(2023).New dechlorination products and mechanisms of tris(2-chloroethyl) phosphate by an anaerobic enrichment culture from a vehicle dismantling site.ENVIRONMENTAL POLLUTION,338,10. |
| MLA | Yang, Sen,et al."New dechlorination products and mechanisms of tris(2-chloroethyl) phosphate by an anaerobic enrichment culture from a vehicle dismantling site".ENVIRONMENTAL POLLUTION 338(2023):10. |
入库方式： OAI收割
来源：广州地球化学研究所
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