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Microbial mercury methylation potential in a large-scale municipal solid waste landfill, China

文献类型：期刊论文

作者An, Yuwei1,2,3; Zhang, Rui2; Yang, Shu4,7; Wang, Yangqing2; Lei, Yu2; Peng, Shaohong5; Song, Liyan2,6,8
刊名WASTE MANAGEMENT
出版日期2022-05-15
卷号145页码:102-111
关键词Mercury MeHg Landfills Microbial mercury methylation hgcA
ISSN号0956-053X
DOI10.1016/j.wasman.2022.04.038
通讯作者Yang, Shu(yangshu@cqu.edu.cn) ; Song, Liyan(songliyan@cigit.ac.cn)
英文摘要Landfills harbor ideal conditions for microbial mercury methylation. However, the levels and distribution of mercury (Hg) and methylmercury (MeHg), potential microbial Hg methylation, and their linkage within landfills are largely unknown. In the present study, total mercury (THg), MeHg, the Hg methylation gene (hgcA) and mer operon were quantified in 30 waste samples from different depths (0-30 m) at 5 locations within a large-scale landfill in China. The average concentrations of THg and MeHg in the solid waste samples were 1422.91 ng/g and 3.15 ng/g, respectively. THg (up to 14405.29 ng/g) and MeHg (up to 10.42 ng/g) have high concentrations in the middle part (10-15 m) along the depth profiles. The concentration of THg was strongly positively (both p < 0.05) correlated with the MeHg concentration and the relative abundance of hgcA, indicating that the THg concentration can play an important role in microbial Hg methylation. The hgcA genes were detected in most samples and mer operon were detected in all samples. Combined hgcA qPCR and metagenomics data showed that Archaea Methanofollis may mainly account for Hg methylation within landfills. These findings provide funda-mental knowledge on Hg cycles in landfills.
资助项目National Natural Science Foundation of China[52000016] ; National Natural Science Foundation of China[51578642] ; Natural Science Foundation of Chongqing[cstc2020jcyj-bshX0093] ; Open Fund of Guangdong ProvincialKey Laboratory of Petrochemical Pollution Process and Control, Guangdong University of Petrochemical Technology[2018B030322017]
WOS研究方向Engineering ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000799589800011
出版者PERGAMON-ELSEVIER SCIENCE LTD
源URL[http://119.78.100.138/handle/2HOD01W0/16293]  
专题中国科学院重庆绿色智能技术研究院
通讯作者Yang, Shu; Song, Liyan
作者单位1.Chongqing Jiaotong Univ, Chongqing 400074, Peoples R China
2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
3.Univ Chinese Acad Sci, Chongqing Sch, Chongqing 400714, Peoples R China
4.Chongqing Univ, Key Lab Three Gorges Reservoir Reg Ecoenvironm, Minist Educ, Chongqing 400045, Peoples R China
5.Guangdong Univ Petrochem Technol, Guangdong Prov Key Lab Petrochem Pollut Proc & Con, Maoming 525000, Peoples R China
6.Anhui Univ, Sch Resources & Environm Engn, Hefei 230601, Peoples R China
7.174 Shapingba St, Chongqing 400045, Peoples R China
8.266 Fangzhen Ave,Shuitu High-Tech Pk,Beibei, Chongqing 400714, Peoples R China
推荐引用方式
GB/T 7714		 An, Yuwei,Zhang, Rui,Yang, Shu,et al. Microbial mercury methylation potential in a large-scale municipal solid waste landfill, China[J]. WASTE MANAGEMENT,2022,145:102-111.
APA An, Yuwei.,Zhang, Rui.,Yang, Shu.,Wang, Yangqing.,Lei, Yu.,...&Song, Liyan.(2022).Microbial mercury methylation potential in a large-scale municipal solid waste landfill, China.WASTE MANAGEMENT,145,102-111.
MLA An, Yuwei,et al."Microbial mercury methylation potential in a large-scale municipal solid waste landfill, China".WASTE MANAGEMENT 145(2022):102-111.

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来源：重庆绿色智能技术研究院

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