RCEES OpenIR  > 大气环境与污染控制实验室
Removal of methylmercury and its potential relationship to microbiota in sludge anaerobic digestion under thermal hydrolysis
Liu, Jibao; He, Xianglin; Zhong, Hui; Lei, Pei; Zhang, Junya; Xu, Yufeng; Wei, Yuansong
2022-03
Source PublicationBIORESOURCE TECHNOLOGY
ISSN0960-8524
Volume347Issue:0Pages:126394
AbstractReducing health risk of mercury (Hg)/methylmercury (MeHg) in sewage sludge is vital to its land application. This study revealed that thermal hydrolysis reduced MeHg content both during pretreatment process and subsequent anaerobic digestion (AD), which resulted in decrease of MeHg content from 4.24 ng/g to 0.95 ng/g after thermal hydrolysis (150 degrees C) and further decreased to 0.39 ng/g after AD. Notably, thermal hydrolysis at high temperature (120 degrees C and 150 degrees C) promoted both Hg methylation and MeHg demethylation rather than the control or at low temperature (100 degrees C). Hg methylation dominated in hydrolysis and acidogenesis stage, whereas MeHg demethylation dominated in methanogenesis stage. Though abundance of related genes (HgcA and merA) was dramatically reduced, Ruminococcaceae, Peptococcaceae, and Lachnospiraceae were potentially Hg methylators in hydrolysis and acidogenesis stage. Whereas, MeHg demethylation dominated in the late period of AD due to the improved syntrophic methanogenesis and possibly reduced Hg2+ biodegradability by precipitation.
Department大气环境与污染控制实验室 ; 大气环境与污染控制实验室
KeywordMERCURY METHYLATION ENVIRONMENT COMMUNITY ENHANCE SEWAGE CHINA
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/47423
Collection大气环境与污染控制实验室
Affiliation1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100085, Peoples R China
2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resources Reuse, Nanjing 210046, Peoples R China
Recommended Citation
GB/T 7714
Liu, Jibao,He, Xianglin,Zhong, Hui,et al. Removal of methylmercury and its potential relationship to microbiota in sludge anaerobic digestion under thermal hydrolysis[J]. BIORESOURCE TECHNOLOGY,2022,347(0):126394.
APA Liu, Jibao.,He, Xianglin.,Zhong, Hui.,Lei, Pei.,Zhang, Junya.,...&Wei, Yuansong.(2022).Removal of methylmercury and its potential relationship to microbiota in sludge anaerobic digestion under thermal hydrolysis.BIORESOURCE TECHNOLOGY,347(0),126394.
MLA Liu, Jibao,et al."Removal of methylmercury and its potential relationship to microbiota in sludge anaerobic digestion under thermal hydrolysis".BIORESOURCE TECHNOLOGY 347.0(2022):126394.
Files in This Item: Download All
File Name/Size DocType Version Access License
Removal of methylmer(13183KB)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
[Liu, Jibao]'s Articles
[He, Xianglin]'s Articles
[Zhong, Hui]'s Articles
Baidu academic
Similar articles in Baidu academic
[Liu, Jibao]'s Articles
[He, Xianglin]'s Articles
[Zhong, Hui]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Liu, Jibao]'s Articles
[He, Xianglin]'s Articles
[Zhong, Hui]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Removal of methylmercury and its potential relationship to microbiota in sludge anaerobic digestion under thermal hydrolysis.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

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