Conversion and speculated pathway of methane anaerobic oxidation co-driven by nitrite and sulfate
文献类型：期刊论文
| 作者 | Xue, Song; Chai, Fengguang; Li, Lin; Wang, Wenwen
|
| 刊名 | ENVIRONMENTAL RESEARCH
 |
| 出版日期 | 2022-05-15 |
| 卷号 | 208期号:0页码:1-9 |
| ISSN号 | 0013-9351 |
| 关键词 | AUTOTROPHIC DENITRIFICATION METHANOTROPHS THIOBACILLUS ENRICHMENT REDUCTION DIGESTION BIOFILTER GROWTH SEA |
| 英文摘要 | Anaerobic sludge from sewage treatment was employed to derive a microbial colony that is capable of anaerobic oxidation of methane coupled with sulfate reduction and denitrification. Investigations revealed that methane can be oxidized with sulfate reduction and denitrification. When sulfate and nitrite acted as electron acceptors together, the rates and amount of methane conversion were higher than that when sulfate or nitrite alone was employed as an electron acceptor. The oxidation rate and amount of methane conversion reached 1.9 mg/ (d center dot gVSS) and 22.24 mg, respectively. Methanotrophic bacteria, such as M. oxyfera, and Methylocystis sp., sulfatereducing bacteria (SRB), e.g. Desulfosporosinus sp., and Desulfuromonas sp.; and denitrification bacteria, such as Hyphomicrobium sp., and Diaphorobacter sp., presented in the bacterial community. Anaerobic methanotrophic archaea (ANME), including Methanosaeta sp. and Methanobacterium sp. were found in the archaeal community. These findings indicate the coexistence of ANME, SRB and denitrification bacteria in the system. Nitrite reduction coupled with methane oxidation was performed independently by M. oxyfera during which limited oxygen generated. The oxygen released may be utilized by methanotrophic bacteria to produce organics, which could be used by denitrifying bacteria to reduce nitrite. Methanotrophic archaea could also oxidize methane to carbon dioxide or organics by reverse methanogenesis whereas sulfate was reduced to sulfide by SRB. This study opens possibility for biotechnological process of sulfate reduction and denitrification with methane as electron donor and provides a method for the synergistic treatment of wastewater containing sulfate/nitrite and waste gas containing methane. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47681]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 通讯作者 | Li, Lin |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China 2.Tsinghua Univ, Environm Simulat & Pollut Control State Key Joint, State Environm Protect Key Lab Microorganism Appl, Beijing 100084, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Univ Chinese Acad Sci, Natl Engn Lab VOCs Pollut Control Mat & Technol, Beijing 101408, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xue, Song,Chai, Fengguang,Li, Lin,et al. Conversion and speculated pathway of methane anaerobic oxidation co-driven by nitrite and sulfate[J]. ENVIRONMENTAL RESEARCH,2022,208(0):1-9. |
| APA | Xue, Song,Chai, Fengguang,Li, Lin,&Wang, Wenwen.(2022).Conversion and speculated pathway of methane anaerobic oxidation co-driven by nitrite and sulfate.ENVIRONMENTAL RESEARCH,208(0),1-9. |
| MLA | Xue, Song,et al."Conversion and speculated pathway of methane anaerobic oxidation co-driven by nitrite and sulfate".ENVIRONMENTAL RESEARCH 208.0(2022):1-9. |
入库方式： OAI收割
来源：生态环境研究中心
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