DOI: 10.1016/j.watres.2019.02.038
Scopus记录号: 2-s2.0-85062679302
论文题名: COD/sulfate ratio does not affect the methane yield and microbial diversity in anaerobic digesters
作者: Cetecioglu Z. ; Dolfing J. ; Taylor J. ; Purdy K.J. ; Eyice Ö.
刊名: Water Research
ISSN: 431354
出版年: 2019
卷: 155 起始页码: 444
结束页码: 454
语种: 英语
英文关键词: Anaerobic digestion
; COD/Sulfate ratio
; Methanogens
; Sulfate reducers
英文摘要: Anaerobic digestion of organic matter is the major route of biomethane production. However, in the presence of sulfate, sulfate-reducing bacteria (SRB) typically outcompete methanogens, which may reduce or even preclude methane production from sulfate-containing wastewaters. Although sulfate-reduction and methanogenesis can occur simultaneously, our limited understanding of the microbiology of anaerobic digesters treating sulfate-containing wastewaters constrains improvements in the production of methane from these systems. This study tested the effects of carbon sources and chemical oxygen demand-to-sulfate ratio (COD/SO 4 2− ) on the diversity and interactions of SRB and methanogens in an anaerobic digester treating a high-sulfate waste stream. Overall, the data showed that sulfate removal and methane generation occurred in varying efficiencies and the carbon source had limited effect on the methane yield. Importantly, the results demonstrated that methanogenic and SRB diversities were only affected by the carbon source and not by the COD/SO 4 2− ratio. © 2019 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/121883
Appears in Collections: 气候变化事实与影响
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作者单位: School of Chemical Science and Engineering, KTH Royal Institute of TechnologySE-100 44, Sweden; School of Life Sciences, University of WarwickCV4 7AL, United Kingdom; School of Engineering, Newcastle UniversityNE1 7RU, United Kingdom; School of Biological and Chemical Sciences, Queen Mary University of LondonE1 4NS, United Kingdom
Recommended Citation:
Cetecioglu Z.,Dolfing J.,Taylor J.,et al. COD/sulfate ratio does not affect the methane yield and microbial diversity in anaerobic digesters[J]. Water Research,2019-01-01,155