DOI: 10.1016/j.watres.2018.05.058
Scopus记录号: 2-s2.0-85049330622
论文题名: Surface properties of activated sludge-derived biochar determine the facilitating effects on Geobacter co-cultures
作者: Zhang P. ; Zheng S. ; Liu J. ; Wang B. ; Liu F. ; Feng Y.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 142 起始页码: 441
结束页码: 451
语种: 英语
英文关键词: Biochar
; Conductivity
; Geobacter
; Surface charge
; Surface functional group
Scopus关键词: Electric conductivity
; Electron transitions
; Electron transport properties
; Metabolism
; Physiology
; Surface charge
; Wastewater treatment
; Bio chars
; Direct electron transfer
; Discharging process
; Geobacter
; Geobacter sulfurreducens
; Pyrolysis temperature
; Succinate production
; Surface functional groups
; Activated sludge process
; biochar
; carbon
; functional group
; succinic acid
; unclassified drug
; activated sludge
; bacterium
; biochar
; conductivity
; electric field
; electron
; pyrolysis
; temperature
; wastewater treatment
; activated sludge
; alcohol metabolism
; Article
; bacterial cell
; coculture
; conductance
; electron transport
; Geobacter
; nonhuman
; priority journal
; pyrolysis
; surface property
; temperature
; Geobacter
; Geobacter metallireducens
; Geobacter sulfurreducens
英文摘要: Biochar has been reported to facilitate direct interspecies electron transfer (DIET) in co-cultures between Geobacter metallireducens and Geobacter sulfurreducens, a model defined co-culture system. In this study, the biochar derived from the activated sludge with different pyrolysis temperature was added to the co-cultures, the ethanol metabolism rates (Re) and succinate production rates (Rs) of co-culture with biochar-800 were 1.05- and 1.42-fold higher than that without addition. The results suggested that the conductivity of the biochar did not correlate with the facilitating effect of the biochar on the co-culture metabolism. Furthermore, the surface functional group and surface charge of biochar may also influence the facilitating effect on the interspecies electron transfer between the two Geobacter cells. Based on these results, it supported that the electron transfer depending on the charging and discharging process of the surface functional groups might play a major role in facilitating the direct electron transfer process by the biochar derived from activated sludge here. This study could shed light on the better understanding of the bacteria-biochar electron transfer system and the potential utilization of the biochar in the environmental wastewater treatments. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112627
Appears in Collections: 气候减缓与适应
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作者单位: State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, No 73 Huanghe Road, Nangang District, Harbin, 150090, China; Key Laboratory of Coastal Biology and Biological Resources Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, No 17 Chunhui Road, Laishan District, Yantai, Shandong 264003, China
Recommended Citation:
Zhang P.,Zheng S.,Liu J.,et al. Surface properties of activated sludge-derived biochar determine the facilitating effects on Geobacter co-cultures[J]. Water Research,2018-01-01,142