CAS OpenIR  > 研究所(批量导入)
Population dynamics and spatial distribution of microbial species in multispecies biofilms under the action of direct electric current
Alternative TitleChin. Sci. Bull.
Cao, HB; Li, XG; Wu, JC; Zhong, FL; Zhang, Y
2003-12-01
Source PublicationCHINESE SCIENCE BULLETIN
ISSN1001-6538
Volume48Issue:24Pages:2688-2693
AbstractThe metabolism, population dynamics and spatial distribution of nitrifying bacteria and heterotrophs in biofilms under the action of direct electric current were investigated by using the micro-slicing technique. The nitrification rate of nitrifying bacteria was severely inhibited by a current over 10 Am-2 at lower C/N ratios. Compared to heterotrophs, the nitrifying bacteria in the surface biofilms were severely inhibited, resulting in a significant decrease in bacterial density. An increase in current density narrowed the less current-sensitive inner biofilm region, and in addition the density of NO2-oxidizers decreased more significantly than that of NH4-oxidizers in the surface biofilms probably due to electrochemical reactions at the anode. However, the effect of current on both the population dynamics and the spatial distribution of the microbial species was less significant at larger C/N ratios.; The metabolism, population dynamics and spatial distribution of nitrifying bacteria and heterotrophs in biofilms under the action of direct electric current were investigated by using the micro-slicing technique. The nitrification rate of nitrifying bacteria was severely inhibited by a current over 10 Am-2 at lower C/N ratios. Compared to heterotrophs, the nitrifying bacteria in the surface biofilms were severely inhibited, resulting in a significant decrease in bacterial density. An increase in current density narrowed the less current-sensitive inner biofilm region, and in addition the density of NO2-oxidizers decreased more significantly than that of NH4-oxidizers in the surface biofilms probably due to electrochemical reactions at the anode. However, the effect of current on both the population dynamics and the spatial distribution of the microbial species was less significant at larger C/N ratios.
KeywordNitrifying Bacteria Heterotrophs Biofilm Direct Electric Current Population Dynamics
SubtypeArticle
WOS HeadingsScience & Technology
URL查看原文
Indexed BySCI
Language英语
WOS KeywordBACTERIA ; METABOLISM
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000188504500006
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/5326
Collection研究所(批量导入)
Affiliation1.Tianjin Univ, Sch Chem Engn & Technol, Chem Engn Res Ctr, Tianjin 300072, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Cao, HB,Li, XG,Wu, JC,et al. Population dynamics and spatial distribution of microbial species in multispecies biofilms under the action of direct electric current[J]. CHINESE SCIENCE BULLETIN,2003,48(24):2688-2693.
APA Cao, HB,Li, XG,Wu, JC,Zhong, FL,&Zhang, Y.(2003).Population dynamics and spatial distribution of microbial species in multispecies biofilms under the action of direct electric current.CHINESE SCIENCE BULLETIN,48(24),2688-2693.
MLA Cao, HB,et al."Population dynamics and spatial distribution of microbial species in multispecies biofilms under the action of direct electric current".CHINESE SCIENCE BULLETIN 48.24(2003):2688-2693.
Files in This Item:
File Name/Size DocType Version Access License
Populationdynami_省略_(213KB) 限制开放CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Cao, HB]'s Articles
[Li, XG]'s Articles
[Wu, JC]'s Articles
Baidu academic
Similar articles in Baidu academic
[Cao, HB]'s Articles
[Li, XG]'s Articles
[Wu, JC]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Cao, HB]'s Articles
[Li, XG]'s Articles
[Wu, JC]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

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