IHB OpenIR  > 期刊论文
Effects of Cd2+ and Pb2+ on the substrate biofilms in the integrated vertical-flow constructed wetland
Zhang Jinlian; Cheng Shuiping; He Feng; Liang Wei; Wu Zhenbin; Wu, ZB, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2008
Source PublicationJOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
Volume20Issue:8Pages:900-906
AbstractThe effects of single Cd2+ and Pb2+, and combined Cd2+ and Pb2+ on dehydrogenase activity and polysaccharide content of the substrate biofilms in the integrated vertical-flow constructed wetland (IVCW) were studied. Dehydrogenase activities decreased linearly with the increasing concentrations of Cd2+ and Pb2+ at different times (6, 24, 72, and 120 h). The activities at both 6 and 24 h were significantly higher than that at 72 and 120 h in the case of single and combined treatments. The single Cd2+ and Pb2+ treatments significantly inhibited dehydrogenase activities at concentrations in excess of 20 mu mol/L Cd2+ and 80 mu mol/L Pb2+, respectively. The inhibitory effect of Cd2+ was much greater than that of Pb2+. At the same time, the combined treatment of Cd2+ and Pb2+ Significantly inhibited dehydrogenase activities at all five concentrations studied and the lowest combined concentration was 1.25 mu mol/L Cd2+ and 5 mu mol/L Pb2+. A synergistic effect of Cd2+ and Pb2+ was observed. On the other hand, polysaccharide contents varied unpredictably with the increasing concentrations of Cd2+ and Pb2+ and extended experimental time. There were no significant statistical differences within the range of concentration and time studied, whether singly or in combination. These results implied that the effects of heavy metals on biofilms should be a concern for the operation and maintenance of constructed wetlands.
KeywordCd2++ Pb2++ Biofilms Dehydrogenase Activity Polysaccharide Content Integrated Vertical-flow Constructed Wetland (Ivcw)
Department[Zhang Jinlian; Cheng Shuiping; He Feng; Liang Wei; Wu Zhenbin] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China; [Zhang Jinlian] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Subject AreaEnvironmental Sciences
Funding OrganizationChinese Academy of Sciences [KSCX2-SW-102]; M-Tech Research and Development Program (863) of China [2002AA601021]; National Natural Science Foundation of China [20177017]; Key Project of Natural Science Fund of China [30623001] ; Chinese Academy of Sciences [KSCX2-SW-102]; M-Tech Research and Development Program (863) of China [2002AA601021]; National Natural Science Foundation of China [20177017]; Key Project of Natural Science Fund of China [30623001] ; Chinese Academy of Sciences [KSCX2-SW-102]; M-Tech Research and Development Program (863) of China [2002AA601021]; National Natural Science Foundation of China [20177017]; Key Project of Natural Science Fund of China [30623001] ; Chinese Academy of Sciences [KSCX2-SW-102]; M-Tech Research and Development Program (863) of China [2002AA601021]; National Natural Science Foundation of China [20177017]; Key Project of Natural Science Fund of China [30623001]
Indexed BySCI
Language英语
Funding OrganizationChinese Academy of Sciences [KSCX2-SW-102]; M-Tech Research and Development Program (863) of China [2002AA601021]; National Natural Science Foundation of China [20177017]; Key Project of Natural Science Fund of China [30623001] ; Chinese Academy of Sciences [KSCX2-SW-102]; M-Tech Research and Development Program (863) of China [2002AA601021]; National Natural Science Foundation of China [20177017]; Key Project of Natural Science Fund of China [30623001] ; Chinese Academy of Sciences [KSCX2-SW-102]; M-Tech Research and Development Program (863) of China [2002AA601021]; National Natural Science Foundation of China [20177017]; Key Project of Natural Science Fund of China [30623001] ; Chinese Academy of Sciences [KSCX2-SW-102]; M-Tech Research and Development Program (863) of China [2002AA601021]; National Natural Science Foundation of China [20177017]; Key Project of Natural Science Fund of China [30623001]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/8042
Collection期刊论文
Corresponding AuthorWu, ZB, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Zhang Jinlian,Cheng Shuiping,He Feng,et al. Effects of Cd2+ and Pb2+ on the substrate biofilms in the integrated vertical-flow constructed wetland[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2008,20(8):900-906.
APA Zhang Jinlian,Cheng Shuiping,He Feng,Liang Wei,Wu Zhenbin,&Wu, ZB, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.(2008).Effects of Cd2+ and Pb2+ on the substrate biofilms in the integrated vertical-flow constructed wetland.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,20(8),900-906.
MLA Zhang Jinlian,et al."Effects of Cd2+ and Pb2+ on the substrate biofilms in the integrated vertical-flow constructed wetland".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 20.8(2008):900-906.
Files in This Item:
File Name/Size DocType Version Access License
Effects of Cd2+ and (303KB) 开放获取--View Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhang Jinlian]'s Articles
[Cheng Shuiping]'s Articles
[He Feng]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhang Jinlian]'s Articles
[Cheng Shuiping]'s Articles
[He Feng]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhang Jinlian]'s Articles
[Cheng Shuiping]'s Articles
[He Feng]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Effects of Cd2+ and Pb2+ on the substrate biofilms in the integrated vertical-flow constructed wetland.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

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