中国科学院水生生物研究所机构知识库
Advanced  
IHB OpenIR  > 中科院水生所知识产出(2009年前)  > 期刊论文
学科主题: Environmental Sciences
题名: Effects of Cd2+ and Pb2+ on the substrate biofilms in the integrated vertical-flow constructed wetland
作者: Zhang Jinlian ; Cheng Shuiping ; He Feng ; Liang Wei ; Wu Zhenbin
通讯作者: Wu, ZB, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
关键词: Cd2+ ; Pb2+ ; biofilms ; dehydrogenase activity ; polysaccharide content ; integrated vertical-flow constructed wetland (IVCW)
刊名: JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
发表日期: 2008
卷: 20, 期:8, 页:900-906
收录类别: SCI
部门归属: [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
资助者: 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]
摘要: The 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.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/8042
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
Effects of Cd2+ and Pb2+ on the substrate biofilms in the integrated vertical-flow constructed wetland.pdf(303KB)----开放获取--View Download

Recommended Citation:
Zhang Jinlian; Cheng Shuiping; He Feng; Liang Wei; Wu Zhenbin.Effects of Cd2+ and Pb2+ on the substrate biofilms in the integrated vertical-flow constructed wetland,JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2008,20(8):900-906
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Zhang Jinlian]'s Articles
[Cheng Shuiping]'s Articles
[He Feng]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Zhang Jinlian]‘s Articles
[Cheng Shuiping]‘s Articles
[He Feng]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: Effects of Cd2+ and Pb2+ on the substrate biofilms in the integrated vertical-flow constructed wetland.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

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

 

 

Valid XHTML 1.0!
Copyright © 2007-2016  中国科学院水生生物研究所 - Feedback
Powered by CSpace