IHB OpenIR  > 水环境工程研究中心  > 期刊论文
Effects of humic acids on phytoextraction of Cu and Cd from sediment by Elodea nuttallii
Wang, Qian; Li, Zhu; Cheng, Shuiping; Wu, Zhenbin; Cheng, SP, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2010
Source PublicationCHEMOSPHERE
ISSN0045-6535
Volume78Issue:5Pages:604-608
AbstractGrowth and metal-accumulation of Elodea nuttallii exposed to Cu and Cd-contaminated sediment were examined and the effects of humic acids on phytoextraction of Cu and Cd were also investigated. The growth of plants were promoted with the increasing concentration of Cu in sediment, while inhibited by Cd during the 21 d exposure. The concentrations of Cu in roots and shoots of E. nuttallii ranged 25-99 mg kg(-1) dry weight (DW) and 23-83 mg kg(-1) DW under different concentration of Cu treatments in sediment at the end of exposure, and they were 0-6.5 mg kg(-1) DW and 0-7.9 mg kg(-1) DW for Cd, respectively. With addition of humic acids from 3.0 to 7.8 g kg(-1) DW, the bioavailability of heavy metals in the sediment were reduced significantly, therefore, the accumulation of Cd was inhibited and the Cd concentrations in roots and shoots of plants decreased. However, as the result of release Cu from sediment into water column with addition of humic acids, and E. nuttallii could uptake Cu from water directly, the Cu concentrations in roots and shoots in plant increased 26-69% and 40-78%, respectively. In conclusion, E. nuttallii could be suitable for remedying Cu and Cd-contaminated sediment in situ as a pioneer species, but for phytoextraction of Cd, the application of humic acids should be careful. (C) 2009 Published by Elsevier Ltd.
KeywordPhytoremediation In Situ Submerged Macrophyte Accumulation
Department[Wang, Qian; Li, Zhu; Cheng, Shuiping; Wu, Zhenbin] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China; [Wang, Qian; Li, Zhu] Chinese Acad Sci, Grad Sch, Beijing 10039, Peoples R China
Subject AreaEnvironmental Sciences
Funding OrganizationNational Major Program of Science and Technology [2008ZX07316-004]; Chinese Academy of Sciences [KZCX2-YW-426] ; National Major Program of Science and Technology [2008ZX07316-004]; Chinese Academy of Sciences [KZCX2-YW-426] ; National Major Program of Science and Technology [2008ZX07316-004]; Chinese Academy of Sciences [KZCX2-YW-426] ; National Major Program of Science and Technology [2008ZX07316-004]; Chinese Academy of Sciences [KZCX2-YW-426]
Indexed BySCI
Language英语
WOS IDWOS:000274370900016
Funding OrganizationNational Major Program of Science and Technology [2008ZX07316-004]; Chinese Academy of Sciences [KZCX2-YW-426] ; National Major Program of Science and Technology [2008ZX07316-004]; Chinese Academy of Sciences [KZCX2-YW-426] ; National Major Program of Science and Technology [2008ZX07316-004]; Chinese Academy of Sciences [KZCX2-YW-426] ; National Major Program of Science and Technology [2008ZX07316-004]; Chinese Academy of Sciences [KZCX2-YW-426]
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Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/13731
Collection水环境工程研究中心_期刊论文
Corresponding AuthorCheng, SP, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Wang, Qian,Li, Zhu,Cheng, Shuiping,et al. Effects of humic acids on phytoextraction of Cu and Cd from sediment by Elodea nuttallii[J]. CHEMOSPHERE,2010,78(5):604-608.
APA Wang, Qian,Li, Zhu,Cheng, Shuiping,Wu, Zhenbin,&Cheng, SP, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.(2010).Effects of humic acids on phytoextraction of Cu and Cd from sediment by Elodea nuttallii.CHEMOSPHERE,78(5),604-608.
MLA Wang, Qian,et al."Effects of humic acids on phytoextraction of Cu and Cd from sediment by Elodea nuttallii".CHEMOSPHERE 78.5(2010):604-608.
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