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  1. 120 山岳科学総合研究所
  2. 1202 紀要・刊行物
  3. 12022 信州大学山地水環境教育研究センター 研究報告
  4. Vol. 06

CharOphytes as a hyperaccumulator of lleaVy metals: role of calcirlCation and applicability in restoration of polluted water bodies

http://hdl.handle.net/10091/10243
9584eae4-f14c-4d9b-9fd9-855232d52171
名前 / ファイル ライセンス アクション
Inlandwater06-013.pdf Inlandwater06-013.pdf (426.2 kB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2010-07-21
タイトル
タイトル CharOphytes as a hyperaccumulator of lleaVy metals: role of calcirlCation and applicability in restoration of polluted water bodies
言語
言語 eng
キーワード
主題Scheme Other
主題 Charophytes
キーワード
主題Scheme Other
主題 Heavy metals
キーワード
主題Scheme Other
主題 Carbonate-bound
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ departmental bulletin paper
著者 Gomes, Pattiyage I. A.

× Gomes, Pattiyage I. A.

WEKO 46667

Gomes, Pattiyage I. A.

Search repository
Asada, Takeshi

× Asada, Takeshi

WEKO 46668

Asada, Takeshi

Search repository
出版者
出版者 信州大学山地水環境教育研究センター
引用
内容記述タイプ Other
内容記述 信州大学山地水環境教育研究センター研究報告 6: 73-82(2010)
書誌情報 信州大学山地水環境教育研究センター研究報告

巻 6, p. 73-82, 発行日 2010-02-10
抄録
内容記述タイプ Abstract
内容記述 Uptake of heavy metals to produceanintemal concentration greaterthaninthe external environment appears widespread in aquatic organisms. Thus remediation of metaland heavy metal contaminated waters by aquatic plants has a prominent role in aquatic eco-systems. Here we discuss the capacity of a characean alga Nitella pseudoflabellata to accumulate heavy metals, in the context of calcite encrustation Preliminary Investigations based on varylng concentrations of Cr6+ and Ca showed a positive correlation between calcification of plants and shoot elongation. Similar trend was observed between Cr levelsand calcification of plants. Subsequentlymicrocosms were maintained for a period of 1 year for two heavy metal treatments; 012 mgL-1 cr6+and O・01 mg・Lll Cd withthe objective of assessmg the role of calcite encrustation on heavy metal accumulation, In bothcases, alkaline areas contained over 50% of total heavy metals, elucidating c?1cification to play a significant role. Speciation of sediment showed 35 % of total Cr, in the formof carbonate-bound, whereas carbonate-bound kaction of Cd was observed 43 % of total Cd. Thick marl sediment frequently observed in charophyte habitats suggests long termstorage of heavy metalsinless bioavailableforms could be possible Furthermore charophytes compare well to commonly used vascular plants in their role in remediation舟om hydroponic environments at dilute heavy metal concentrations. Thuscharophytes canbe a potential tool for naturalremediation of heavy metal contaminated water bodies.
資源タイプ(コンテンツの種類)
内容記述タイプ Other
内容記述 Article
ISSN
収録物識別子タイプ ISSN
収録物識別子 1348-7612
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA11887942
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