動電学的手法による難透水性土壌からの亜鉛の除去特性

• 林 一彦

  名古屋大学大学院工学研究科化学・生物工学専攻

• 片桐 誠之

  名古屋大学大学院工学研究科化学・生物工学専攻

• 入谷 英司

  名古屋大学大学院工学研究科化学・生物工学専攻

書誌事項

タイトル別名

• Removal Properties of Zn from Soil with Extremely Low Hydraulic Permeability by Electrokinetic Method
• ロカセイ ニ チャクモク シタ ギョウシュウ ケッショウ ショウセキ ジョウケン ノ ケントウ
• ドウデンガクテキ シュホウ ニ ヨル ナン トウスイセイ ドジョウ カラ ノ アエン ノ ジョキョ トクセイ

抄録

An electrokinetic method with ion exchange reactions was investigated for the remediation of heavy metal contaminated soils which have an extremely low hydraulic permeability. Various consolidated bentonite cakes contaminated with Zn, having different permeation properties, were prepared by a mechanical expression method, and the removal of Zn²⁺ from the cake was carried out by the electrokinetic method with the addition of Na⁺. Under the condition of a constant current density, an increase in Na⁺ concentration led to a higher rejection ratio of Zn²⁺. However, the permeation rate of the liquid through the cake was decreased with Na⁺ concentration. Therefore, it is important to select an appropriate concentration of Na⁺ for the effective removal of Zn²⁺ from the contaminated soil. Also, the rejection performance was little influenced by the permeability of the cake. Consequently, the electrokinetic method developed in this work was found to be useful for the remediation of contaminated soils with extremely low hydraulic permeability.

収録刊行物

• 粉体工学会誌

  粉体工学会誌 42 (12), 838-844, 2005

  一般社団法人 粉体工学会

キーワード

• Electrokinetic remediation
• Heavy metal
• Contaminated soil
• Ion exchange reaction
• Hydraulic permeability

詳細情報

• CRID: 1390282679488858240
• NII論文ID: 10017095547
• NII論文ID: 130003777894
• NII書誌ID: AN00222757
• DOI: 10.4164/sptj.42.838
• ISSN: 18837239
• ISSN: 03866157
• NDL書誌ID: 8583614
• NDL書誌ID: 7766334
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8583614
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7766334
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可