INFLUENCE OF ADSORPTION AND REDUCTION BY SURROUNDING SOIL ON HEXAVALENT CHROMIUM LEACHED FROM CEMENT TREATED SOIL

• TSUNEOKA Nobuyuki

  社団法人 土木学会 国土技術政策総合研究所 道路研究部

• MORI Hirotoshi

  社団法人 土木学会 独立行政法人土木研究所 材料地盤研究グループ

• SAKAMOTO Hiroyuki

  社団法人 土木学会 (株) フジタ 土木技術統括部技術企画部

• ITONAGA Shingo

  大成基礎設計 (株) 環境エンジニアリング事業部

• MORIYA Masahiko

  社団法人 土木学会 太平洋セメント (株) 中央研究所 第1研究部

Bibliographic Information

Other Title

• セメント改良土から溶出する六価クロムに土壌の吸着・還元作用が及ぼす影響
• セメント カイリョウド カラ ヨウシュツ スル 6カ クロム ニ ドジョウ ノ キュウチャク カンゲン サヨウ ガ オヨボス エイキョウ

Abstract

Some cement treated soils can leach hexavalent chromium, Cr (VI). Leaching tests of samples of previously executed cement treated soils and their surrounding soils have been performed. The results indicate that there is no Cr (VI) detected, even in the soil surrounding cement treated soil in which Cr (VI) is detected. This shows that Cr (VI) is adsorbed or reduced in the surrounding soil. A culum experiment and a batch experiment were done to confirm these effects. The experiments demonstrate that the capacity and strength of adsorption varies with the soil, that the strength of adsorption grows as time passes, and that the emergence of the redox action increases the quantity of Cr (VI) that is captured.

Journal

• Doboku Gakkai Ronbunshu

  Doboku Gakkai Ronbunshu 2004 (764), 133-145, 2004-06-21

  Japan Society of Civil Engineers

Keywords

• hexavalent chromium
• cement treated soil
• adsorption
• reduction
• leaching

Details

• CRID: 1390282680579566336
• NII Article ID: 10012757846
• NII Book ID: AN10014020
• DOI: 10.2208/jscej.2004.764_133
• ISSN: 18827187
• ISSN: 02897806
• ISSN: http://id.crossref.org/issn/02897806
• NDL BIB ID: 7021401
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7021401
• Web Site: https://www.jstage.jst.go.jp/article/jscej1984/2004/764/2004_764_133/_pdf
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed