重金属類汚染土壌のセメントによる固化・不溶化処理について(<小特集>汚染地盤の修復)

概要

論文の詳細を見る
The authors have developed a solidification/stabilization (S/S) technique for soil mainly contaminated by heavy metals. The S/S treatment process involves the mixing of contaminated soil with cement to reduce the solubility or mobility of the contaminant physically and chemically, the formation of stable solids, and the encapsulation of the treated soil inside a subsurface vertical barrier such as cement slurry wall. In this paper, the leaching behaviour of several contaminated soils treated by the S/S technique using cement was investigated. The results showed that the leachate concentration of arsenic and selenium after treatment by cement became equal to or lower than the designated value in the Japanese environmental quality standard. Moreover, the results of quality control of the S/S treatment for arsenic-contaminated soil were reported in an actual example of its application to the in-situ.
社団法人地盤工学会の論文
2002-10-01