公开(公告)号：US07399268B2

公开(公告)日：2008-07-15

申请号：US11291822

申请日：2005-12-02

申请人： Toru Ida ,  Hiroshi Murakami ,  Yutaka Inada

发明人： Toru Ida ,  Hiroshi Murakami ,  Yutaka Inada

IPC分类号： B09C1/06

CPC分类号： B09C1/06 ,  B09C1/08

摘要： Disclosed herein is a method for treatment of arsenic-contaminated soil, said method being capable of insolubilizing arsenic compounds (in organic form or tri- or pentavalent inorganic form), thereby reducing their leaching level below the environmental standard value for soil. The method consists of heating arsenic-contaminated soil at 200 to 700° C. and mixing the heated soil with a calcium compound and water. The method also consists of mixing arsenic-contaminated soil with a calcium compound, heating the mixed soil at 200 to 700° C., and mixing the heated soil with water.

摘要翻译： 本文公开了一种处理砷污染土壤的方法，所述方法能够使砷化合物（有机形式或三价或五价无机形式）不溶解，从而将其浸出水平降低到低于土壤的环境标准值。 该方法包括在200-700℃下加热受砷污染的土壤，并将加热的土壤与钙化合物和水混合。 该方法还包括将砷污染土壤与钙化合物混合，在200至700℃加热混合土壤，并将加热的土壤与水混合。

公开(公告)号：US20080139867A1

公开(公告)日：2008-06-12

申请号：US11291822

申请日：2005-12-02

申请人： Toru Ida ,  Hiroshi Murakami ,  Yutaka Inada

发明人： Toru Ida ,  Hiroshi Murakami ,  Yutaka Inada

IPC分类号： B09B3/00

CPC分类号： B09C1/06 ,  B09C1/08

摘要： Disclosed herein is a method for treatment of arsenic-contaminated soil, said method being capable of insolubilizing arsenic compounds (in organic form or tri- or pentavalent inorganic form), thereby reducing their leaching level below the environmental standard value for soil. The method consists of heating arsenic-contaminated soil at 200 to 700° C. and mixing the heated soil with a calcium compound and water. The method also consists of mixing arsenic-contaminated soil with a calcium compound, heating the mixed soil at 200 to 700° C., and mixing the heated soil with water.

摘要翻译： 本文公开了一种处理砷污染土壤的方法，所述方法能够使砷化合物（有机形式或三价或五价无机形式）不溶解，从而将其浸出水平降低到低于土壤的环境标准值。 该方法包括在200-700℃下加热受砷污染的土壤，并将加热的土壤与钙化合物和水混合。 该方法还包括将砷污染土壤与钙化合物混合，在200至700℃加热混合土壤，并将加热的土壤与水混合。