Title:
ARSENIC-CONTAINING SOIL CLEANING METHOD
Document Type and Number:
Japanese Patent JP2017012956
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an arsenic-containing soil cleaning method having the reduced waste amount to be generated.SOLUTION: Provided is an arsenic-containing soil cleaning method at least having the first to third steps in this order: the first step where arsenic-containing soil and a cationic cleaning agent selected from a chitosan series and a polyacrylic acid ester series are mixed and stirred in water; the second step where a solid phase and a liquid phase including arsenic are subjected to solid-liquid separation; and the third step where the arsenic in the liquid phase is treated.SELECTED DRAWING: Figure 1
Inventors:
KAWAMATA MUTSUMI
AKATSUKA MAIKO
TADANO YUSUKE
AKATSUKA MAIKO
TADANO YUSUKE
Application Number:
JP2015129366A
Publication Date:
January 19, 2017
Filing Date:
June 29, 2015
Export Citation:
Assignee:
TAISEI CORP
International Classes:
B09C1/02; B01D21/01; B09C1/08; C02F1/28; C02F1/62
Attorney, Agent or Firm:
Zentaro Hasebe
Yasuyuki Yamada
Nakamura Norihiro
Yasuyuki Yamada
Nakamura Norihiro