Title:
土壌固化組成物を用いる土壌の固化方法
Document Type and Number:
Japanese Patent JP6884335
Kind Code:
B2
Abstract:
The purpose of the present invention is to provide a soil-solidifying composition having exceptional soil-solidifying properties, excellent safety and biodegradability, no elution even upon contact with rain or other water, and no risk of salt damage. The present invention provides: a soil-solidifying composition containing component (A): carboxymethyl cellulose or a salt thereof, component (B): a cationic polymer, and component (C): at least one salt selected from the group consisting of sulfates, phosphates, and nitrates; and a method for solidifying soil by spraying this composition on the soil. Component (A) preferably has a DS of 0.4-1.1 and a 1% viscosity of 300-2,000 mPa⋅s; component (B) preferably has a degree of cationization of 3.8-4.2 meq/g and a molecular weight of 3,000,000-7,500,000, and preferably is a polyacrylic acid ester compound or polymethacrylic acid ester compound; and component (C) preferably includes an ammonium salt such as ammonium sulfate, ammonium nitrate, or ammonium phosphate.
Inventors:
Hiroshi Fukui
Machida Makoto
Hirochika Naganawa
Nobuyuki Yanase
Satoshi Nagano
Hisakichi Mitamura
Machida Makoto
Hirochika Naganawa
Nobuyuki Yanase
Satoshi Nagano
Hisakichi Mitamura
Application Number:
JP2016064819A
Publication Date:
June 09, 2021
Filing Date:
March 29, 2016
Export Citation:
Assignee:
NIPPON PAPER INDUSTRIES CO.,LTD.
Japan Atomic Energy Agency
Japan Atomic Energy Agency
International Classes:
C09K17/50; E02D3/12; E02D17/20
Domestic Patent References:
| JP2008050522A | ||||
| JP2013185941A |
Foreign References:
| US2868758 |
Other References:
WALLACE,A. et al.,Mechanisms involved in soil conditioning by polymers,Soil Science,Vol.141, No.5,p.381-386 (1986).
長縄弘親ほか,ポリイオンコンプレックスを固定化剤として用いる土壌表層の放射性セシウムの除去,日本原子力学会和文論文誌,Vol.10, No.4,227-234 (2011).
長縄弘親ほか,ポリイオンコンプレックスを固定化剤として用いる土壌表層の放射性セシウムの除去,日本原子力学会和文論文誌,Vol.10, No.4,227-234 (2011).
Attorney, Agent or Firm:
Sakai International Patent Office