INSOLUBILIZING AGENT FOR HARMFUL SUBSTANCE

PROBLEM TO BE SOLVED: To provide an insolubilizing agent for harmful substances capable of surely detoxifying harmful substances such as heavy metals in soil, incineration ash, etc., at a low cost, free from the risk of redissolution of harmful substances by acid rain, and enabling safe recycling of...

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Bibliographic Details
Main Authors MATSUKATA MASAHIKO, YAMAZAKI JUNJI, SHODA TAKENORI
Format Patent
LanguageEnglish
Published 22.11.2007
Subjects
ADHESIVES
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
DISPOSAL OF SOLID WASTE
DYES
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
POLISHES
RECLAMATION OF CONTAMINATED SOIL
RECLAMATION OF CONTAMINED SOIL SOIL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:PROBLEM TO BE SOLVED: To provide an insolubilizing agent for harmful substances capable of surely detoxifying harmful substances such as heavy metals in soil, incineration ash, etc., at a low cost, free from the risk of redissolution of harmful substances by acid rain, and enabling safe recycling of the detoxified soil and incineration ash. SOLUTION: The insolubilizing agent for harmful substances contains magnesium oxide and an alkali metal silicate. Preferably, the agent contains 2-100 pts.mass of an alkali metal silicate based on 100 pts.mass of magnesium oxide, the magnesium oxide is calcined magnesia, and the alkali metal silicate is one or more substances selected from water glass, potassium water glass, lithium water glass, powdery sodium silicate and powdery potassium silicate. COPYRIGHT: (C)2008,JPO&INPIT
Bibliography:Application Number: JP20070106548