AGENT FOR REDUCING HEAVY METAL ELUTION

AGENT FOR REDUCING HEAVY METAL ELUTION

PROBLEM TO BE SOLVED: To provide an agent for reducing heavy metal elution capable of reducing the elution of heavy metals such as Cr6+ even in waste containing various metals including Cr6+. SOLUTION: The agent for reducing heavy metal elution agent is prepared under a reduction atmosphere at >=...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: TAKADA MINORI, MATSUURA SHIGERU, HOSHINO SEIICHI
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
DISPOSAL OF SOLID WASTE
METALLURGY
PERFORMING OPERATIONS
RECLAMATION OF CONTAMINATED SOIL
RECLAMATION OF CONTAMINED SOIL SOIL
TRANSPORTING
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide an agent for reducing heavy metal elution capable of reducing the elution of heavy metals such as Cr6+ even in waste containing various metals including Cr6+. SOLUTION: The agent for reducing heavy metal elution agent is prepared under a reduction atmosphere at >=1000 deg.C and consists essentially of >=2 components among CaO, Al2O3 and SiO2 chemical components and containing a reducing material. The heavy metal elution reducing agent is preferably contains 0-70 mass% CaO, 0-80 mass% Al2O3 and 0-99 mass% SiO2 expressed in terms of CaO, Al2O3 and SiO2.