MELT SOLIDIFICATION METHOD OF WASTE INCINERATION ASH

MELT SOLIDIFICATION METHOD OF WASTE INCINERATION ASH

PURPOSE:To provide a melt solidification method of waste incineration ashes capable of yielding safe solidified glass efficiently confining heavy metals in the waste incineration ashes. CONSTITUTION:An SiO2 based adsorbent of 20 to 40% of the waste incineration ashes and water are added to the waste...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: TOMIYAMA YUTAKA
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
COMPOUNDS THEREOF
DISPOSAL OF SOLID WASTE
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
RECLAMATION OF CONTAMINED SOIL SOIL
TRANSPORTING
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:PURPOSE:To provide a melt solidification method of waste incineration ashes capable of yielding safe solidified glass efficiently confining heavy metals in the waste incineration ashes. CONSTITUTION:An SiO2 based adsorbent of 20 to 40% of the waste incineration ashes and water are added to the waste incineration ashes and the waste incineration ashes are subjected to a desalting treatment and dehydration. At this time, Cl migrates to the liquid side but the migration of the heavy metals to the liquid side is prevented by the SiO2 based adsorbent. SiO2 and a m. p. lowering agent are mixed therewith to adjust the mixture to SiO2/(waste incineration ashes-l-SiO2 adsorbent+SiO2)=40 to 60% and water content