Heavy metal elution prevention treatment method of incineration fly ash and bottom ash and / or

摘要

PROBLEM TO BE SOLVED: To surely prevent heavy metals from being eluted from fused slag.;SOLUTION: An agent for preventing elution of the heavy metals from the fused slag contains one or more kinds selected from the group consisting of polyvalent metal salts of polymerized phosphoric acid, polymerized phosphoric salt, sodium dihydrogenphosphate and phosphoric acid.;COPYRIGHT: (C)2001,JPO