| 摘要 |
PROBLEM TO BE SOLVED: To treat a waste material containing an alkali vitreous body or a crystal comprising the alkali vitreous body containing a metal material. SOLUTION: The waste material, which contains alkali vitreous body or the crystal comprising the alkali vitreous body containing the metal material, and a solid material are stirred and mixed to be ground and the ground mixture is mixed with a treatment agent based on a sulfide aqueous solution obtained by the ionic bond of either one of a Group I or II metal body and another alkali metal body or a mixture of them with sulfur or a treatment agent based on an aqueous solution of a polysulfide of either one of the Group I or II metal body and another alkali metal body or the mixture of them. Especially, the solid material is crushed to be classified in size and the ground solid material with a predetermined size or above is mixed with the waste material under stirring before the ground solid material with the predetermined size or below is added. Further, as the solid material, slag is used. COPYRIGHT: (C)2008,JPO&INPIT |
