| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a washing method for incineration ash, capable of efficiently removing chlorine contained in incineration ash, and making effective use of coarse particles in the incineration ash as cement material. <P>SOLUTION: The washing method for removing chlorine from incineration ash formed by coagulation of the coarse particles and fine particles includes: a process for forming slurry, in which magnetic foreign matter is removed from the incineration ash by magnetic sorting in advance, water in amount of 1-10 times weight of the ash is added to the foreign matter-removed incineration ash, and the obtained mixture is mixed by stirring so as to grind the incineration ash to form slurry; and a separating process in which the slurry is separated into coarse particle-containing slurry and fine particle-containing slurry. <P>COPYRIGHT: (C)2009,JPO&INPIT |
