METHOD OF TREATING INCINERATION ASH, METHOD OF SPRINKLING WATER TO INCINERATION ASH LAYER, AND SPRINKLER FOR INCINERATION ASH

摘要

PROBLEM TO BE SOLVED: To wash incineration ash in pretreatment with a small water amount in an early stage. SOLUTION: At the time of reclaiming the incineration ash in a final disposal site, the pretreatment using water sprinkling treatment and ventilation treatment together is executed to the incineration ash before reclamation. By using the ventilation treatment together, the pretreatment of lowering the TOC of leachate to about 100 mg/l in about 40 days is performed. Compared to the case of just washing the incineration ash with washing water before the reclamation, the pretreatment is performed with a smaller water amount. After the pretreatment, even when a water sprinkling amount is suppressed to the amount of 2 mm/day for instance, the quality of the leachate about the same as the one when it is 4 mm/day is maintained. COPYRIGHT: (C)2007,JPO&INPIT