METHOD AND DEVICE FOR TREATING WASTE MIXED INCINERATED ASH WITH SLUDGE BY THERMAL-PLASMA

摘要

To provide a method for treating a mixture of incinerated ash and sludge, which uses thermal plasma for treating the incinerated ash and sludge into stable slag having leachability-resistance to elution of heavy metals. The method comprises the steps of: (a) injecting a mixture prepared by mixing incinerated ash with sludge in a weight ratio of 3:1-1:3 into a reactor of a thermal-plasma jet device; (b) heating and melting the mixture to generate slag; and (c) rapidly-cooling the molten-stage slag using cooling water to generate amorphous slag.