method and device for environmentally sound disposal of hazardous waste.

摘要

The invention relates to a method of pollution-free disposal of environmentally hazardous residues, in particular sewage sludge, filter dust, fly ash, slags and the like, the dried residues being mixed with solid blast furnace slag or other waste materials and homogenised in a two-part melting furnace at temperatures between 1350 DEG C and 1600 DEG C to give a glassy mass, in which the pollutants are bound and fused, and continuously taken off over a weir. The invention also relates to an apparatus for carrying out the method, having a closed melting furnace with two melting tanks (1a, 1b) having a raw material inlet (18) located in an end face above the weir level and an outlet preferably located in the opposite end face, and having electric heating (2) in the two melting tanks (1a, 1b) and additional top-flame heating (9) in the melting tank (1b) located remote from the raw material inlet. IMAGE