TREATMENT FOR UPGRADING WASTE INCINERATION RESIDUES AND THE LIKE

摘要

This treatment of hydrometallurgical type of special waste containing heavy metals and the salts, the residue in particular, comprises firstly a step of wetting with water (or an aqueous liquid other), added in a quantity just necessary to carry out after mixing a pulp thick, that is allowed to take place at the "hot " to the formation of a stiff paste by natural rheological transformation of the pulp at the end of a thirty hours; the paste obtained is then subjected to operations of washing with water, preferably, by advantageously using the liquid / solid weight ratio of 50 / l at least for the assembly of the washing, preferably about 100 / l, and the solid fraction is collected, washed when it meets the requirements required not - environmental unfriendliness allowing it to be used industrially, as clinker of group v for use in the techniques of road, in particular.