Method for transforming surplus mud from purification processes for civil and/or industrial recycled water into inert substances and plant for the realisation of this method.

摘要

Method for transforming surplus mud from purification processes for civil and/or industrial recyled water into inert substances, which entails the partial drying of the said mud under vacuum, the mixture of the partially dried mud with clay, silica-based inerts and low-molding materials e.g. sodium or calcium carbonate bringing the mixture of mud and clay into granular form, pre-heating the said granules, calcinating the same in a reducting atmosphere by means of a rotating kiln, and completely melting the granules over 1500 DEG C by means of a melting furnace of basin type.