Process for rendering an ash inert, artificial pozzolana obtained by means of the said process

摘要

Process for rendering inert an ash originating from the incineration of municipal waste, according to which the ash is subjected successively to treatment ( 19 ) with a water-soluble phosphate ( 20 ) in the presence of water, under conditions adjusted to crystallize hydroxyapatite and/or whitlockite, and to calcination ( 22 ). Artificial pozzolana, obtained by subjecting an ash originating from the incineration of municipal waste to such an inerting process.