PROCESSO PARA A REMOÇÃO DE METAIS PESADOS GASOSOS, LÍQUIDOS E SÓLIDOS OU SEUS COMPOSTOS, FUMOS DE PLANTA DE COMBUSTÃO, E, FASE AQUOSA DO RESÍDUO

摘要

A process for the removal of heavy metals from flue gas deriving from combustion processes comprising the following steps: a) optional removal by filtration of solid particles or of particulate of heavy metals or their compounds, having an average diameter higher than 10 micron; b) flue gas washing performed with an aqueous phase and transfer of the heavy metals or their compounds to the aqueous phase; c) flue gas cooling and partial condensation of the steam contained in the flue gas and separation of a condensed phase; d) discharge of the flue gases substantially free from heavy metals or their compounds into the environment; f) discharge of the aqueous phase substantially free from heavy metals or their compounds into the environment.