Abstract: A process for ultrapurifying fumes or gases with total recovery of the resultant pollutants, characterised by: subjecting a stream of pollutant-containing fumes or gases to a sprinkle wash by unpolluted water within a snow producer (20) and subjecting the water, during its passage, to rapid cooling to a temperature sufficient to transform it into snow flakes, which along their path collect the pollutants present in the stream of fumes or gases, discharging from said snow producer (20) said snow flakes which have reached the base thereof, and feeding to a gasifier the resultant polluted water deriving from said snow flakes.

Abstract: The process and apparatus for transforming combustible pollutants and waste materials into non-polluting, clean and useful energy, by completely removing the pollutants from raw materials while avoiding the formation of potential pollutants, involve the use of oxygen or a gas mixture containing oxygen, such as air, and steam.