PROCEDE DE DEPOLLUTION D'ATMOSPHERES POLLUEES, PAR ACCRETION AUTOUR DE PARTICULES FROIDES

摘要

A method for cleaning polluted atmospheres containing pollutants. The pollutants are condensed around cold particles (10) held in suspension in an enclosure (1) by the pressure exerted on them by the polluted atmosphere. As the weight of the cold particles (10) increases as a result of the pollutants condensing on the particle surfaces, they fall under their own weight to the bottom of the enclosure and form a heap. The cold particles are preferably balls of ice. After removal from the enclosure (1), the balls of ice partially melt, whereby the pollutants may be recovered by decanting or phase separation.