CHLORINE HYSTORY IN THE TREAMENT OF FLYING ASHES FROM DOMESTIC WASTES BY A TRANSFERRED ARC

摘要

A plasma transferred arc reactor was designed to follow on-line by ICP the evaporation of Zn and Cl of zinc chlorides impregnated in a zeolite matrix (fly ash model). The zeolite granules were injected in a graphite crucible on which the arc in argon atmosphere was transferred. Measurement has shown that zinc and chlorine are evaporated and that chlorine and sodium are detected in the solution of the cleaning tower. The thermodynamic computation of fly ash model has allowed to identify that chlorine recombine it with Na after the ejection of the plasma, allowing its neutralization.