Method and system for neutralizing asbestos

Abstract

The invention relates to a system for asbestos neutralization, that comprises a neutralization unit comprising, in an atmospheric containment: a module for sorting of asbestos waste, an asbestos waste grinder, which reduces the size of the asbestos waste to a dimension ranging from one-tenth of a millimeter to one millimeter, a concentrated sulfuric acid tank, a vat containing a hot diluted acid solution, for which temperature is between 70° C. and 100° C., in which grinded asbestos waste containing asbestos is dipped, said solution neutralizing asbestos contained in the grinded asbestos waste, a filtration unit to separate, at the end of the neutralization reaction, a solid inert waste from a liquid phase of the diluted acid solution, a regeneration unit for the diluted acid solution, which adjusts the hydrogen potential of the extracted liquid phase by adding concentrated sulfuric acid from the tank, and means for transferring the regenerated solution into the vat.

Dependencies are inferred from the claim text.