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A system for asbestos neutralization, that includes a neutralization unit having a module configured for sorting of asbestos waste, an asbestos waste grinder; 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, the solution is configured for 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.
A system for asbestos neutralization, that includes a neutralization unit having a module configured for sorting of asbestos waste, an asbestos waste grinder; 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, the solution is configured for 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.
Method and system for neutralizing asbestos
POGGI PAUL (author)
2022-12-27
Patent
Electronic Resource
English
IPC:
A62D
CHEMICAL MEANS FOR EXTINGUISHING FIRES
,
Chemische Mittel zum Löschen von Bränden
/
B09B
DISPOSAL OF SOLID WASTE
,
Beseitigung von festem Abfall
/
C01B
NON-METALLIC ELEMENTS
,
Nichtmetallische Elemente
/
C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
,
Verbindungen der Metalle Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium oder der Seltenen Erden
/
C04B
Kalk
,
LIME
/
C22B
PRODUCTION OR REFINING OF METALS
,
Gewinnen oder Feinen von Metallen
Method and stationary or movable device for neutralizing and recycling asbestos waste
| European Patent Office | 2021
METHOD AND STATIONARY OR MOVABLE DEVICE FOR NEUTRALIZING AND RECYCLING ASBESTOS WASTE
| European Patent Office | 2018