Destruction of inorganic hazardous wastes
AssigneeDetox International Corporation
InventorClifford G. Shultz
Life of this patent
Estimating the term…
Abstract
Hazardous waste containing inorganic compounds which contain heavy metals or particular hazardous anionic groups or which are hazardous halides or non-metal oxides or sulfides is contacted with molten aluminum to provide reduction to lower less hazardous oxidation state.
Claims19
A process for treating non-radioactive hazardous waste comprising residues left in chemical waste dumps or aggregations of hazardous materials collected at chemical waste storage sites, said process comprising the step of contacting said waste with molten aluminum to provide reduction to lower less hazardous oxidation state.
Process as recited in claim 7, wherein said member is oxidizing anionic group containing non-volatile heavy metal, said oxidizing anionic group being selected from the group consisting of manganate, permanganate, vanadate, chromate and dichromate.
A process for treating a non-radioactive waste selected from the group consisting of (a) chromate tanning waste treatment sludges, (b) chromate plating waste treatment sludges, (c) plating plant waste water treatment sludges, and (d) plating bath sludges, said process comprising the step of contacting said waste with molten aluminum to provide reduction to lower less hazardous oxidation state.
Dependencies are inferred from the claim text.