Method for removing mercury and mercuric compounds from dental effluents
AssigneeADA Technologies, Inc.
InventorsJason Albiston, Craig S. Turchi, Allan Carlson
Life of this patent
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Abstract
The present invention is directed to processes for removing a contaminant from dental effluents and includes transporting a three-phase effluent through a suction line into a particle collection vessel, introducing a suction line cleaning solution which includes a reagent into the suction line, and introducing the three phase effluent and the line cleaning solution into the collection vessel, wherein the effluent separates into solid, liquid, and gas phases in the collection vessel and the reagent includes a flocculant and/or a precipitant, and removing the gaseous and liquid phases from the collection vessel. The contaminant includes mercury, lead, and arsenic.
Claims23
A process for removing a contaminant from a three-phase effluent, comprising:
- transporting a three-phase effluent through a suction line into a collection vessel, wherein the effluent comprises one or more contaminants;
- introducing a suction line cleaning solution into the suction line, wherein the suction line cleaning solution comprises a reagent;
- introducing the three-phase effluent and line cleaning solution into the collection vessel, wherein the three-phase effluent separates into a solid phase, a liquid phase, and a gas phase in the collection vessel and the reagent is at least one of a flocculent and a precipitant to improve the collection efficiency for one or more contaminants;
- removing the gas phase from the collection vessel;
- and
- removing the liquid phase from the collection vessel.
A process for removing a contaminant from a three-phase effluent, comprising:
- transporting a three-phase effluent through a suction line;
- into a collection vessel;
- introducing a reagent into the suction line;
- introducing the three-phase effluent and reagent into the collection vessel, wherein the three-phase effluent separates into a solid phase, a liquid phase, and a gas phase in the collection vessel and the reagent reacts with mercury-containing compounds in the three-phase effluent to form a mercury-containing precipitate;
- removing the gas phase from the collection vessel;
- and
- removing the liquid phase from the collection vessel.
Dependencies are inferred from the claim text.