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US 7,008,473 B2Granted
System for photocatalytic treatment of contaminated media
AssigneePurifics Environmental Technologies, Inc.
InventorsBrian E. Butters, Anthony Leonard Powell
Life of this patent
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Abstract
A system for treating contaminated media is provided. In the process, contaminants are removed from the media using a photocatalytic process operating in an aqueous phase.
Claims30
A system removing contaminants from a contaminated air stream, the system comprising:
- a decontamination tank gas scrubber tower;
- solvent supply lines for providing solvent;
- a nozzle connected to the solvent supply lines and positioned at the top of the gas scrubber tower, the nozzle operable to downwardly disperse the solvent into the tower;
- a gaseous stream passage for passing a contaminated gaseous stream through the tower, whereby the contaminated gaseous stream is directed upwardly through the downwardly dispersed solvent, whereby contaminants are transferred from a gaseous phase to an aqueous phase and thereupon travel downward to the bottom of the gas scrubber tower;
- a slurry positioned to receive the aqueous phase contaminants;
- and
- a photocatalytic decontamination system operable to remove the contaminants from the slurry.
4 more elements
A system removing contaminants from a contaminated gaseous stream, the system comprising:
- a decontamination tank;
- solvent supply lines for providing solvent to the decontamination tank;
- a nozzle connected to the solvent supply lines and positioned at the top of the decontamination tank, the nozzle operable to downwardly disperse the solvent into the tank;
- a gaseous stream passage for passing a contaminated gaseous stream through the tank, whereby the contaminated gaseous stream is directed upwardly through the downwardly dispersed solvent, whereby contaminants are transferred from a gaseous phase to an aqueous phase and thereupon travel downward to the bottom of the tank;
- a slurry positioned in the tank to receive the aqueous phase contaminants;
- and
- a decontamination system operable to remove the aqueous phase contaminants from the slurry.
4 more elements
Dependencies are inferred from the claim text.