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US 4,544,488 AGranted
Air stripping/adsorption process for removing organics from water
AssigneeCalgon Corporation
InventorRobert P. O'Brien
Life of this patent
Estimating the term…
Abstract
The instant invention is directed to a process for removing volatile and nonvolatile organic chemicals from water comprising: (1) passing said water through an induced draft air stripper; and (2) passing the effluent of said induced draft air stripper through a carbon adsorption bed.
Claims11
A process for removing volatile and non-volatile organic compounds from water comprising:
- (1) injecting said water into an induced draft air stripper through spray nozzles, thereby inducing air into said air stripper;
- (2) allowing mixing of said water and air to occur in said air stripper, thereby causing stripping of volatile compounds from said water by said air, and then allowing the air containing said volatile compounds to exit said air stripper to atmosphere;
- and (3) passing the effluent water from said air stripper through a carbon adsorption bed for removal of non-volatile organic compounds.
A process for removing volatile and non-volatile organic chemicals from water comprising:
- (1) injecting said water into an induced draft air stripper through spray nozzles, thereby inducing air into said air stripper;
- (2) allowing mixing of said water and air to occur in said air stripper, thereby causing stripping of volatile compounds from said water by said air, and then allowing the air containing said volatile compounds to exit said air stripper to atmosphere;
- and (3) passing the effluent water from said air stripper through a gravity flow activated carbon adsorber for removal of non-volatile organic compounds, wherein said adsorber contains a plurality of compartments, each of which is backwashable, and wherein said adsorber receives water directly from said induced draft air stripper without requiring intermediate pumping.
Dependencies are inferred from the claim text.