US5043079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wastewater treatment process with an ozone contactor
Assignee: Solarchem Enterprises Inc
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Filing: 1991-01-24
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Granted: 1991-08-27
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Expires: 2011-01-24
Abstract
Abstract During the oxidation or photooxidation of contaminants in wastewater, a gaseous oxidizing agent is introduced into a wastewater steam. The mixed stream is passed through a liquid ring compressor prior to its entry into an ultraviolet light reactor. In an alternate embodiment, the oxidizing agent and the wastewater are each introduced into the liquid ring compressor.
Inventors
- 👤 Ronald C. Hallett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:24
CPC Classifications
F; F04; F04C; F04C19/00; F04C19/001; C; C02; C02F; C02F1/00; C02F1/30; C02F1/32; C02F1/72; C02F1/78
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
153 words
In a process for the oxidation or photooxidation of oxidizable or photooxidizable contaminants in wastewater in which the contaminants in the wastewater are exposed to a gaseous oxidizing agent by combining a mixture of the wastewater and the oxidizing agent and passing the mixture through an ultraviolet light reactor, the improvement wherein said wastewater is contacted with said gaseous oxidizing agent by first providing a step for introducing said oxidizing agent into a combined mixture of said wastewater to form said combined mixture, passing said combined mixture through a liquid ring compressor and thereafter passing said stream to a working tank from which said combined mixture is further recycled to said introducing step until the oxidizable contaminants of the wastewater stream are substantially destroyed, wherein said ring compressor provides intimate contact of said wastewater with said oxidizing agent while increasing the throughput of said wastewater through said process without utilizing an absorption column.
Claim 2
Dependent Claim
153 words
In a process for the oxidation or photooxidation of oxidizable or photooxidizable contaminants in wastewater in which the contaminants in the wastewater are exposed to a gaseous oxidizing agent by combining a mixture of the wastewater and the oxidizing agent and passing the mixture through an ultraviolet light reactor, the improvement wherein said wastewater is contacted with said gaseous oxidizing agent by first providing a step for introducing said oxidizing agent into a combined mixture of said wastewater to form said combined mixture, passing said combined mixture through a liquid ring compressor and thereafter passing said stream to a working tank from which said combined mixture is further recycled to said introducing step until the oxidizable contaminants of the wastewater stream are substantially destroyed, wherein said ring compressor provides intimate contact of said wastewater with said oxidizing agent while increasing the throughput of said wastewater through said process without utilizing an absorption column.
Claim 3
Dependent Claim
119 words
A process for the oxidation or photooxidation of wastewater containing oxidizable or photooxidizable contaminants comprising a step for introducing a gaseous oxidizing agent into the wastewater to form a combined mixture, passing the combined mixture first through a liquid ring compressor then through ultraviolet light reactor so as to permit said oxidizing agent to oxidize said contaminants and thereafter passing the combined mixture to a working tank from which said combined mixture is further recycled to said introducing step until the oxidizable contaminants of the wastewater stream are substantially destroyed, wherein said ring compressor provides intimate contact of said wastewater with said oxidizing agent while increasing the throughput of said wastewater through said process without utilizing an absorption column.
Claim 4
Dependent Claim
119 words
A process for the oxidation or photooxidation of wastewater containing oxidizable or photooxidizable contaminants comprising a step for introducing a gaseous oxidizing agent into the wastewater to form a combined mixture, passing the combined mixture first through a liquid ring compressor then through ultraviolet light reactor so as to permit said oxidizing agent to oxidize said contaminants and thereafter passing the combined mixture to a working tank from which said combined mixture is further recycled to said introducing step until the oxidizable contaminants of the wastewater stream are substantially destroyed, wherein said ring compressor provides intimate contact of said wastewater with said oxidizing agent while increasing the throughput of said wastewater through said process without utilizing an absorption column.
Claim 5
Dependent Claim
144 words
In a process for the oxidation or photooxidation of oxidizable or photooxidizable contaminants in wastewater in which the contaminants in the wastewater are exposed to a gaseous oxidizing agent by combining a stream of the wastewater and a stream of the oxidizing agent and passing the combined stream through an ultraviolet light reactor, the improvement wherein said wastewater is contacted with said gaseous oxidizing agent by providing a step in which each are introduced into a liquid ring compressor to form a combined stream which is thereafter passed to a working tank from which said combined stream is further recycled to said introducing step until the oxidizable contaminants of the wastewater stream are substantially destroyed, wherein said ring compressor provides intimate contact of said wastewater with said oxidizing agent while increasing the throughput of said wastewater through said process without utilizing an absorption column.
Claim 6
Dependent Claim
144 words
In a process for the oxidation or photooxidation of oxidizable or photooxidizable contaminants in wastewater in which the contaminants in the wastewater are exposed to a gaseous oxidizing agent by combining a stream of the wastewater and a stream of the oxidizing agent and passing the combined stream through an ultraviolet light reactor, the improvement wherein said wastewater is contacted with said gaseous oxidizing agent by providing a step in which each are introduced into a liquid ring compressor to form a combined stream which is thereafter passed to a working tank from which said combined stream is further recycled to said introducing step until the oxidizable contaminants of the wastewater stream are substantially destroyed, wherein said ring compressor provides intimate contact of said wastewater with said oxidizing agent while increasing the throughput of said wastewater through said process without utilizing an absorption column.
Claim 7
Dependent Claim
122 words
A process for the oxidation or photooxidation of wastewater containing oxidizable or photooxidizable contaminants comprising a step for introducing a gaseous oxidizing agent stream and a wastewater stream into a liquid ring compressor to form a combined stream and then passing the combined stream through an ultraviolet light reactor so as to permit said oxidizing agent to oxidize said contaminants and thereafter passing said combined steam to a working tank from which said combined stream is further recycled to said introducing step until the oxidizable contaminants of the wastewater stream are substantially destroyed, wherein said ring compressor provides intimate contact of said wastewater with said oxidizing agent while increasing the throughput of said wastewater through said process without utilizing an absorption column.
Claim 8
Dependent Claim
122 words
A process for the oxidation or photooxidation of wastewater containing oxidizable or photooxidizable contaminants comprising a step for introducing a gaseous oxidizing agent stream and a wastewater stream into a liquid ring compressor to form a combined stream and then passing the combined stream through an ultraviolet light reactor so as to permit said oxidizing agent to oxidize said contaminants and thereafter passing said combined steam to a working tank from which said combined stream is further recycled to said introducing step until the oxidizable contaminants of the wastewater stream are substantially destroyed, wherein said ring compressor provides intimate contact of said wastewater with said oxidizing agent while increasing the throughput of said wastewater through said process without utilizing an absorption column.
Claim 9
Dependent Claim
20 words
A process as claimed in any one of claims 1, 2 or 3 wherein said gaseous oxidizing agent comprises ozone.
Claim 10
Dependent Claim
30 words
A process as claimed in any one of claims 1, 2 or 3 wherein said gaseous oxidizing agent comprises from about 1 to about 3 wt. % ozone in air.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-08-26 | 1995-02-25 | 1995-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-26 | 1999-02-25 | 1999-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-26 | 2003-02-25 | 2003-08-27 | $7700.00 | Window Closed / Lapsed |