US5004484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air stripping of liquids using high intensity turbulent mixer
Assignee: HEP MANAGEMENT Inc
•
Filing: 1989-06-12
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Granted: 1991-04-02
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Expires: 2009-06-12
Abstract
Abstract A system and method of removing dissolved gases and volatile organic chemicals from a water supply is provided. Water is supplied under pressure to a contacting chamber in a manner wherein it causes air to be aspirated into the chamber for turbulent contacting with the water. The air and water are directed through the contacting chamber in a common axial direction. Either the water or air may be heated prior to introduction to the contacting chamber to enhance the effectiveness of the dissolved gases and volatile organic chemicals removal.
Inventors
- 👤 Thomas E. Stirling
- 👤 John R. Ackerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:31
CPC Classifications
B; B01; B01D; B01D19/00; B01D19/0005; B01F; B01F25/00; B01F25/30; B01F25/31; B01F25/314; B01F25/3142; B01F25/31425; B01D19/0042; B01D19/0052; B01D19/0057; Y; Y10; Y10S; Y10S261/00; Y10S261/75
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
117 words
A system for removing dissolved gases and volatile organic chemicals from a liquid comprising: a source of liquid having contaminants therein to be removed; means for pressurizing said liquid; a contacting chamber having an inlet opening open to atmosphere and a discharge opening; and means for introducing said pressurized liquid through a plurality of passages open to said contacting chamber so as to cause air to be aspirated into said contacting chamber through said inlet opening such that an enhanced turbulent mixing of said air and water occurs in said contacting chamber; said passages being axially angled to the centerline of said contacting chamber and having a length to diameter ratio of at least 10 to 1.
Claim 2
Independent Claim
117 words
A system for removing dissolved gases and volatile organic chemicals from a liquid comprising: a source of liquid having contaminants therein to be removed; means for pressurizing said liquid; a contacting chamber having an inlet opening open to atmosphere and a discharge opening; and means for introducing said pressurized liquid through a plurality of passages open to said contacting chamber so as to cause air to be aspirated into said contacting chamber through said inlet opening such that an enhanced turbulent mixing of said air and water occurs in said contacting chamber; said passages being axially angled to the centerline of said contacting chamber and having a length to diameter ratio of at least 10 to 1.
Claim 3
Dependent Claim
22 words
A system according to claim 1, wherein said passages include an entrance progressively decreasing in diameter in a direction toward said chamber.
Claim 4
Dependent Claim
21 words
A system according to claim 1, wherein said passages have an exit that is perpendicular to an axis of the passage.
Claim 5
Dependent Claim
22 words
A system according to claim 1, wherein at least some of said passages are skewed to a centerline of the contacting chamber.
Claim 6
Dependent Claim
24 words
A system according to claim 1, wherein said contacting chamber is surrounded by a jacket which forms an annular chamber communicating with said passages.
Claim 7
Dependent Claim
23 words
A system according to claim 1, wherein said contacting chamber is cylindrical and said passages communicate with said chamber circumferentially around said chamber.
Claim 8
Dependent Claim
27 words
A system according to claim 1, wherein said air stream and said liquid stream are directed to flow generally in the same direction within said contacting chamber.
Claim 9
Dependent Claim
28 words
A system according to claim 1, including means for aspirating a volume of air into said contacting chamber in excess of 15 times the volume of supplied liquid.
Claim 10
Dependent Claim
27 words
A system according to claim 1, wherein said contacting chamber is comprised of a plurality of individual ring members held together by means of an outer jacket.
Claim 11
Independent Claim
141 words
A method for removing dissolved gases and volatile organic chemicals from a liquid comprising: supplying a stream of pressurized liquid having contaminants therein to be removed to a contacting chamber having an inlet opening open to atmosphere and a discharge opening lying along an axis of said chamber; and introducing said pressurized liquid through a plurality of passages having a length to diameter ratio of at least 10 to 1 open to said contacting chamber in the form of individual jets directed in an axial, angled direction perpendicular to the axis to form large surface areas in the liquid phase and turbulently mixing the liquid within said jets so as to cause air to be aspirated into said contacting chamber through said inlet opening in a manner to enhance a turbulent mixing of said air and liquid in said contacting chamber.
Claim 12
Independent Claim
141 words
A method for removing dissolved gases and volatile organic chemicals from a liquid comprising: supplying a stream of pressurized liquid having contaminants therein to be removed to a contacting chamber having an inlet opening open to atmosphere and a discharge opening lying along an axis of said chamber; and introducing said pressurized liquid through a plurality of passages having a length to diameter ratio of at least 10 to 1 open to said contacting chamber in the form of individual jets directed in an axial, angled direction perpendicular to the axis to form large surface areas in the liquid phase and turbulently mixing the liquid within said jets so as to cause air to be aspirated into said contacting chamber through said inlet opening in a manner to enhance a turbulent mixing of said air and liquid in said contacting chamber.
Claim 13
Dependent Claim
27 words
A method according to claim 10, wherein said air is aspirated is said axial direction in volumetric amounts in excess of 15 to 1, air to liquid.
Claim 14
Independent Claim
103 words
A method of removing dissolved gases and volatile organic compounds from liquid comprising: supplying a stream of liquid, having at least one of dissolved gases and volatile organic compounds therein to be removed, to a contacting chamber; supplying a stream of air to said contacting chamber; introducing said liquid into said contacting chamber through a plurality of passages having a length to diameter ratio of at least 10 to 1 in the form of cone shaped liquid jets; enhancing a turbulent mixing of the liquid within the individual jets; and enhancing a turbulent mixing of said air and liquid within said contacting chamber.
Claim 15
Independent Claim
103 words
A method of removing dissolved gases and volatile organic compounds from liquid comprising: supplying a stream of liquid, having at least one of dissolved gases and volatile organic compounds therein to be removed, to a contacting chamber; supplying a stream of air to said contacting chamber; introducing said liquid into said contacting chamber through a plurality of passages having a length to diameter ratio of at least 10 to 1 in the form of cone shaped liquid jets; enhancing a turbulent mixing of the liquid within the individual jets; and enhancing a turbulent mixing of said air and liquid within said contacting chamber.
Claim 16
Dependent Claim
27 words
A method according to claim 12, wherein said air stream and said liquid stream are directed to flow generally in the same direction within said contacting chamber.
Claim 17
Dependent Claim
17 words
A method according to claim 12, wherein said liquid is supplied to said contacting chamber under pressure.
Claim 18
Dependent Claim
15 words
A method according to claim 12, wherein said air is aspirated into said contacting chamber.
Claim 19
Dependent Claim
27 words
A method according to claim 12, wherein the volume of air aspirated into said contacting chamber is in excess of 15 times the volume of supplied liquid.
Claim 20
Dependent Claim
19 words
A method according to claim 12, wherein said streams of liquid and air continuously flow through said contacting chamber.
Claim 21
Dependent Claim
24 words
A method according to claim 12, wherein said stream of liquid is passed through said contacting chamber more than once to contact uncontaminated air.
Claim 22
Dependent Claim
22 words
A method according to claim 12, wherein said streams of liquid and air are supplied to said contacting chamber in discrete batches.
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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) | 1994-04-01 | 1994-10-01 | 1995-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-01 | 1998-10-01 | 1999-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-01 | 2002-10-01 | 2003-04-02 | $7700.00 | Window Closed / Lapsed |