US4252654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for water treatment
Assignee: Messer Griesheim GmbH
•
Filing: 1979-06-14
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Granted: 1981-02-24
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Expires: 1999-06-14
Abstract
Abstract A process for the treatment of water in which at least a partial flow of the water is brought into contact under pressure in a packed column with an ozone-oxygen mixture from an ozonizer with the ozone and a portion of the oxygen being dissolved in the water and the undissolved oxygen being returned to the ozonizer and with the charged water being withdrawn from the column, includes branching off a partial flow from the column water to a water jet-gas compressor in which the ozone-oxygen mixture from the ozonizer is adsorbed and compresed and mixed with the partial flow after which the mixture of water, ozone and oxygen is led into the base of the packed column.
Inventors
- 👤 Ortwin Leitzke
- 👤 Arnold Gietmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:25
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/1278; C02F3/1294; C02F1/00; C02F1/72; C02F1/78; C02F2201/00; C02F2201/78; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
173 words
In a process for the treatment of water, particularly for treating drinking water and for purifying waste water in which, for the oxidation of undesirable substances in the water and for the improvement of the coagulation of such materials, at least a partial flow of the water to be treated is brought into contact under pressure in a packed column with an ozone-oxygen mixture from an ozonizer, whereby the ozone and a portion of the oxygen is dissolved in the water and the oxygen which is not dissolved is returned to the ozonizer and whereby the water which is charged with ozone and oxygen is withdrawn from the column; the improvement being a partial flow is branched off from the water which is provided to the packed column and is led through a water jet-gas compressor in which the ozone-oxygen mixture from the ozonizer is adsorbed and compressed and mixed with the partial flow after which the mixture of water and ozone and oxygen is led into the base of the packed column.
Claim 2
Dependent Claim
173 words
In a process for the treatment of water, particularly for treating drinking water and for purifying waste water in which, for the oxidation of undesirable substances in the water and for the improvement of the coagulation of such materials, at least a partial flow of the water to be treated is brought into contact under pressure in a packed column with an ozone-oxygen mixture from an ozonizer, whereby the ozone and a portion of the oxygen is dissolved in the water and the oxygen which is not dissolved is returned to the ozonizer and whereby the water which is charged with ozone and oxygen is withdrawn from the column; the improvement being a partial flow is branched off from the water which is provided to the packed column and is led through a water jet-gas compressor in which the ozone-oxygen mixture from the ozonizer is adsorbed and compressed and mixed with the partial flow after which the mixture of water and ozone and oxygen is led into the base of the packed column.
Claim 3
Dependent Claim
30 words
Process according to claim 1, characterized in that the mixture of water and ozone and oxygen which leaves the water jet-gas compressor has a pressure of at least 3 bar.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-02-24 | 1984-08-25 | 1985-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-24 | 1988-08-25 | 1989-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-24 | 1992-08-25 | 1993-02-24 | $7700.00 | Window Closed / Lapsed |