US4110209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for treating a medium containing water with coagulants
Assignee: Individual
•
Filing: 1976-06-01
•
Granted: 1978-08-29
•
Expires: 1996-06-01
Abstract
Abstract Method for increasing the chemical efficiency of precipitating agents having a metal base in the treatment of water, waste water or sludge. The medium to be treated is initially conducted by pressure into a mixing cell where it is mixed in free turbulence with a precipitant solution and caused to react to form a reaction mixture containing flocs. The reaction mixture is conducted into a separating basin in which the flocs are removed from the clear water.
Inventors
- 👤 Walter Vogel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:57
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/24; C02F1/52
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
81 words
A method for increasing the chemical efficiency of a precipitating agent having a metal base in the treatment of a medium containing water, comprising: initially conducting, by pressure the medium to be treated into a mixing cell and mixing it in the mixing cell in free turbulence with a precipitant solution containing the precipitating agent to form a reaction mixture containing flocs, conducting the reaction mixture into a separating basin and removing the flocs from clear water in the separating basin.
Claim 2
Independent Claim
81 words
A method for increasing the chemical efficiency of a precipitating agent having a metal base in the treatment of a medium containing water, comprising: initially conducting, by pressure the medium to be treated into a mixing cell and mixing it in the mixing cell in free turbulence with a precipitant solution containing the precipitating agent to form a reaction mixture containing flocs, conducting the reaction mixture into a separating basin and removing the flocs from clear water in the separating basin.
Claim 3
Dependent Claim
27 words
The method as defined in claim 1 wherein the precipitant solution contains as a precipitating agent at least one water soluble, aluminum salt or iron (III) salt.
Claim 4
Dependent Claim
27 words
The method as defined in claim 1 wherein the medium to be treated is supersaturated with gas under pressure before it is introduced into the mixing cell.
Claim 5
Dependent Claim
14 words
The method as defined in claim 3 wherein the gas under pressure is air.
Claim 6
Dependent Claim
23 words
The method as defined in claim 3 wherein the supersaturation of the medium with gas under pressure is effected in a pressure vessel.
References Cited (Backward Citations)
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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) | 1981-08-28 | 1982-02-27 | 1982-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-08-28 | 1986-02-27 | 1986-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-08-28 | 1990-02-27 | 1990-08-29 | $7700.00 | Window Closed / Lapsed |