US4003832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of applying ozone and sonic energy to sterilize and oxidize waste water
Assignee: TII Corp
•
Filing: 1975-11-24
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Granted: 1977-01-18
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Expires: 1995-11-24
Abstract
Abstract A tertiary waste water treatment system wherein the waste water is subjected to physical chemical processes. The waste water is treated with a coagulating agent, a polyelectrolyte and then is clarified in a lamina preferably of unique design. The clarified waste water is then filtered and passed through an ozonation-sonication chamber wherein the liquid flows counter to the ozone. Within the tower, the liquid is subjected to substantial levels of sonication, enough to cause cavitation, either simultaneously with or prior to encountering large concentrations of ozone. After the ozonation-sonication treatment, the effluent may be discharged or it may be passed through an ozone contact chamber.
Inventors
- 👤 Angus D. Henderson
- 👤 John M. Periale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:31
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/0039; B01D21/0057; B01D21/0012; B01D21/0045; B01D21/0069; B01D21/24; B01D21/2427; B01D21/28; B01D21/283; C; C02; C02F; C02F1/00; C02F1/34; C02F1/36; C02F1/52; C02F1/5236; C02F1/5281; C02F1/54; C02F1/72; C02F1/78; C02F9/00; Y; Y10; Y10S; Y10S261/00; Y10S261/42; Y10S261/48
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
160 words
A method of treating waste water having entrained solids and dissolved contaminants therein, comprising the steps of: adding a coagulating agent to said waste water; adding a polyelectrolyte to said waste water to form a floc; then passing said waste water through a lamina to remove a substantial portion of any solids suspended therein; passing said waste water in a counter-flow through a large gravity gradient stand of water; and subjecting said waste water to the pre-treatment of ozone and sonic energy to cause cavitation therein, said waste water being subject to said cavitation at increasing energy levels while it encounters increasing concentrations of said ozone; forcing said waste water through a restriction into a hydraulic gradient of water and subjecting said waste water to highly confined and increasingly concentrated quantities of ozone in the presence of high ultransonic energy at increasing energy levels to effect cavitation within said waste water for effective sterilization and oxidation of said waste water.
Claim 2
Independent Claim
160 words
A method of treating waste water having entrained solids and dissolved contaminants therein, comprising the steps of: adding a coagulating agent to said waste water; adding a polyelectrolyte to said waste water to form a floc; then passing said waste water through a lamina to remove a substantial portion of any solids suspended therein; passing said waste water in a counter-flow through a large gravity gradient stand of water; and subjecting said waste water to the pre-treatment of ozone and sonic energy to cause cavitation therein, said waste water being subject to said cavitation at increasing energy levels while it encounters increasing concentrations of said ozone; forcing said waste water through a restriction into a hydraulic gradient of water and subjecting said waste water to highly confined and increasingly concentrated quantities of ozone in the presence of high ultransonic energy at increasing energy levels to effect cavitation within said waste water for effective sterilization and oxidation of said waste water.
Claim 3
Dependent Claim
37 words
A method for treating waste water according to claim 1 where there is a pre-treatment of the waste water with sonic energy and ozone prior to the waste water reaching a zone of maximum ozonation and sonication.
Claim 4
Dependent Claim
20 words
A method according to claim 2 where the sonic pre-treatment is at relatively low frequency just into the ultrasonic range.
Claim 5
Dependent Claim
25 words
A method according to claim 1 where the sonication imparts acoustic energy to the waste water so as not to reflect onto the source thereof.
Claim 6
Dependent Claim
16 words
A method according to claim 1 where the water is subjected to sonication at different frequencies.
Claim 7
Dependent Claim
20 words
A method according to claim 1 where the water is subjected to sonication at different frequencies and at different times.
References Cited (Backward Citations)
US1865433A
Cited
US2417722A
Cited
US3264213A
Cited
US3458140A
Cited
US3672823A
Cited
US3686115A
Cited
US3807563A
Cited
US3886064A
Cited
US3772188A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-01-18 | 1980-07-19 | 1981-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-18 | 1984-07-19 | 1985-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-18 | 1988-07-19 | 1989-01-18 | $7700.00 | Window Closed / Lapsed |