Liquid purification system with zetapotential control of chemical additives
Abstract
Abstract AN ANTI-POLLUTION SYSTEM FOR FLOWING LIQUIDS WHICH IS PARTICULARLY ADAPTED TO THE TREATMENT OF FLOWING AQUEOUS SYSTEMS POLLUTED WITH SEWAGE, INDUSTRIAL WASTES, OR THE LIKE. THE SYSTEM IS EXPECIALLY ADAPTED TO REMOVE COLLOIDS FROM THE LIQUID BY CAUSING FLOCCULATION AND COAGULATION OF THE COLLOIDS. THIS IS ACCOMPLISHED BY CONTROLLING THE ZETA-POTENTIAL OF THE LIQUID AT THE INITIAL STAGES IN SUCH A MANNER THAT FLOCCULATION AND COAGULATION OF THE COLLOIDS IS SUBSTANTIALLY EFFECTED AT THAT POINT. AFTER A ZETA-POTENTIAL VALUE IS DETERMINED AND OBTAINED BY THE INSERTION OF CHEMICAL ADDITIVES, THE SUBSEQUENT FLOW OF THE LIQUID IS SCANNED BY AN AUTOMATIC CONTROL UNIT WHICH ADJUSTS THE AMOUNT AND RATE OF INSERTION OF THE CHEMICAL ADDITIVES AT THE INITIAL STAGES IN ACCORDANCE WITH ANY VARIATION OF THE ZETA-POTENTIAL FROM A PREDETERMINED VALUE.
Inventors
- 👤 Rolf C Carlson
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |