Method for the treatment of water
Abstract
Abstract Method for treating such water which contains metal ions, oils or suspended solids through a series of processes: the first process in which water containing metal ions, oils or suspended solids is electrolyzed in the first electrolytic cell provided with an anode made of aluminum or aluminum alloy while blowing air into said water, so that said metal ions, oils or suspended solids are changed to compounds insoluble in water; then, the second process in which anionic water-soluble high molecular materials are added to the water obtained from said first process, so that said compounds are converted into coagulums which by their structures are apt to ascend to and float on the water surface; and finally the third process in which the water obtained from the second process is electrolyzed in the second electrolytic cell provided with an insoluble anode, so that all said coagulums are substantially caused to ascend to and float on the water surface so as to be separated from the water, thus obtaining harmless and clean water.
Inventors
- 👤 M Ichiki
- 👤 K Nakade
Bibliographic Details
Claims Analysis
Total Claims: 3References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |