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US3893900A
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US
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Apparatus for treating wastewater using an electrolytic cell
Assignee: Stanley Electric Co Ltd
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Filing: 1973-05-21
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Granted: 1975-07-08
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Expires: 1993-05-21
Abstract
Abstract An apparatus for treating wastewater by the use of an electrolytic cell, a pair of main electrodes opposed in the electrolytic cell to each other, a power source connected to the main electrodes, and a plurality of auxiliary electrodes disposed between the main electrodes, in which the auxiliary electrodes are bar electrodes of conductive material arranged in parallel with the main electrodes at such spaces as to avoid short circuits thereamong and so as to form a plurality of rows and a plurality of columns, thereby effectively increasing the contact surface areas of the auxiliary electrodes and the wastewater to be treated. The conductive material of the bar electrodes is of carbon, graphite, an oxidized metal or at least one of alloys to remove at least one cyanide and other impurities from the wastewater. The bar electrodes are held by an open casing. A storage cell may be further provided at the bottom of the electrolytic cell by the use of partition having a number of holes to introduce the wastewater through the storage cell. A number of insulating bars are provided at spaces among the auxiliary bar electrodes for causing pulsating currents of the wastewater in the electrolytic cell.
Inventors
- 👤 Toru Teshima
- 👤 Toshiie Nagasao
- 👤 Minoru Tanaka
- 👤 Kazuo Ariga
- 👤 Yoshiko Takamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:55
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/46; C02F1/461; C02F1/46104; C02F1/46109; C02F1/463; C02F1/467; C02F1/4672; C02F2001/46119; C02F2001/46128; C02F2001/46133; C02F2001/46152; C02F2101/00; C02F2101/10; C02F2101/16; C02F2101/18; C02F2101/20; C02F2201/00; C02F2201/46; C02F2201/461; C02F2201/46105; C02F2201/4611
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
166 words
APPARATUS FOR TREATING WASTEWATER COMPRISING AN ELECTROLYTIC CELL A APIR OF MAIN ELECTRODES OPPOSED IN THE ELECTROLYTIC CELL TO EACH OTHER, A POWER SOURCE CONNECTED TO THE MAIN ELECTRODES, A PLURALITY OF AUXILIARY ELECTRODES DISPOSED BETWEEN THE MAIN ELECTRODES, THE AUXILIARY ELECTRODES BEING BAR ELECTRODES OF CONDUCTIVE MATERIAL ARRANGED AT SUCH SPACES AS TO AVOID SHORT CIRCUITS THEREAMONG AND SO AS TO FORM A PLURALITY OF ROWS AND PLURALITY OF COLUMNS, THEREBY EFFECTIVELY INCREASING THE CONTACT SURFACE AREA OF THE AUXILIARY ELECTRODES AND THE WASTEWATER, SAID ELECTROLYIC CELL HAVING A PERFORATED PARTION SPACED FROM THE BOTTOM OF THE CELL AND DEFINING THEREWITH A STORAGE CELL, SAID STORAGE CELL HAVING A WASTEWATER INLET WHEREBY WASTEWATER IS INTRODUCED INTO THE ELECTROLYTIC CELL THROUGH THE STORAGE CELL AND THE PERFORMATIONS IN THE PARTION, AND A PLURALITY OF INSULATING BARS DISPOSED IN THE SPACES, RESPECTIVELY, PARALLEL WITH AND REPETITIVELY STAGGERED RELATIVE TO SAID AUXILIARY ELECTRODES AND ISOLATED THEREFROM WHEREBY TO CAUSE PULSATING CURRENTS OF THE WASTEWATER IN THE ELECTROLYTIC CELL.
Claim 2
Dependent Claim
166 words
APPARATUS FOR TREATING WASTEWATER COMPRISING AN ELECTROLYTIC CELL A APIR OF MAIN ELECTRODES OPPOSED IN THE ELECTROLYTIC CELL TO EACH OTHER, A POWER SOURCE CONNECTED TO THE MAIN ELECTRODES, A PLURALITY OF AUXILIARY ELECTRODES DISPOSED BETWEEN THE MAIN ELECTRODES, THE AUXILIARY ELECTRODES BEING BAR ELECTRODES OF CONDUCTIVE MATERIAL ARRANGED AT SUCH SPACES AS TO AVOID SHORT CIRCUITS THEREAMONG AND SO AS TO FORM A PLURALITY OF ROWS AND PLURALITY OF COLUMNS, THEREBY EFFECTIVELY INCREASING THE CONTACT SURFACE AREA OF THE AUXILIARY ELECTRODES AND THE WASTEWATER, SAID ELECTROLYIC CELL HAVING A PERFORATED PARTION SPACED FROM THE BOTTOM OF THE CELL AND DEFINING THEREWITH A STORAGE CELL, SAID STORAGE CELL HAVING A WASTEWATER INLET WHEREBY WASTEWATER IS INTRODUCED INTO THE ELECTROLYTIC CELL THROUGH THE STORAGE CELL AND THE PERFORMATIONS IN THE PARTION, AND A PLURALITY OF INSULATING BARS DISPOSED IN THE SPACES, RESPECTIVELY, PARALLEL WITH AND REPETITIVELY STAGGERED RELATIVE TO SAID AUXILIARY ELECTRODES AND ISOLATED THEREFROM WHEREBY TO CAUSE PULSATING CURRENTS OF THE WASTEWATER IN THE ELECTROLYTIC CELL.
Claim 3
Dependent Claim
182 words
Apparatus for treating wastewater compriSing an electrolytic cell a pair of main electrodes opposed in the electrolytic cell to each other, a power source connected to the main electrodes, a plurality of auxiliary electrodes disposed between the main electrodes, the auxiliary electrodes being bar electrodes of conductive material arranged at such spaces as to avoid short circuits thereamong and so as to form a plurality of rows and a plurality of columns, thereby effectively increasing the contact surface areas of the auxiliary electrodes and the wastewater, open casing means for holding said auxiliary bar electrodes in parallel with the main electrodes, said electrolytic cell having a perforated partition spaced from the bottom of the cell and defining therewith a storage cell, said storage cell having a wastewater inlet whereby wastewater is introduced into the electrolytic cell through the storage cell and the perforations in the partition, and a plurality of insulating bars disposed in the spaces, respectively, parallel with and repetitively staggered relative to said auxiliary electrodes and isolated therefrom whereby to cause pulsating currents of the wastewater in the electrolytic cell.
Claim 4
Dependent Claim
182 words
Apparatus for treating wastewater compriSing an electrolytic cell a pair of main electrodes opposed in the electrolytic cell to each other, a power source connected to the main electrodes, a plurality of auxiliary electrodes disposed between the main electrodes, the auxiliary electrodes being bar electrodes of conductive material arranged at such spaces as to avoid short circuits thereamong and so as to form a plurality of rows and a plurality of columns, thereby effectively increasing the contact surface areas of the auxiliary electrodes and the wastewater, open casing means for holding said auxiliary bar electrodes in parallel with the main electrodes, said electrolytic cell having a perforated partition spaced from the bottom of the cell and defining therewith a storage cell, said storage cell having a wastewater inlet whereby wastewater is introduced into the electrolytic cell through the storage cell and the perforations in the partition, and a plurality of insulating bars disposed in the spaces, respectively, parallel with and repetitively staggered relative to said auxiliary electrodes and isolated therefrom whereby to cause pulsating currents of the wastewater in the electrolytic cell.
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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) | 1978-07-07 | 1979-01-06 | 1979-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-07 | 1983-01-06 | 1983-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-07 | 1987-01-06 | 1987-07-08 | $7700.00 | Window Closed / Lapsed |