US3856642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for electrosanitizing waste water
Assignee: Eltech Systems Ltd
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Filing: 1973-06-21
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Granted: 1974-12-24
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Expires: 1993-06-21
Abstract
Abstract A process for oxidizing and disinfecting waste water comprises providing an alkali metal chloride-containing waste water to a first container wherein it is agitated and macerated and electrolyzing at least a portion of said waste water to produce chlorine therein, followed by transfer to a second container wherein it is further agitated and, optionally, electrolyzed, prior to discharge. An apparatus suited to conducting the process is described.
Inventors
- 👤 D Lieb
- 👤 N Stillman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:58
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/46; C02F1/461; C02F1/467; C02F1/4672; C02F1/4674; C02F1/46104; C02F1/46109; C02F2001/46128; C02F2001/46152; C02F2103/00; C02F2103/005; C02F2201/00; C02F2201/46; C02F2201/461; C02F2201/46105; C02F2201/4611; C02F2301/00; C02F2301/08; C02F2303/00; C02F2303/04; Y; Y10; Y10S; Y10S4/00; Y10S4/17
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
117 words
A PROCESS FOR THE TREATMENT OF WASTE WATER, WHICH PROCESS COMPRISES: A. PROVIDING A BATCH OF AN ALKALI METAL CHLORIDE-CONTAINING WASTE WATER TO A FIRST CONTAINER; B. AGITATING AND MACERATING SAID WASTE WATER WHEREBY ANY SOLIDS CONTAINED THEREIN ARE COMMINUTED; C. WHILE AGITATING AND MACERATING, SUBJECTING SAID WASTE WATER TO ELECTROLYSIS WHEREBY CHLORINE IS PRODUCED; D. HALTING SAID AGITATION, MACERATION, AND ELECTROLYSIS; E. SUBSEQUENTLY, BY MEANS OF A SECOND BATHC OF ALKALI METAL CHLORIDE-CONTAINING WASTE WATER, TRANSFERRING THE THUSTREATED WASTE WATER TO A SECOND CONTAINER WHEREIN IT IS FURTHER AGITATED AND SUBJECTED TO CHLORINE-PRODUCING ELECTROLYSIS; AND F. REMOVING THE THUS-PURIFIED WATER FROM SAID SECOND CONTAINER BY MEANS OF THE INTRODUCTION OF FURTHER BATCH TO THE FIRST CONTAINER.
Claim 2
Dependent Claim
117 words
A PROCESS FOR THE TREATMENT OF WASTE WATER, WHICH PROCESS COMPRISES: A. PROVIDING A BATCH OF AN ALKALI METAL CHLORIDE-CONTAINING WASTE WATER TO A FIRST CONTAINER; B. AGITATING AND MACERATING SAID WASTE WATER WHEREBY ANY SOLIDS CONTAINED THEREIN ARE COMMINUTED; C. WHILE AGITATING AND MACERATING, SUBJECTING SAID WASTE WATER TO ELECTROLYSIS WHEREBY CHLORINE IS PRODUCED; D. HALTING SAID AGITATION, MACERATION, AND ELECTROLYSIS; E. SUBSEQUENTLY, BY MEANS OF A SECOND BATHC OF ALKALI METAL CHLORIDE-CONTAINING WASTE WATER, TRANSFERRING THE THUSTREATED WASTE WATER TO A SECOND CONTAINER WHEREIN IT IS FURTHER AGITATED AND SUBJECTED TO CHLORINE-PRODUCING ELECTROLYSIS; AND F. REMOVING THE THUS-PURIFIED WATER FROM SAID SECOND CONTAINER BY MEANS OF THE INTRODUCTION OF FURTHER BATCH TO THE FIRST CONTAINER.
Claim 3
Dependent Claim
38 words
A method as in claim 1 wherein the first container contains waste water and the second container contains partially-treated waste water and agitation, maceration, and electrolysis in the first container occur simultaneously with agitation in the second container.
Claim 4
Dependent Claim
15 words
A process as in claim 2 wherein electrolysis also occurs simultaneously in said second container.
Claim 5
Dependent Claim
145 words
A process for the treatment of waste water which comprises: a. providing an alkali metal chloride-containing waste water to a first container; b. providing a partially-treated, alkali metal chloride-containing waste water from said first container to a second container; c. agitating and macerating said waste water in said first container whereby any solids contained therein are comminuted; d. simultaneously agitating said partially-treated waste water in said second container whereby any particles contained therein are suspended; e. simultaneously subjecting said waste water in said first and second containers to electrolysis whereby chlorine is produced; f. halting said agitation, maceration, and electrolysis; and g. subsequently introducing waste water to be treated to said first container, said introduction causing the now partially-treated waste water in said first container to transfer to said second container and, in turn, the now completely-treated waste water in said second container to discharge.
Claim 6
Dependent Claim
145 words
A process for the treatment of waste water which comprises: a. providing an alkali metal chloride-containing waste water to a first container; b. providing a partially-treated, alkali metal chloride-containing waste water from said first container to a second container; c. agitating and macerating said waste water in said first container whereby any solids contained therein are comminuted; d. simultaneously agitating said partially-treated waste water in said second container whereby any particles contained therein are suspended; e. simultaneously subjecting said waste water in said first and second containers to electrolysis whereby chlorine is produced; f. halting said agitation, maceration, and electrolysis; and g. subsequently introducing waste water to be treated to said first container, said introduction causing the now partially-treated waste water in said first container to transfer to said second container and, in turn, the now completely-treated waste water in said second container to discharge.
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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) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |