US4237004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for treating waste water
Assignee: Le Mere Industries Inc
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Filing: 1978-10-02
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Granted: 1980-12-02
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Expires: 1998-10-02
Abstract
Abstract A method useful for treating waste water is disclosed wherein waste water is collected in a first vessel and a portion of the large solid particles are filtered from said waste waters. The liquid waste including suspended solid particles is combined with a solids coagulant, effective in coagulating solid particles, and the waste is disinfected. In one embodiment, coagulation and disinfection occurs simultaneously in a single treatment vessel. In the treatment vessel, the disinfectant and the coagulant are reacted with the waste waters to form gas bubbles and coagulated solid particles. The reaction of the disinfectant causes a substantial portion of the coagulated solids contained in the treatment vessel to float to the upper portion of the treatment vessel as a result of being carried to the surface by the gas bubbles. The clarified waste water is then removed from an outer chamber in the treatment vessel. In another embodiment, waste water is disinfected by radiation so that gas bubbles are not formed by the disinfection reaction. In this embodiment the coagulated solids are floated to the surface of the treatment vessel by providing small gas, i.e. air, bubbles in the treatment vessel generated from an extraneous source.
Inventors
- 👤 Robert C. Helke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:34
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/72; C02F1/76; C02F1/28; C02F1/283; C02F1/30; C02F1/32; C02F2103/00; C02F2103/008; C02F2303/00; C02F2303/04
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
261 words
A method of treating waste water comprising: collecting waste waters including solid and liquid wastes in a first vessel; separating a portion of the relatively large solid particles having a predetermined minimum particle size from said waste waters; removing a portion of said liquid waste from said first vessel; adding a solids coagulant, effective in coagulating solid particles, and a chlorine containing disinfectant to said removed waste; conveying at least a portion of said removed waste to a second vessel comprising a multicompartment vessel having a plurality of interconnected chambers including a first chamber and a second chamber and further including the steps of introducing said waste water, said coagulant, and said disinfectant into said first chamber to cause a major portion of the solids contained within said waste water to be coagulated and bubbled to an upper portion of said first chamber, and introducing additional waste water onto said layer of coagulated solid particles accumulated in the upper portion of said first chamber to filter said waste water through said coagulated solids within said first chamber of said second vessel and circulating said waste water into said second chamber for further coagulation and disinfection where the velocity of waste water flow is lowered from said first chamber to said second chamber, wherein a minor portion of the solids contained within said waste water floats to an upper portion of said second chamber thereby providing a purer water in said second chamber than in said first chamber of said multicompartmental vessel; and removing the treated waste water from said second chamber.
Claim 2
Independent Claim
261 words
A method of treating waste water comprising: collecting waste waters including solid and liquid wastes in a first vessel; separating a portion of the relatively large solid particles having a predetermined minimum particle size from said waste waters; removing a portion of said liquid waste from said first vessel; adding a solids coagulant, effective in coagulating solid particles, and a chlorine containing disinfectant to said removed waste; conveying at least a portion of said removed waste to a second vessel comprising a multicompartment vessel having a plurality of interconnected chambers including a first chamber and a second chamber and further including the steps of introducing said waste water, said coagulant, and said disinfectant into said first chamber to cause a major portion of the solids contained within said waste water to be coagulated and bubbled to an upper portion of said first chamber, and introducing additional waste water onto said layer of coagulated solid particles accumulated in the upper portion of said first chamber to filter said waste water through said coagulated solids within said first chamber of said second vessel and circulating said waste water into said second chamber for further coagulation and disinfection where the velocity of waste water flow is lowered from said first chamber to said second chamber, wherein a minor portion of the solids contained within said waste water floats to an upper portion of said second chamber thereby providing a purer water in said second chamber than in said first chamber of said multicompartmental vessel; and removing the treated waste water from said second chamber.
Claim 3
Dependent Claim
74 words
A method as defined in claim 1 wherein said coagulant and said disinfectant are added to said waste water at a point prior to the addition of said waste water to said second vessel to form a waste water-coagulant-disinfectant mixture to allow sufficient contact time of said mixture prior to entering said second vessel to achieve coagulation of solid particles and liberation of gas bubbles immediately upon introducing said mixture into said second vessel.
Claim 4
Dependent Claim
22 words
A method as defined in claim 1 wherein said coagulant is effective in coagulating colloidally sized particles suspended in said liquid waste.
Claim 5
Dependent Claim
31 words
A method as defined in claim 1 further including the step of contacting the treated waste water with an absorbant effective in absorbing dissolved organic material from said treated waste water.
Claim 6
Dependent Claim
13 words
A method as defined in claim 4 wherein said absorbant comprises activated charcoal.
Claim 7
Dependent Claim
43 words
A method as defined in claim 1 further including the step of mixing said waste water, said coagulant, and said disinfectant to form a uniform mixture by conveying a mixture of waste water, coagulant, and disinfectant through means for creating turbulent fluid flow.
Claim 8
Dependent Claim
28 words
A method as defined in claim 6 wherein said waste water, coagulant and disinfectant are subjected to turbulent flow prior to conveying said mixture to said second vessel.
Claim 9
Dependent Claim
31 words
A method as defined in claim 1 wherein said relatively large solid particles are removed from said waste waters by conveying said waste waters through filters disposed within said first vessel.
Claim 10
Dependent Claim
59 words
A method as defined in claim 1 wherein said first chamber of said multicompartmental second vessel is an inner chamber and wherein said second chamber of said multicompartmental second vessel is an outer chamber so that said waste water is conveyed to said inner chamber of said second vessel and circulated to said outer chamber of said second vessel.
Claim 11
Independent Claim
272 words
A method of treating waste water comprising: collecting waste waters including solid and liquid wastes in a first vessel; separating a portion of the relatively large solid particles having a predetermined minimum particle size from said waste waters; removing a portion of said liquid waste from said first vessel; adding a solids coagulant, effective in coagulating solid particles, and a chlorine containing disinfectant to said removed waste; conveying at least a portion of said removed waste to a second vessel comprising a multicompartment vessel having a plurality of interconnected chambers including a first chamber and a second chamber said first chamber being in fluid communication with said second chamber substantially only below said first chamber and further including the steps of introducing said waste water, said coagulant, and said disinfectant into an upper portion of said first chamber in a continuous manner to cause said waste water, coagulant, and disinfectant to flow through said first chamber, under said first chamber and into said second chamber, and to cause a major portion of the solids contained within said waste water to be coagulated and bubbled to an upper portion of said first chamber, and circulating said waste water into said second chamber for further coagulation and disinfection where the velocity of waste water flow is lowered from said first chamber to said second chamber, wherein a minor portion of the solids contained within said waste water floats to an upper portion of said second chamber thereby providing a purer water in said second chamber than in said first chamber of said multicompartmental vessel; and removing the treated waste water from said second chamber.
Claim 12
Independent Claim
272 words
A method of treating waste water comprising: collecting waste waters including solid and liquid wastes in a first vessel; separating a portion of the relatively large solid particles having a predetermined minimum particle size from said waste waters; removing a portion of said liquid waste from said first vessel; adding a solids coagulant, effective in coagulating solid particles, and a chlorine containing disinfectant to said removed waste; conveying at least a portion of said removed waste to a second vessel comprising a multicompartment vessel having a plurality of interconnected chambers including a first chamber and a second chamber said first chamber being in fluid communication with said second chamber substantially only below said first chamber and further including the steps of introducing said waste water, said coagulant, and said disinfectant into an upper portion of said first chamber in a continuous manner to cause said waste water, coagulant, and disinfectant to flow through said first chamber, under said first chamber and into said second chamber, and to cause a major portion of the solids contained within said waste water to be coagulated and bubbled to an upper portion of said first chamber, and circulating said waste water into said second chamber for further coagulation and disinfection where the velocity of waste water flow is lowered from said first chamber to said second chamber, wherein a minor portion of the solids contained within said waste water floats to an upper portion of said second chamber thereby providing a purer water in said second chamber than in said first chamber of said multicompartmental vessel; and removing the treated waste water from said second chamber.
Claim 13
Dependent Claim
21 words
A method as defined in claim 10 further including removing said waste water from an upper portion of said second chamber.
Claim 14
Independent Claim
302 words
A method of treating waste water comprising: collecting waste waters including solid and liquid wastes in a first vessel; separating a portion of the relatively large solid particles having a predetermined minimum particle size from said waste waters; removing a portion of said liquid waste from said first vessel; adding a solids coagulant, effective in coagulating solid particles, and a disinfectant to said removed waste; conveying at least a portion of said removed waste to a second vessel comprising a multicompartmental vessel having a plurality of interconnected chambers including a first chamber and a second chamber and further including the steps of introducing said waste water, said coagulant, and said disinfectant into said first chamber to cause a major portion of the solids contained within said waste water to be coagulated and bubbled to an upper portion of said first chamber, and introducing additional waste water onto said layer of coagulated solid particles accumulated in the upper portion of said first chamber to filter said waste water through said coagulated solids within said first chamber of said second vessel and circulating said waste water into said second chamber for further coagulation and disinfection where the velocity of waste water flow is lowered from said first chamber to said second chamber wherein a minor portion of the solids contained within said waste water floats to an upper portion of said second chamber thereby providing a purer water in said second chamber than in said first chamber of said multicompartmental vessel; injecting gas bubbles into said vessel to cause a major portion of said coagulated solids to rise in said first chamber of said second vessel and a minor portion of said coagulated solids to rise in said second chamber of said second vessel; and removing the treated waste water from said second chamber.
Claim 15
Independent Claim
302 words
A method of treating waste water comprising: collecting waste waters including solid and liquid wastes in a first vessel; separating a portion of the relatively large solid particles having a predetermined minimum particle size from said waste waters; removing a portion of said liquid waste from said first vessel; adding a solids coagulant, effective in coagulating solid particles, and a disinfectant to said removed waste; conveying at least a portion of said removed waste to a second vessel comprising a multicompartmental vessel having a plurality of interconnected chambers including a first chamber and a second chamber and further including the steps of introducing said waste water, said coagulant, and said disinfectant into said first chamber to cause a major portion of the solids contained within said waste water to be coagulated and bubbled to an upper portion of said first chamber, and introducing additional waste water onto said layer of coagulated solid particles accumulated in the upper portion of said first chamber to filter said waste water through said coagulated solids within said first chamber of said second vessel and circulating said waste water into said second chamber for further coagulation and disinfection where the velocity of waste water flow is lowered from said first chamber to said second chamber wherein a minor portion of the solids contained within said waste water floats to an upper portion of said second chamber thereby providing a purer water in said second chamber than in said first chamber of said multicompartmental vessel; injecting gas bubbles into said vessel to cause a major portion of said coagulated solids to rise in said first chamber of said second vessel and a minor portion of said coagulated solids to rise in said second chamber of said second vessel; and removing the treated waste water from said second chamber.
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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) | 1983-12-02 | 1984-06-02 | 1984-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-02 | 1988-06-02 | 1988-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-02 | 1992-06-02 | 1992-12-02 | $7700.00 | Window Closed / Lapsed |