US3627136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for biological cleaning of organically polluted liquids composed of building units
Assignee: Czech Academy of Sciences
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Filing: 1970-07-01
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Granted: 1971-12-14
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Expires: 1990-07-01
Abstract
Abstract An arrangement for biological cleaning of organically polluted liquids composed of building units including at least two substantially cylindrical horizontal bodies which are placed alongside the other, with the upper part of their mantles forming the bottom of a separating space of the cleaned liquid and of the coagulated suspension, said separating space being provided between the upper parts of the mantles of said cylindrical bodies. The cylindrical bodies communicate with each other, one of the bodies communicates with the separating space which has a trough to discharge clarified liquid.
Inventors
- 👤 Svatopluk Mackrle
- 👤 Vladimir Mackrle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:16
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/1236; C02F3/1252; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
181 words
An arrangement for biological cleaning of organically polluted liquids by bioflocculation and subsequent separation of the created suspension by filtration through an imperfectly floating sludge blanket comprising in combination: at least two substantially cylindrical vessels with a horizontal axis forming at least partly bioflocculation spaces, said cylindrical vessels arranged one alongside the other firmly connected at their contact line, the upper parts of their mantles forming at least partly the bottom of a separating space, the separating space provided between the upper part of the mantles of both cylindrical vessels means for the supply of the treated liquid with agents promoting coagulation into at least one of said vessels means connecting the two vessels for flow of liquid means for the supply of dispersed air into said vessels, positioned to promote a rotating motion of the liquid along the longitudinal axis of the vessels means to discharge liquid from a vessel to said separating space means for the discharge of the cleaned liquid from the separating space, means for the discharge of the separated sludge at the bottom of said vessels.
Claim 2
Dependent Claim
181 words
An arrangement for biological cleaning of organically polluted liquids by bioflocculation and subsequent separation of the created suspension by filtration through an imperfectly floating sludge blanket comprising in combination: at least two substantially cylindrical vessels with a horizontal axis forming at least partly bioflocculation spaces, said cylindrical vessels arranged one alongside the other firmly connected at their contact line, the upper parts of their mantles forming at least partly the bottom of a separating space, the separating space provided between the upper part of the mantles of both cylindrical vessels means for the supply of the treated liquid with agents promoting coagulation into at least one of said vessels means connecting the two vessels for flow of liquid means for the supply of dispersed air into said vessels, positioned to promote a rotating motion of the liquid along the longitudinal axis of the vessels means to discharge liquid from a vessel to said separating space means for the discharge of the cleaned liquid from the separating space, means for the discharge of the separated sludge at the bottom of said vessels.
Claim 3
Dependent Claim
75 words
An arrangement as set forth in claim 1, at least one of said cylindrical horizontal vessels forming a bioflocculation space connected with the bottom of the separating space by openings, a deaeration space provided in said cylindrical vessel adjacent to said openings, said deaeration space connected with the remaining space of this vessel solely at the bottom of the deaeration space and below said openings, venting means provided at the top of the deaeration space.
Claim 4
Dependent Claim
35 words
An arrangement as set forth in claim 1, both said substantially cylindrical vessels forming bioflocculation spaces, interconnected at both ends by connecting pipes, enabling a simultaneous longitudinal circulation of the liquid in both cylindrical vessels.
Claim 5
Dependent Claim
49 words
An arrangement as set forth in claim 2 provided with a baffle wall below the opening connecting the bottom of the separating space with the deaeration space, said baffle wall separating the ascending liquid with rests of the dispersed air from the sediment suspension descending from the separating space.
Claim 6
Dependent Claim
26 words
An arrangement as set forth in claim 3 pumps means provided in one of the connecting pipes, connecting both ends of both vessels forming bioflocculation spaces.
Claim 7
Dependent Claim
16 words
An arrangement as set forth in claim 1 in which the cylindrical vessels are mutually connected.
References 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) | 1974-12-13 | 1975-06-14 | 1975-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-13 | 1979-06-14 | 1979-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-13 | 1983-06-14 | 1983-12-14 | $7700.00 | Window Closed / Lapsed |