US4517094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating organics contaminated water
Assignee: Southern Clay Products Inc
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Filing: 1983-06-28
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Granted: 1985-05-14
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Expires: 2003-06-28
Abstract
Abstract A method is provided for removing organic contaminants from an aqueous composition contaminated therewith. The method comprises passing the composition through a first column packed with an organoclay, to adsorb substantial quantities of high molecular weight and/or emulsified components of said organic contaminants, and passing the effluent from said first column through further separating means for separating substantial quantities of the low molecular components of said organic contaminants which remain in the effluent from said first column, and recovering the effluent from said separate means as product.
Inventors
- 👤 Gary W. Beall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:21
CPC Classifications
B; B09; B09B; B09B1/00; C; C02; C02F; C02F1/00; C02F1/28; C02F1/288; E; E02; E02D; E02D31/00; E02D31/002; E02D31/004; Y; Y10; Y10S; Y10S210/00; Y10S210/902; Y10S210/908; Y10S210/909
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
102 words
A method for removing organic contaminants from an aqueous composition contaminated with mixtures of said organic contaminants, comprising: passing the composition through a first column packed with an organoclay, to adsorb substantial quantities of high molecular weight and/or emulsified components of said organic contaminants; and passing the effluent from said first column through further separating means consisting of activated carbon, air stripping means and combinations of the same for separating substantial quantities of the low molecular weight components of said organic contaminants which remain in the effluent from said first column; and recovering the effluent from said further separating means as product.
Claim 2
Independent Claim
102 words
A method for removing organic contaminants from an aqueous composition contaminated with mixtures of said organic contaminants, comprising: passing the composition through a first column packed with an organoclay, to adsorb substantial quantities of high molecular weight and/or emulsified components of said organic contaminants; and passing the effluent from said first column through further separating means consisting of activated carbon, air stripping means and combinations of the same for separating substantial quantities of the low molecular weight components of said organic contaminants which remain in the effluent from said first column; and recovering the effluent from said further separating means as product.
Claim 3
Dependent Claim
20 words
A method in accordance with claim 1, wherein said further separating means comprises a column packed with porous activated carbon.
Claim 4
Dependent Claim
14 words
A method in accordance with claim 2, wherein said carbon comprises granulated activated charcoal.
Claim 5
Dependent Claim
17 words
A method in accordance with claim 1, wherein said further separating means comprises an air stripping tower.
Claim 6
Independent Claim
18 words
The method of claims 1, 2 or 3, wherein the organoclay is a higher dialkyl dimethyl ammonium organoclay.
Claim 7
Independent Claim
19 words
The method of claims 1, 2 or 3, wherein the organoclay is a dimethyl benzyl (hydrogenated tallow) ammonium clay.
Claim 8
Independent Claim
18 words
The method of claims 1, 2 or 3, wherein the organoclay is a dimethyl di(hydrogenated tallow) ammonium clay.
Claim 9
Independent Claim
16 words
The method of claims 1, 2 or 3, wherein the aqueous composition is a gasoline-water mixture.
Claim 10
Independent Claim
17 words
The method of claims 1, 2 or 3, wherein the aqueous composition includes PCB's and an oil.
Claim 11
Dependent Claim
64 words
An improved method for separation of high molecular weight organic contaminants from an aqueous composition contaminated therewith, comprising: passing the composition through a first column packed with an organoclay to absorb the bulk of said contaminants; and passing the effluent from said first column through a second column packed with porous activated carbon to remove substantial quantities of the remaining traces of said contaminants.
Claim 12
Dependent Claim
64 words
An improved method for separation of high molecular weight organic contaminants from an aqueous composition contaminated therewith, comprising: passing the composition through a first column packed with an organoclay to absorb the bulk of said contaminants; and passing the effluent from said first column through a second column packed with porous activated carbon to remove substantial quantities of the remaining traces of said contaminants.
Claim 13
Dependent Claim
14 words
A method in accordance with claim 10, wherein said contaminants include oils and/or greases.
Claim 14
Dependent Claim
14 words
A method in accordance with claim 10, wherein said contaminants include oils and PCB's.
Claim 15
Dependent Claim
29 words
A method in accordance with claim 10, wherein the aqueous composition further includes low molecular weight water soluble contaminants, said soluble contaminants being primarily separated at said second column.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-05-13 | 1988-11-12 | 1989-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-13 | 1992-11-12 | 1993-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-13 | 1996-11-12 | 1997-05-14 | $7700.00 | Window Closed / Lapsed |