US4514307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of stabilizing organic waste
Assignee: CONVERSION SYSTEMS INC A CORP OF
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Filing: 1983-07-26
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Granted: 1985-04-30
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Expires: 2003-07-26
Abstract
Abstract Method for disposing of (or converting to a construction material) physically unstable wastes comprised of non-biologic, organic, water insoluble compounds, usually dispersed in water, by incorporation thereof in a lime-fly ash water mixture which hardens under atmospheric conditions to form an environmentally acceptable, impermeable, load-bearing material.
Inventors
- 👤 Raymond Chestnut
- 👤 John J. Colussi
- 👤 Donald J. Frost
- 👤 William E. Keen, Jr.
- 👤 Margaret C. Raduta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:18
CPC Classifications
A; A62; A62D; A62D3/00; A62D3/30; A62D3/33; B; B09; B09B; B09B3/00; B09B3/20; B09B3/25; C; C04; C04B; C04B18/00; C04B18/04; C04B18/18; C04B28/00; C04B28/18; A62D2101/00; A62D2101/02; A62D2101/04; A62D2101/20; C04B2111/00; C04B2111/00474; C04B2111/00767; C04B2111/00784; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/91; Y10; Y10S; Y10S106/00; Y10S106/01; Y10S210/00; Y10S210/902; Y10S210/908
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
154 words
A method of disposing of a physically unstable, water-containing, non-biologic organic waste material, said waste material being comprised of at least 20% by weight on a wet weight basis non-biologic, water insoluble, organic compounds said method consisting essentially of mixing said waste material with cementitious reactants in the presence of water, said cementitious reactants consisting essentially of lime and fly ash, to form a compactible mixture in which the relative proportions of said waste material, lime fly ash, and water are sufficient to permit said lime and fly ash to react at atmospheric conditions to form a cementitious matrix in which the nonaqueous portion of said waste material is encapsulated and permitting said mixture to react under atmospheric conditions to form a relatively impermeable, load-bearing material, wherein said mixture comprises at least 0.5% (by weight on a dry basis) CaO equivalents, and at least 30% (by weight on a wet weight basis) fly ash.
Claim 2
Independent Claim
154 words
A method of disposing of a physically unstable, water-containing, non-biologic organic waste material, said waste material being comprised of at least 20% by weight on a wet weight basis non-biologic, water insoluble, organic compounds said method consisting essentially of mixing said waste material with cementitious reactants in the presence of water, said cementitious reactants consisting essentially of lime and fly ash, to form a compactible mixture in which the relative proportions of said waste material, lime fly ash, and water are sufficient to permit said lime and fly ash to react at atmospheric conditions to form a cementitious matrix in which the nonaqueous portion of said waste material is encapsulated and permitting said mixture to react under atmospheric conditions to form a relatively impermeable, load-bearing material, wherein said mixture comprises at least 0.5% (by weight on a dry basis) CaO equivalents, and at least 30% (by weight on a wet weight basis) fly ash.
Claim 3
Dependent Claim
47 words
A method, as recited in claim 1, wherein said mixture at least 35% (by weight on a wet weight basis) fly ash, and said method further includes depositing said mixture over an area to be covered thereby and compacting it prior to permitting said mixture to react.
Claim 4
Dependent Claim
13 words
A method, as recited in claim 2, wherein said waste is coking tar.
Claim 5
Dependent Claim
14 words
A method as recited in claim 2, wherein said waste is API separator sludge.
Claim 6
Dependent Claim
15 words
A method, as recited in claim 2, wherein said waste is a pesticide residue emulsion.
Claim 7
Dependent Claim
16 words
A method, as recited in claim 2, wherein said waste is a decommissioned nerve gas emulsion.
Claim 8
Dependent Claim
17 words
A method, as recited in claim 2, wherein said waste is an acrylic manufacturing by-product waste emulsion.
Claim 9
Dependent Claim
17 words
A method, as recited in claim 2, wherein said waste is a latex manufacturing by-product waste emulsion.
Claim 10
Dependent Claim
40 words
A method, as recited in claim 2, wherein said waste includes 20-50% water insoluble, non-biologic organic compounds, and said mixture includes 30-60% fly ash (on a wet weight basis), 3-5% CaO equivalents (on a dry weight basis), and 10-30% water.
Claim 11
Independent Claim
158 words
A method of converting a non-biological, organic waste material to a substantially impermeable, load-bearing construction material, said method consisting essentially of selecting a non-biologic, organic waste material which is substantially free of water-soluble organic compounds and comprised of at least 20% by weight (on a wet weight basis) non-biologic, water insoluble organic compounds, and combining said waste with cementitious reactants consisting essentially of lime and fly ash, in the presence of water, to form a compactible mixture in which the relative proportions of said waste material, lime, fly ash, and water are sufficient to permit said lime and fly ash to react to form a cementitious matrix in which said waste materials are encapsulated, and permitting said mixture to react under atmospheric conditions to form said impermeable, load-bearing construction material, wherein said mixture comprises at least 0.5% (by weight on a dry basis) CaO equivalents, and at least 30% (by weight on a wet weight basis) fly ash.
Claim 12
Independent Claim
158 words
A method of converting a non-biological, organic waste material to a substantially impermeable, load-bearing construction material, said method consisting essentially of selecting a non-biologic, organic waste material which is substantially free of water-soluble organic compounds and comprised of at least 20% by weight (on a wet weight basis) non-biologic, water insoluble organic compounds, and combining said waste with cementitious reactants consisting essentially of lime and fly ash, in the presence of water, to form a compactible mixture in which the relative proportions of said waste material, lime, fly ash, and water are sufficient to permit said lime and fly ash to react to form a cementitious matrix in which said waste materials are encapsulated, and permitting said mixture to react under atmospheric conditions to form said impermeable, load-bearing construction material, wherein said mixture comprises at least 0.5% (by weight on a dry basis) CaO equivalents, and at least 30% (by weight on a wet weight basis) fly ash.
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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) | 1988-04-29 | 1988-10-29 | 1989-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-29 | 1992-10-29 | 1993-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-29 | 1996-10-29 | 1997-04-30 | $7700.00 | Window Closed / Lapsed |