US4494975A
Expired / Lapsed
US
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Composing compositions
Assignee: Labofina SA
•
Filing: 1982-12-02
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Granted: 1985-01-22
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Expires: 2002-12-02
Abstract
Abstract A process is disclosed for producing compost and composting compositions having a high nitrogen content and being particularly advantageous for use as fertilizers, said process utilizing petroleum sludge and an organic biomass which preferably contains wood industry residue and organic waste products.
Inventors
- 👤 Marcel F. L. P. De Boodt
- 👤 Omer F. Verdonck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:32
CPC Classifications
C; C05; C05F; C05F3/00; C05F11/00; C05F17/00; C05F17/80; C05F7/00; C05F9/00; C05F9/04; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/20; Y02E; Y02E50/00; Y02E50/30; Y02P; Y02P20/00; Y02P20/141; Y02P20/145; Y02W; Y02W30/00; Y02W30/40
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
12 words
A composting composition comprising a mixture of biomass and a petroleum sludge.
Claim 2
Dependent Claim
12 words
A composting composition comprising a mixture of biomass and a petroleum sludge.
Claim 3
Dependent Claim
14 words
The composting composition of claim 1 wherein said biomass comprises wood industry residue particles.
Claim 4
Dependent Claim
18 words
The composting composition of claim 1 wherein said biomass comprises wood industry residue particles and organic waste products.
Claim 5
Dependent Claim
37 words
The composting composition of claim 1, wherein said biomass comprises from about 75 to about 95 weight percent of said composition, and said petroleum sludge comprises from about 25 to about 5 weight percent of said composition.
Claim 6
Dependent Claim
29 words
The composting composition of claim 3 wherein said biomass comprises about 25 to about 65 weight percent wood residue and about 75 to about 35 weight percent organic waste.
Claim 7
Dependent Claim
57 words
The composting composition of claim 3 wherein said biomass comprises about 25 to about 65 weight percent wood residue, and about 75 to about 35 weight percent of an organic waste selected from the group consisting of municipal wastewater sludge, industrial wastewater sludge, animal manure, food industry waste, textile industry waste, and pulp and paper industry waste.
Claim 8
Dependent Claim
29 words
The composting composition of claim 3 comprising from about 95 to about 80 weight percent tree bark waste, and from about 5 to about 20 weight percent petroleum sludge.
Claim 9
Dependent Claim
40 words
The composting composition of claim 3 comprising from about 40 to about 47.5 weight percent tree bark waste, from about 40 to about 47.5 weight percent wastewater treatment sludge, and from about 20 to about 5 weight percent petroleum sludge.
Claim 10
Dependent Claim
27 words
The composting composition of claim 3 comprising about 45 weight percent tree bark waste, about 50 weight percent animal manure, and about 5 weight percent petroleum sludge.
Claim 11
Dependent Claim
16 words
A compost comprising an aerobic decomposition of a mixture of a biomass and a petroleum sludge.
Claim 12
Dependent Claim
16 words
A compost comprising an aerobic decomposition of a mixture of a biomass and a petroleum sludge.
Claim 13
Dependent Claim
21 words
The compost of claim 10 wherein at least a portion of said compost has been subjected to aerobic and anaerobic decomposition.
Claim 14
Dependent Claim
40 words
The compost of claim 10 wherein said biomass comprises wood industry residue and an organic waste selected from the group of petroleum sludge, municipal wastewater sludge, industrial wastewater sludge, animal manure, food industry waste, and paper and pulp industry waste.
Claim 15
Dependent Claim
24 words
A process for producing compost; said process comprising: adding to a biomass a petroleum sludge; and, decomposing said biomass-petroleum sludge mixture to form compost.
Claim 16
Dependent Claim
24 words
A process for producing compost; said process comprising: adding to a biomass a petroleum sludge; and, decomposing said biomass-petroleum sludge mixture to form compost.
Claim 17
Dependent Claim
12 words
The process of claim 13 wherein said decomposition step comprises anaerobic decomposition.
Claim 18
Dependent Claim
12 words
The process of claim 13 wherein said decomposition step comprises aerobic decomposition.
Claim 19
Dependent Claim
20 words
The process of claim 13 wherein said decomposition step further comprises the steps of anaerobic decomposition followed by aerobic decomposition.
Claim 20
Dependent Claim
21 words
The process of claim 14 further comprising the step of forming said biomass by mixing wastewater sludge with wood industry residue.
Claim 21
Dependent Claim
48 words
The process of claim 14 further comprising the step of forming said biomass from a mixture of wood industry residue and an organic waste material selected from the group consisting of municipal wastewater sludge, animal manure, food industry waste, textile industry waste, pulp waste, and paper industry waste.
Claim 22
Dependent Claim
37 words
The process of claim 14 further comprising the step of forming said composition from a mixture of from about 75 to about 95 weight percent biomass, and from about 25 to about 5 weight percent petroleum sludge.
Claim 23
Dependent Claim
30 words
The process of claim 19 wherein said biomass comprises from about 25 to about 65 weight percent wood residue and from about 75 to about 35 weight percent organic waste.
References Cited (Backward Citations)
US3933627A
Cited
US3939068A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-01-22 | 1988-07-23 | 1989-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-01-22 | 1992-07-23 | 1993-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-01-22 | 1996-07-23 | 1997-01-22 | $7700.00 | Window Closed / Lapsed |