US5039415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Decontamination of hydrocarbon contaminated soil
Assignee: Individual
•
Filing: 1990-04-23
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Granted: 1991-08-13
•
Expires: 2010-04-23
Abstract
Abstract The method of treating hydrocarbon contaminated soil that includes forming the soil into a flowing particulate stream; forming an aqueous liquid mixture of water and treating substance that reacts with hydrocarbon to form CO 2 and water; dispersing the liquid mixture into the particulate soil stream to wet the particulate; allowing the substance to react with the wetted soil particulate to thereby form CO 2 and water, whereby the resultant soil is beneficially treated.
Inventors
- 👤 Alvin J. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:19
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/34; B; B09; B09C; B09C1/00; B09C1/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
174 words
The method of treating hydrocarbon contaminated soil that includes: a) forming the soil into a flowing particulate stream, b) forming an aqueous liquid mixture of water and treating substance that reacts with hydrocarbon to form CO 2 and water, c) dispersing said liquid mixture into the particulate soil stream to wet the particulate, d) allowing said substance to react with the wetted soil particulate to thereby form CO 2 and water, thereby the resultant soil is beneficially treated, e) said stream being freely projected to dwell at a level and then fall, and said dispersing includes spraying the liquid mixture into the projected stream at said dwell, f) said substance consisting of natural bacteria, and at a concentration level in the mixture of between 100 to 3,000 PPM of bacteria to water, g) said soil forming step including impacting the soil to reduce it to particles less than about 3/8 inches in cross dimension, h) and including forming the wetting particulate into a first layer on a surface to allow said substance to react.
Claim 2
Independent Claim
174 words
The method of treating hydrocarbon contaminated soil that includes: a) forming the soil into a flowing particulate stream, b) forming an aqueous liquid mixture of water and treating substance that reacts with hydrocarbon to form CO 2 and water, c) dispersing said liquid mixture into the particulate soil stream to wet the particulate, d) allowing said substance to react with the wetted soil particulate to thereby form CO 2 and water, thereby the resultant soil is beneficially treated, e) said stream being freely projected to dwell at a level and then fall, and said dispersing includes spraying the liquid mixture into the projected stream at said dwell, f) said substance consisting of natural bacteria, and at a concentration level in the mixture of between 100 to 3,000 PPM of bacteria to water, g) said soil forming step including impacting the soil to reduce it to particles less than about 3/8 inches in cross dimension, h) and including forming the wetting particulate into a first layer on a surface to allow said substance to react.
Claim 3
Dependent Claim
31 words
The method of claim 1 wherein said soil originates underground, where it has been hydrocarbon contaminated in situ, including removing the in situ soil for subjecting it to said forming step.
Claim 4
Dependent Claim
13 words
The method of claim 1 including agitating the soil particles in said layer.
Claim 5
Dependent Claim
25 words
The method of claim 1 including providing a moving conveyor surface, and supporting the soil particles on said conveyor surface to be projected to dwell.
Claim 6
Dependent Claim
24 words
The method of claim 4 including discharging the wetted soil particles off the conveyor and into the air to aerate and fall, for collection.
Claim 7
Dependent Claim
37 words
The method of claim 1 wherein the bacteria are selected from the group consisting of achromobacter arthrobacter aspergillus bacillus candida cladosporium corynebacterium myrothecium nocardia punicillium phialophora pseudomonas rhodothorula streptomyces trichoderma a blend of anaerobic and facultative organisms.
Claim 8
Dependent Claim
36 words
The method of claim 1 wherein, after several hours, said first layer is mixed to form a stream of particulate, and the steps of sub-paragraph e) of claim 1 are repeated to form a second layer.
Claim 9
Dependent Claim
40 words
The method of claim 7 wherein after several hours the second layer is mixed to form a stream of particulate, and the steps of sub-paragraph e) of claim 1 are repeated using the second layer to form a third layer.
Claim 10
Independent Claim
165 words
The method of treating hydrocarbon contaminated soil that includes: a) forming the soil into a flowing particulate stream; b) forming an aqueous liquid mixture of water and treating substance that reacts with hydrocarbon to form CO 2 and water, c) dispersing said liquid mixture into the particulate soil stream to wet the particulate, d) allowing said substance to react with the wetted soil particulate to thereby form CO 2 and water, whereby the resultant soil is beneficially treated, e) said stream being freely projected to fall, and said dispersing includes spraying the liquid mixture into the projected stream, f) said substance consisting of natural bacteria, and at a concentration level in the mixture of between 100 to 3,000 PPM of bacteria to water, g) said soil forming step including impacting the soil to reduce it to particles less than about 3/8 inches in cross dimension, h) and including forming the wetting particulate into a first layer on a surface to allow said substance to react.
Claim 11
Independent Claim
165 words
The method of treating hydrocarbon contaminated soil that includes: a) forming the soil into a flowing particulate stream; b) forming an aqueous liquid mixture of water and treating substance that reacts with hydrocarbon to form CO 2 and water, c) dispersing said liquid mixture into the particulate soil stream to wet the particulate, d) allowing said substance to react with the wetted soil particulate to thereby form CO 2 and water, whereby the resultant soil is beneficially treated, e) said stream being freely projected to fall, and said dispersing includes spraying the liquid mixture into the projected stream, f) said substance consisting of natural bacteria, and at a concentration level in the mixture of between 100 to 3,000 PPM of bacteria to water, g) said soil forming step including impacting the soil to reduce it to particles less than about 3/8 inches in cross dimension, h) and including forming the wetting particulate into a first layer on a surface to allow said substance to react.
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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) | 1994-08-12 | 1995-02-11 | 1995-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-12 | 1999-02-11 | 1999-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-12 | 2003-02-11 | 2003-08-13 | $7700.00 | Window Closed / Lapsed |