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 Title: |
US5560737:
Pneumatic fracturing and multicomponent injection enhancement of in situ bioremediation
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Schuring, John R.; Blairstown, NJ
Kosson, David S.; Neshanic Station, NJ
Fitzgerald, Conan D.; Maplewood, NJ
Venkatraman, Sankar; Piscataway, NJ
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| Assignee: |
New Jersey Institute of Technology, Newark, NJ
other patents from NEW JERSEY INSTITUTE OF TECHNOLOGY (398680) (approx. 55)
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| Published / Filed: |
1996-10-01
/ 1995-08-15
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| Application Number: |
US1995000515463
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| IPC Code: |
Advanced:
B09C 1/00;
B09C 1/10;
E21B 43/26;
Core:
E21B 43/25;
more...
IPC-7:
B09C 1/08;
E21B 43/12;
E21B 43/26;
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| ECLA Code: |
B09C1/00; B09C1/10; E21B43/26;
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| U.S. Class: |
Current:
405/128.45;
166/053;
166/246;
166/308.1;
210/747;
405/128.5;
405/263;
435/262;
Original:
405/128;
166/053;
166/246;
166/308;
210/747;
405/258;
405/263;
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| Field of Search: |
405/128,130,258,263
166/053,177.5,246,250.15,308
210/611,747
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| Priority Number: |
| 1995-08-15 |
US1995000515463 |
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| Abstract: |
A method and apparatus are disclosed for reducing or eliminating non-naturally occurring, subsurface, liquid contaminants from one or more soil formations, which involves the steps of pneumatically fracturing the soil formation to produce a fracture network; simultaneously or subsequently inserting into said fracture network and throughout adjacent portions of the soil formation, a pressurized gas stream, and introducing into the pressurized gas stream a mixture of one or more liquid amendments, wherein said pressurized gas, in conjunction with said liquid amendments, has an oxygen or other electron acceptor content sufficient to promote the growth of aerobic or other microorganisms in said fracture network, and wherein the pressurized gas has a sufficiently high gas to liquid ratio to atomize the liquid amendments, whereby the amendments are distributed throughout the soil formation.
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| Attorney, Agent or Firm: |
Klauber & Jackson ;
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| Primary / Asst. Examiners: |
Suchfield, George A.;
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| INPADOC Legal Status: |
Show legal status actions
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| Family: |
None
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First Claim:
Show all 17 claims |
What is claimed is:
1. A method for reducing or eliminating non-naturally occurring subsurface, liquid contaminants from one or more soil formations, comprising:
- a) pneumatically fracturing the soil formation, comprising:
- i) inserting a tubular probe partially into the soil formation such that at least one orifice of a nozzle fluidly connected with the tubular probe is positioned at a predetermined height; and
- ii) supplying a pressurized gas into the tubular probe such that the pressurized gas travels through the at least one orifice into the soil to produce a fracture network in said soil formation; and
simultaneously with creation of said fracture network, or subsequently thereafter:
- b) inserting into said fracture network and thereby throughout adjacent portions of said soil formation, a pressurized gas stream, and introducing into said pressurized gas stream a mixture of one or more liquid amendments, and optionally water, wherein said pressurized gas, in conjunction with said liquid amendments and optionally water, has an oxygen or other electron acceptor content sufficient to promote the growth of aerobic or other microorganisms in said fracture network, and wherein said pressurized gas has a sufficiently high gas to liquid ratio to atomize said liquid amendments, whereby said amendments and optionally water are distributed throughout said fracture network and adjacent portions of said soil formation; and
- c) as necessary, repeating steps a) and b) on a sequential basis in order to treat additional portions of the soil formation(s), and on a periodic basis in order to replenish said liquid amendments and optionally oxygen or other electron acceptor to said fracture network and adjacent portions of said soil formation(s).
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| Background / Summary: |
Show background / summary
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| Drawing Descriptions: |
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| Description: |
Show description
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| Forward References: |
Show 51 U.S. patent(s) that reference this one
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| Foreign References: |
None
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| Other Abstract Info: |
CHEMABS 125(20)256283Y
CAN125(20)256283Y
DERABS C96-454435
DERC96-454435
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| Other References: |
R. L. Valentine et al. (1986) "Biotransformation", Vadose Zone Modelling of Organic Pollutants, eds. Stephen Hern et al., Lewis Publishers, Inc. Michigan, Chapter 9.
R. Wetzel et al. (1985) "Demonstration of In Situ Biological Degradation of Contaminated Ground Water and Soils", Sixth National Conference on Management of Uncontrolled Hazardous Waste Sites, Washington, D. C.
V. Jhaveri et al. (1985) "Bioreclammation of Ground and Ground Water by In Situ Biodegradation" Case History, Sixth National Conference on Management of Uncontrolled Hazardous Waste Sites, Washington, D. C.
P. Yaniga et al. (1986) "Aquifer Restoration Via Accelerated In Situ Biodegradation of Organic Contaminants", Seventh National Conference on Management of Uncontrolled Hazardous Waste Sites, Washington, D. C.
Evans et al. (1991) "Anaerobic Degradation of Toluene by a Denitrifying Bacterium", Appl. Env. Microb. 57(4):1139-1145.
(7 pages)
Cited by 2 patents
[ISI abstract]
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