1
Masood S Hosseini: In-situ thermal desorption of heavy hydrocarbons in vadose zone. Southern California Gas Company, Lyon & Lyon, June 23, 1998: US05769569 (172 worldwide citation)

An in-situ thermal desorption system and process is utilized for mobilization and removal of nonvolatile and semi-volatile hydrocarbons from contaminated soil in the vadose zone. Persistent hydrocarbons are thermally desorbed by direct heating of the contaminated zone through combustion of fuel and ...


2
John R Schuring, David S Kosson, Conan D Fitzgerald, Sankar Venkatraman: Pneumatic fracturing and multicomponent injection enhancement of in situ bioremediation. New Jersey Institute of Technology, Klauber & Jackson, October 1, 1996: US05560737 (80 worldwide citation)

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 ...


3
Deran Hanesian, Angelo J Perna, John R Schuring, Hugo J Fernandez: Apparatus and method for in situ removal of contaminants using sonic energy. New Jersey Institute of Technology, Klauber & Jackson, November 16, 1999: US05984578 (75 worldwide citation)

In preferred embodiments, an apparatus and method for enhancing the in situ removal of at least one contaminant from a contaminated body, the body being provided with at least one interstice, by generating and focusing vibrations toward the interstice, thereby exciting the contaminant within the bod ...


4
Timothy M Rynne, John F Spadaro, Joe L Iovenitti, John P Dering, Donald G Hill: Phased array approach to retrieve gases, liquids, or solids from subaqueous geologic or man-made formations. Scientific Applications & Research Associates, John J Murphey, October 27, 1998: US05826653 (66 worldwide citation)

A method of enhancing the remediation of contaminated soils and ground water, production of oil and gas, and production of any solid, gas, and/or liquid from subsurface geologic and man-made formations including the steps of estimating the geometric boundaries of the region containing the material t ...


5
Michael Uthe: Subterranean antenna cooling system. Enhanced Energy, Fredrikson & Byron PA, November 3, 1998: US05829519 (64 worldwide citation)

The present invention provides a system for cooling antenna assemblies, such as subterranean RF antennas used to heat geological formations. The invention generally includes a radio frequency (RF) generator, a waveguide operatively connected to the RF generator and to the antenna, a supply of coolin ...


6
Barry C Beard, Jerry R Gips, Stewart Haynes Jr, Joseph F Long, Thomas A Harlan: Enhanced in situ hydrocarbon removal from soil and groundwater. Joseph F Long, December 17, 1996: US05584605 (63 worldwide citation)

The invention encompasses a process and equipment for an aggressive approach to remediation of specific hydrocarbon contaminated soil and groundwater using horizontal sparging pipes in or below the contamination with a matrix of vertical pipes that act to conduct sparger gas with associated hydrocar ...


7
Seth C Hunt, Theodore O Meiggs, Lawrence C Murdoch, William W Slack: Method and system for bioremediation of contaminated soil using inoculated support spheres. Foremost Solutions, Edwin H Crabtree, Ramon L Pizarro, Donald W Margolis, March 31, 1998: US05733067 (56 worldwide citation)

A method used for in situ remediation of contaminated subsurface ground and subsurface water using chemically or biologically reactive sheets. The reactive or active sheets contain one or more selected compounds capable of recovering, destroying, degrading and immobilizing contaminants in the soil o ...


8
Ronald J Vigneri: Method and system for remediation of groundwater contamination. Klauber & Jackson, May 28, 1996: US05520483 (50 worldwide citation)

A method for remediating a hydrocarbon-contaminated region of a subterranean body of groundwater to destroy or reduce the initial concentration levels of hydrocarbon contaminants. A plurality of mutually spaced wells are provided which intersect the groundwater region. A treating flow of acetic acid ...


9
Grant Hocking: Injection of mixtures into subterranean formations. Golder Sierra, Jones & Askew, August 31, 1999: US05944446 (49 worldwide citation)

This invention relates to an environmental engineering process for injecting a mixture into the ground to act as a containment barrier for fluids or gases or to act as in situ waste remediation process. The process involves pumping a mixture into the ground so that the mixture penetrates from the in ...


10
Philip B Simon, James Braithwaite: Soil vapor extraction system. Howard & Howard, October 14, 1997: US05676207 (45 worldwide citation)

A soil remediation system (10) for removing contaminants (11) from a contaminated area (12) located in the vadose zone (13) of the earth and comprising multiplicity of stratigraphic zones, contaminants and compositions (26, 28), is disclosed. The system (10) comprises a first circulator (32) for cir ...



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