[특허]Dynamic underground stripping: steam and electric heating for in situ decontamination of soils and groundwater

Dynamic underground stripping: steam and electric heating for in situ decontamination of soils and groundwater 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E02D-003/11
출원번호	US-0058900 (1993-05-04)
발명자 / 주소	Daily William D. (Livermore CA) Ramirez Abelardo L. (Pleasanton CA) Newmark Robin L. (Pleasanton CA) Udell Kent (Berkeley CA) Buetnner Harley M. (Livermore CA) Aines Roger D. (Livermore CA)
출원인 / 주소	The Regents of The University of California (Oakland CA 02)
인용정보	피인용 횟수 : 27 인용 특허 : 0

초록 ▼

A dynamic underground stripping process removes localized underground volatile organic compounds from heterogeneous soils and rock in a relatively short time. This method uses steam injection and electrical resistance heating to heat the contaminated underground area to increase the vapor pressure of the contaminants, thus speeding the process of contaminant removal and making the removal more complete. The injected steam passes through the more permeable sediments, distilling the organic contaminants, which are pumped to the surface. Large electrical currents are also applied to the contaminated area, which heat the impermeable subsurface layers that the steam has not penetrated. The condensed and vaporized contaminants are withdrawn by liquid pumping and vacuum extraction. The steam injection and electrical heating steps are repeated as necessary. Geophysical imaging methods can be used to map the boundary between the hot, dry, contamination-free underground zone and the cool, damp surrounding areas to help monitor the dynamic stripping process.

대표청구항 ▼

A method for removing volatile subsurface contaminants from one or more layers of the earth\s subsurface, comprising: (a) constructing an injection well system, comprising one or more injection wells proximate to or within an area of subsurface contaminants, wherein at least one injection well comprises means for injecting steam into the subsurface; (b) constructing an electrical heating system for applying electric currents to the subsurface layers; (c) constructing at least one extraction well proximate to or within the contaminated area and spaced apart from the injection wells, wherein the extraction well comprises means for removing liquids, vapors, and gases from the subsurface; (d) injecting steam and applying electric currents into the subsurface through the injection wells and the electrical heating system, whereby the steam and electric currents heat the subsurface and vaporize the contaminants, which are drawn through the subsurface to the extraction well; and (e) extracting the contaminants from the extraction well by applying subatmospheric pressure to remove gases and vapors and by pumping the liquids concurrent with the steam injection and application of electric currents.

이 특허를 인용한 특허 (27)

George A. Ivey CA, Air, soil and ground water remediation compositions and methods.
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Ivey George A.,CAX, Air, soil and ground water remediation compositions and methods.
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Diehl, Dirk; Huber, Norbert; Wacker, Bernd; Weigel, Jan, Apparatus for in-situ extraction of bitumen or very heavy oil.
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Ramachandran, Ajit; Sliger, Keith; Plasek, Ronald A., Compressor head, internal discriminator, external discriminator, manifold design for refrigerant recovery apparatus.
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Ramachandran, Ajit; Sliger, Keith; Plasek, Ronald A., Compressor head, internal discriminator, external discriminator, manifold design for refrigerant recovery apparatus and vacuum sensor.
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Ramachandran,Ajit; Sliger,Keith; Plasek,Ronald A., Compressor head, internal discriminator, external discriminator, manifold design for refrigerant recovery apparatus and vacuum sensor.
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Ramachandran,Ajit; Sliger,Keith; Plasek,Ronald A., Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatus.
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Ramachandran,Ajit; Sliger,Keith; Plasek,Ronald A., Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatus.
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Miller Cass T., Density-enhanced remediation of dense non-aqueous phase liquid contamination of subsurface environments.
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Miller Cass T., Density-enhanced remediation of non-aqueous phase liquid contamination of subsurface environments.
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Ankeny, Mark D.; Kelsey, James A., Design, monitoring and control of soil carburetors for degradation of volatile compounds.
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Geisel,Donald J., Device, system, and method for remediation of contaminated soil.
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Haemers, Jan, Devices and methods for soil remediation.
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McGee, Bruce C. W., Electro-thermal dynamic stripping process.
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Beyke,Gregory L.; Dodson,Michael E.; Powell,Thomas D.; Wolf,Jerry L., Electrode heating with remediation agent.
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Lundy, William L., In-situ subsurface decontamination of sodic soil, clay and ground water.
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Hocking Grant, Injection of mixtures into subterranean formations.
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Diehl, Dirk; Huber, Norbert, Method and device for in-situ conveying of bitumen or very heavy oil.
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Sheppard Douglas M. ; Overduin Cornelis L. W., Method for treating vapors and liquids recovered from a subsurface remediation process.
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Stephen Richard Nelson ; Gregory Robert Feegle, Methods of extracting liquid hydrocardon contaminants from underground zones.
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Kansa Edward J. (Livermore CA) Wijesinghe Ananda M. (Tracy CA) Viani Brian E. (Oakland CA), Nontoxic chemical process for in situ permeability enhancement and accelerated decontamination of fine-grain subsurface.
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Vinegar Harold J. ; de Rouffignac Eric, Remediation method.
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de Rouffignac Eric ; Vinegar Harold J., Remediation method.
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Lundy, William L., Remediation of contaminants from in-situ and ex-situ media.
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Sheldon Richard Blair ; Iben Icko Eric Timothy ; Edelstein William Alan, Thermal desorption and destruction of dense non-aqueous phase liquid in fractured bedrock.
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Satchwell, Robert Merton; Facey, Roderick Michael, Thermal remediation process.
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Aines Roger D. ; Newmark Robin L. ; Knauss Kevin G., Thermal treatment wall.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Dynamic underground stripping: steam and electric heating for in situ decontamination of soils and groundwater 원문보기

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Dynamic underground stripping: steam and electric heating for in situ decontamination of soils and groundwater 원문보기

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