WO1999004914A3 - Method and apparatus for removing contaminants from soil - Google Patents

Method and apparatus for removing contaminants from soil Download PDF

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Publication number
WO1999004914A3
WO1999004914A3 PCT/US1998/014747 US9814747W WO9904914A3 WO 1999004914 A3 WO1999004914 A3 WO 1999004914A3 US 9814747 W US9814747 W US 9814747W WO 9904914 A3 WO9904914 A3 WO 9904914A3
Authority
WO
WIPO (PCT)
Prior art keywords
soil
water
contaminants
condensate
oxidizing agent
Prior art date
Application number
PCT/US1998/014747
Other languages
French (fr)
Other versions
WO1999004914A2 (en
Inventor
Louis F Centofanti
Maria Luisa Repiso Jones
Tommy Yarbrough
Original Assignee
Perma Fix Environmental Servic
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Perma Fix Environmental Servic filed Critical Perma Fix Environmental Servic
Publication of WO1999004914A2 publication Critical patent/WO1999004914A2/en
Publication of WO1999004914A3 publication Critical patent/WO1999004914A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09C—RECLAMATION OF CONTAMINATED SOIL
    • B09C1/00—Reclamation of contaminated soil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09C—RECLAMATION OF CONTAMINATED SOIL
    • B09C1/00—Reclamation of contaminated soil
    • B09C1/08—Reclamation of contaminated soil chemically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09C—RECLAMATION OF CONTAMINATED SOIL
    • B09C1/00—Reclamation of contaminated soil
    • B09C1/08—Reclamation of contaminated soil chemically
    • B09C1/085—Reclamation of contaminated soil chemically electrochemically, e.g. by electrokinetics

Abstract

The present invention comprises contacting contaminated soil with water, then heating the soil/water mixture until the water vaporizes. The water vapor carries with it some of the contaminants that are present in the soil. The water vapor with the contaminants carried with it is transferred to a condenser wherein the vapor condenses. The condensate is collected in a collection container. In most cases, the contaminants will be organics that are lighter and immiscible in water. The condensate will normally separate into two or more phases. The organic phase can then be easily removed and disposed of. Optionally, the remaining decontaminated soil may be further treated by adding an oxidizing agent to the soil. The oxidizing agent may be added directly to the soil, or may be generated in situ and then added to the soil.
PCT/US1998/014747 1997-07-23 1998-07-21 Method and apparatus for removing contaminants from soil WO1999004914A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US5346197P 1997-07-23 1997-07-23
US60/053,461 1997-07-23

Publications (2)

Publication Number Publication Date
WO1999004914A2 WO1999004914A2 (en) 1999-02-04
WO1999004914A3 true WO1999004914A3 (en) 1999-04-08

Family

ID=21984413

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/014747 WO1999004914A2 (en) 1997-07-23 1998-07-21 Method and apparatus for removing contaminants from soil

Country Status (1)

Country Link
WO (1) WO1999004914A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100847058B1 (en) 2007-12-10 2008-07-18 하상안 Purifying system for contaminated ground

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5149444A (en) * 1990-04-30 1992-09-22 Sdtx Technologies, Inc. Process for the decontamination of soils, sediments, and sludges
US5152844A (en) * 1987-10-13 1992-10-06 Michael Wilwerding Degradation of polychlorinated biphenyls
US5415777A (en) * 1993-11-23 1995-05-16 Sunbelt Ventures, Inc. Process for the decontamination of soils contaminated by petroleum products
US5461186A (en) * 1993-07-30 1995-10-24 Electric Power Research Institute, Inc. Process for treating contaminated soil
US5518621A (en) * 1993-09-03 1996-05-21 Hanover Research Corporation Process for drying and solvent extraction of contaminated water-wet soils, sediments, and sludges
US5534158A (en) * 1993-12-21 1996-07-09 Envirotech Consulting Inc. Method for clean-up of soils or refuse materials contaminated with highly viscous coal or petroleum derived tars/oils
US5615974A (en) * 1992-01-07 1997-04-01 Terra Vac, Inc. Process for soil decontamination by oxidation and vacuum extraction

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5152844A (en) * 1987-10-13 1992-10-06 Michael Wilwerding Degradation of polychlorinated biphenyls
US5149444A (en) * 1990-04-30 1992-09-22 Sdtx Technologies, Inc. Process for the decontamination of soils, sediments, and sludges
US5615974A (en) * 1992-01-07 1997-04-01 Terra Vac, Inc. Process for soil decontamination by oxidation and vacuum extraction
US5461186A (en) * 1993-07-30 1995-10-24 Electric Power Research Institute, Inc. Process for treating contaminated soil
US5518621A (en) * 1993-09-03 1996-05-21 Hanover Research Corporation Process for drying and solvent extraction of contaminated water-wet soils, sediments, and sludges
US5415777A (en) * 1993-11-23 1995-05-16 Sunbelt Ventures, Inc. Process for the decontamination of soils contaminated by petroleum products
US5534158A (en) * 1993-12-21 1996-07-09 Envirotech Consulting Inc. Method for clean-up of soils or refuse materials contaminated with highly viscous coal or petroleum derived tars/oils

Also Published As

Publication number Publication date
WO1999004914A2 (en) 1999-02-04

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