WO2007056641A3 - In-situ treatment of in ground contamination - Google Patents
In-situ treatment of in ground contamination Download PDFInfo
- Publication number
- WO2007056641A3 WO2007056641A3 PCT/US2006/060425 US2006060425W WO2007056641A3 WO 2007056641 A3 WO2007056641 A3 WO 2007056641A3 US 2006060425 W US2006060425 W US 2006060425W WO 2007056641 A3 WO2007056641 A3 WO 2007056641A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- contamination
- ferrous sulfide
- residue
- underground
- treatment
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
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
- B09C1/002—Reclamation of contaminated soil involving in-situ ground water treatment
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
In systems and methods for treatment of underground contamination, ferrous sulfide is provided as a substantially insoluble material in an underground formation. The ferrous sulfide accordingly may remain substantially in place, even over long periods of time, regardless of underground water movement or diffusion. As a result, the ferrous sulfide may act continuously to chemically reduce and remove contamination. When used for treatment of chromium ore processing residue contamination, the ferrous sulfide may remain in the pores of the soil or residue. As hexavalent chromium diffuses from the soil or residue, it is reduced by the ferrous sulfide. The ferrous sulfide may be injected as a liquid into the underground formation, and then change to a more solid form. Chlorinated solvent contamination, dissolved chromium from other than COPR contamination, and other dissolved metals may also be treated.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US73251105P | 2005-11-02 | 2005-11-02 | |
| US60/732,511 | 2005-11-02 | ||
| US11/361,325 US20070098502A1 (en) | 2005-11-02 | 2006-02-24 | In-situ treatment of in ground contamination |
| US11/361,325 | 2006-02-24 | ||
| US11/278,009 | 2006-03-30 | ||
| US11/278,009 US20070098501A1 (en) | 2005-11-02 | 2006-03-30 | In-situ treatment of in ground contamination |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2007056641A2 WO2007056641A2 (en) | 2007-05-18 |
| WO2007056641A3 true WO2007056641A3 (en) | 2008-01-17 |
Family
ID=38024032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US2006/060425 Ceased WO2007056641A2 (en) | 2005-11-02 | 2006-11-01 | In-situ treatment of in ground contamination |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2007056641A2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113979527A (en) * | 2021-10-26 | 2022-01-28 | 中国科学院南京土壤研究所 | A method for simultaneous and efficient removal of composite pollution of hexavalent chromium and trichloroethylene |
| CN117772292A (en) * | 2023-12-22 | 2024-03-29 | 哈尔滨学院 | Preparation method and application of FeS/MIL-125 photocatalyst |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5447639A (en) * | 1994-10-05 | 1995-09-05 | General Electric Company | Method for destruction of chlorinated hydrocarbons in aqueous environments |
| US6955501B2 (en) * | 2001-09-06 | 2005-10-18 | Gannett Fleming, Inc. | In-situ process for detoxifying hexavalent chromium in soil and groundwater |
-
2006
- 2006-11-01 WO PCT/US2006/060425 patent/WO2007056641A2/en not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5447639A (en) * | 1994-10-05 | 1995-09-05 | General Electric Company | Method for destruction of chlorinated hydrocarbons in aqueous environments |
| US6955501B2 (en) * | 2001-09-06 | 2005-10-18 | Gannett Fleming, Inc. | In-situ process for detoxifying hexavalent chromium in soil and groundwater |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2007056641A2 (en) | 2007-05-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
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