WO2003095117B1 - In-situ generation of oxygen-releasing metal peroxides - Google Patents
In-situ generation of oxygen-releasing metal peroxidesInfo
- Publication number
- WO2003095117B1 WO2003095117B1 PCT/US2003/014171 US0314171W WO03095117B1 WO 2003095117 B1 WO2003095117 B1 WO 2003095117B1 US 0314171 W US0314171 W US 0314171W WO 03095117 B1 WO03095117 B1 WO 03095117B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- soil
- groundwater
- injecting
- contaminants
- solution
- Prior art date
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
- B09C1/10—Reclamation of contaminated soil microbiologically, biologically or by using enzymes
-
- 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
-
- 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
Abstract
A method is provided for the remediation of contaminants in soil and groundwater. Via the injection of an aqueous energetic oxidant solution containing free radicals, oxidative conditions can be created within or ahead of a contaminant plume. Some contaminants may be remediated directly by reaction with the free radicals. Additionally and more importantly, the free radicals create an oxidative condition whereby native or injected materials, especially metals, are converted to peroxides. These peroxides provide a long-term oxygen reservoir, releasing oxygen relatively slowly over time. The oxygen can enhance microbial metabolism to remediate contaminants, can react with contaminant metals either to form immobile precipitants or to mobilize other metals to permit remediation through leaching techniques. Various injection strategies for injecting the energetic oxidant solution are also disclosed.
Claims
1. A method for in-situ treatment of contaminants in groundwater or soil comprising the steps of: a) creating a solution containing energetic oxidants in the form of free radicals; b) injecting said solution into a subsurface area associated with said groundwater or soil in an amount sufficient forthe formation of oxygen releasing solids, said solids providing a long-term source of oxygen forthe in-situ treatment of said contaminants.
2. The method of claim 1 wherein the oxygen releasing solids are metal peroxides.
3. The method of claim 2 wherein said solution is an aqueous solution.
4. The method of claim 3 wherein the energetic oxidant solution is created before performing said injecting step.
5. The method of claim 3 wherein the energetic solution is created during the injection step.
6. The method of claim 1 wherein the step of creating said solution of energetic oxidants in the form of free radicals comprises creating a solution of a peroxide compound and a dissolved metal compound.
7. The method of claim 6 wherein the peroxide compound is hydrogen peroxide and the dissolved metal compound is ferrous sulfate.
8. The method of claim 1 including the steps of providing a metal solution which is suitable for injection into the soil or groundwater and, prior to step b) injecting said metal solution into the soil or groundwater.
29
9. A method for in-situ treatment of contaminants in groundwater or soil comprising the steps of: a) providing precursor reagents, the mixture of which will produce an energetic oxidant solution containing free radicals; b) mixing said precursor reagents; and c) injecting the mixed precursor reagents into the soil or groundwater to be treated in an amount sufficient to create free radical peroxide material in the soil or groundwater, the peroxidized material providing long-temn release of oxygen sufficient to treat said contaminants in-situ.
10. The method of claim 9 including, prior to injecting the mixed reagents into the soil, the step of injecting a metal solution into said soil or groundwater.
11. A method for in-situ treatment of contaminants in groundwater or soil comprising the steps of: a) providing precursor reagents, the mixture of which will produce an energetic oxidant solution containing free radicals; b) injecting the precursor reagents separately into the soil or groundwater to be treated in an amount sufficient to create free radical peroxide material in the soil or groundwater, the peroxidized material providing long-term release of oxygen sufficient to treat said contaminants in-situ.
12. The method of claim 11 wherein the injection step is performed by injecting the first of said reactants at a first site and the second reactant at a second
30 site which is spaced apart from the first site whereby a subsurface reaction zone is initiated between said sites.
13. The method of claim 11 including, before performing step b), performing the step of injecting a metal solution the soil and groundwater to be treated.
14. A method for in-situ treatment of contaminants in groundwater or soil comprising the steps of: a) providing precursor reagents, the mixture of which will produce an energetic oxidant solution containing free radicals; b) mixing said precursor reagents while injecting the mixed precursor reagents into the soil or groundwater to be treated in an amount sufficient to create free radical peroxide material in then soil or groundwater, said peroxidized material providing long-term release of oxygen sufficient to treat said contaminants in-situ.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002484644A CA2484644A1 (en) | 2002-05-10 | 2003-05-06 | In-situ generation of oxygen-releasing metal peroxides |
| AU2003228891A AU2003228891A1 (en) | 2002-05-10 | 2003-05-06 | In-situ generation of oxygen-releasing metal peroxides |
| US10/976,089 US7160471B2 (en) | 2003-05-06 | 2004-10-27 | In-situ generation of oxygen-releasing metal peroxides |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US79625302P | 2002-05-10 | 2002-05-10 | |
| US60/379,625 | 2002-05-10 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US10/976,089 Continuation US7160471B2 (en) | 2003-05-06 | 2004-10-27 | In-situ generation of oxygen-releasing metal peroxides |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| WO2003095117A2 WO2003095117A2 (en) | 2003-11-20 |
| WO2003095117A3 WO2003095117A3 (en) | 2004-04-01 |
| WO2003095117B1 true WO2003095117B1 (en) | 2004-05-06 |
| WO2003095117A8 WO2003095117A8 (en) | 2004-07-22 |
Family
ID=29420868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US2003/014171 WO2003095117A2 (en) | 2002-05-10 | 2003-05-06 | In-situ generation of oxygen-releasing metal peroxides |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2003095117A2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11319225B2 (en) | 2018-10-24 | 2022-05-03 | Savannah River Nuclear Solutions, Llc | Modular system and method for mercury speciation in a fluid sample |
| CN109959772B (en) * | 2019-03-13 | 2021-09-07 | 中国地质科学院水文地质环境地质研究所 | In-situ monitoring test device and method for soil leaching |
| CN113428943B (en) * | 2021-06-28 | 2022-09-23 | 上海交通大学 | Fenton-like conditioner in-situ injection method groundwater remediation process |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6206098B1 (en) * | 1997-11-14 | 2001-03-27 | Kent Cooper | In situ water and soil remediation method and system |
| US6019548A (en) * | 1998-05-05 | 2000-02-01 | United Technologies Corporation | Chemical oxidation of volatile organic compounds |
| US6623646B2 (en) * | 2000-05-16 | 2003-09-23 | James Daniel Bryant | In-situ chemical oxidation-reduction and precipitation of heavy metals in soils and groundwater |
| US6623211B2 (en) * | 2000-05-24 | 2003-09-23 | Rutgers University | Remediation of contaminates including low bioavailability hydrocarbons |
-
2003
- 2003-05-06 WO PCT/US2003/014171 patent/WO2003095117A2/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| WO2003095117A3 (en) | 2004-04-01 |
| WO2003095117A8 (en) | 2004-07-22 |
| WO2003095117A2 (en) | 2003-11-20 |
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