WO2011044885A3 - Method for purifying acidic water in-situ, suppressing continuing pollutant mobilizations, and immobilizing metals, in particular heavy metals, arsenic, natural radionuclides, and free hydrogen ions - Google Patents
Method for purifying acidic water in-situ, suppressing continuing pollutant mobilizations, and immobilizing metals, in particular heavy metals, arsenic, natural radionuclides, and free hydrogen ions Download PDFInfo
- Publication number
- WO2011044885A3 WO2011044885A3 PCT/DE2010/001199 DE2010001199W WO2011044885A3 WO 2011044885 A3 WO2011044885 A3 WO 2011044885A3 DE 2010001199 W DE2010001199 W DE 2010001199W WO 2011044885 A3 WO2011044885 A3 WO 2011044885A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- situ
- mobilizations
- continuing
- metals
- immobilizing
- Prior art date
Links
- 238000011065 in-situ storage Methods 0.000 title abstract 5
- 239000003344 environmental pollutant Substances 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 4
- 231100000719 pollutant Toxicity 0.000 title abstract 4
- 230000003100 immobilizing effect Effects 0.000 title abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract 3
- 230000002378 acidificating effect Effects 0.000 title abstract 2
- 229910052785 arsenic Inorganic materials 0.000 title abstract 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 title abstract 2
- 229910001385 heavy metal Inorganic materials 0.000 title abstract 2
- 229910052739 hydrogen Inorganic materials 0.000 title abstract 2
- 239000001257 hydrogen Substances 0.000 title abstract 2
- -1 hydrogen ions Chemical class 0.000 title abstract 2
- 229910052751 metal Inorganic materials 0.000 title abstract 2
- 239000002184 metal Substances 0.000 title abstract 2
- 150000002739 metals Chemical class 0.000 title abstract 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- 239000003673 groundwater Substances 0.000 abstract 3
- 238000005202 decontamination Methods 0.000 abstract 2
- 230000003588 decontaminative effect Effects 0.000 abstract 2
- 230000007613 environmental effect Effects 0.000 abstract 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 238000002347 injection Methods 0.000 abstract 1
- 238000010169 landfilling Methods 0.000 abstract 1
- 230000007774 longterm Effects 0.000 abstract 1
- 238000005065 mining Methods 0.000 abstract 1
- 230000007935 neutral effect Effects 0.000 abstract 1
- 230000001737 promoting effect Effects 0.000 abstract 1
- 229920006395 saturated elastomer Polymers 0.000 abstract 1
- 235000010265 sodium sulphite Nutrition 0.000 abstract 1
- 238000011282 treatment Methods 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a method for purifying acidic water in-situ, suppressing continuing pollutant mobilizations, and immobilizing metals, in particular heavy metals, arsenic, natural radionuclides, and free hydrogen ions by means of time-controlled and/or spatially controlled injections into contaminated water-saturated underground areas and zones, preferably into aquifers, and into contaminated groundwater, wherein a reactive aqueous solution of sodium hydroxide and/or sodium sulfite and mixing water is introduced in a metered and targeted manner in order to treat and decontaminate said areas and zones and the groundwater in-situ. By means of the described method, considerable environmental, technical/technological, and economic advantages over known methods are achieved. Said advantages comprise performing targeted and low-cost in-situ treatments and in-situ decontaminations of the pollution centers, immobilizing already mobilized pollutants in contaminated groundwater, actively developing the hydro- and geochemical environmental conditions toward pre-mining conditions such that the continuing mobilizations of pollutants are suppressed by means of raising the pH and reducing the redox potential, promoting by means of the chemically induced changes of the hydro- and geochemical environment toward neutral, intermediate conditions of the microbiologically catalyzed sulfate reduction, limiting the duration of or avoiding longterm, high-cost conventional decontamination measures, and eliminating the need for disposal and landfilling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112010004060T DE112010004060A5 (en) | 2009-10-16 | 2010-10-15 | METHOD FOR IN-SITU CLEANING OF ACID WATERS, SUPPRESSION OF CONTINUOUS POLLUTION MOBILIZATION AND IMMOBILIZATION OF METALS, IN PARTICULAR HEAVY METALS, ARSEN, NATURAL RADIONUCLIDES AND FREE HYDROGENOUS FUELS |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009049805.2 | 2009-10-16 | ||
| DE200910049805 DE102009049805A1 (en) | 2009-10-16 | 2009-10-16 | Process for the in situ purification of acidic waters, suppression of ongoing pollutant mobilizations and immobilization of metals, in particular of heavy metals, arsenic, natural radionuclides and free hydrogen ions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2011044885A2 WO2011044885A2 (en) | 2011-04-21 |
| WO2011044885A3 true WO2011044885A3 (en) | 2011-07-07 |
Family
ID=43759732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2010/001199 WO2011044885A2 (en) | 2009-10-16 | 2010-10-15 | Method for purifying acidic water in-situ, suppressing continuing pollutant mobilizations, and immobilizing metals, in particular heavy metals, arsenic, natural radionuclides, and free hydrogen ions |
Country Status (2)
| Country | Link |
|---|---|
| DE (2) | DE102009049805A1 (en) |
| WO (1) | WO2011044885A2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112034096B (en) * | 2020-07-25 | 2024-03-12 | 西安科技大学 | Detection device and method for migration of ionic pollutants in pressure-bearing state of filling paste |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0409140A1 (en) * | 1989-07-17 | 1991-01-23 | Coltec Industries Inc | Method for removing hexavalent chromium from water |
| US5397478A (en) * | 1993-08-13 | 1995-03-14 | Sevenson Environmental Services, Inc. | Fixation and stabilization of chromium in contaminated materials |
| US20030185630A1 (en) * | 2001-12-05 | 2003-10-02 | Price Kenneth S. | Hazardous waste stabilization methods, products and testing procedures |
| US20060081811A1 (en) * | 2004-10-19 | 2006-04-20 | Toda Kogyo Corporation | Iron composite particles for purifying soil or ground water, purifying agent containing the iron composite particles, and method for purifying soil or ground water |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6949197B2 (en) * | 2003-06-06 | 2005-09-27 | Rmt, Inc. | Situ neutralization of subsurface acidic pore water |
| AU2004314102B2 (en) * | 2003-12-19 | 2009-12-24 | Craig M. Bethke | In situ treatment process to remove metal contamination from groundwater |
-
2009
- 2009-10-16 DE DE200910049805 patent/DE102009049805A1/en not_active Withdrawn
-
2010
- 2010-10-15 DE DE112010004060T patent/DE112010004060A5/en not_active Ceased
- 2010-10-15 WO PCT/DE2010/001199 patent/WO2011044885A2/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0409140A1 (en) * | 1989-07-17 | 1991-01-23 | Coltec Industries Inc | Method for removing hexavalent chromium from water |
| US5397478A (en) * | 1993-08-13 | 1995-03-14 | Sevenson Environmental Services, Inc. | Fixation and stabilization of chromium in contaminated materials |
| US20030185630A1 (en) * | 2001-12-05 | 2003-10-02 | Price Kenneth S. | Hazardous waste stabilization methods, products and testing procedures |
| US20060081811A1 (en) * | 2004-10-19 | 2006-04-20 | Toda Kogyo Corporation | Iron composite particles for purifying soil or ground water, purifying agent containing the iron composite particles, and method for purifying soil or ground water |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102009049805A1 (en) | 2011-04-28 |
| DE112010004060A5 (en) | 2012-12-27 |
| WO2011044885A2 (en) | 2011-04-21 |
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