CA2374861A1 - Method for removing radium in water - Google Patents
Method for removing radium in water Download PDFInfo
- Publication number
- CA2374861A1 CA2374861A1 CA 2374861 CA2374861A CA2374861A1 CA 2374861 A1 CA2374861 A1 CA 2374861A1 CA 2374861 CA2374861 CA 2374861 CA 2374861 A CA2374861 A CA 2374861A CA 2374861 A1 CA2374861 A1 CA 2374861A1
- Authority
- CA
- Canada
- Prior art keywords
- water
- filter medium
- radium
- iron
- manganese
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract 6
- 229910052705 radium Inorganic materials 0.000 title abstract 4
- HCWPIIXVSYCSAN-UHFFFAOYSA-N radium atom Chemical compound [Ra] HCWPIIXVSYCSAN-UHFFFAOYSA-N 0.000 title abstract 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 6
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 abstract 4
- 229910052742 iron Inorganic materials 0.000 abstract 3
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 abstract 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 abstract 1
- 239000013078 crystal Substances 0.000 abstract 1
- 229910052748 manganese Inorganic materials 0.000 abstract 1
- 239000011572 manganese Substances 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 239000004576 sand Substances 0.000 abstract 1
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Removal Of Specific Substances (AREA)
- Water Treatment By Sorption (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
Water containing radium is contacted with a filter medium in which manganese oxide is adhered to surfaces of sand grains or a filter medium made of manganese dioxide .beta.-type crystal grains to selectively adsorb radium on the filter medium. When manganese is contained in water, radium can selectively be adsorbed over a long period of time while contacting water with a filter medium under oxidation conditions to adhere manganese oxide on the surface of the filter medium. Further, when iron is contained in water, it is preferable to previously remove iron by oxidizing iron in water in a pretreatment step.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001389244A JP3715570B2 (en) | 2001-12-21 | 2001-12-21 | Removal of radium in water |
| JP2001-389244 | 2001-12-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2374861A1 true CA2374861A1 (en) | 2003-06-21 |
| CA2374861C CA2374861C (en) | 2007-02-13 |
Family
ID=19188247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2374861 Expired - Fee Related CA2374861C (en) | 2001-12-21 | 2002-03-06 | Method for removing radium in water |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3715570B2 (en) |
| CA (1) | CA2374861C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015092798A1 (en) * | 2013-12-19 | 2015-06-25 | Mekorot Water Company, Ltd | Process, device and system for treatment of water |
| ES2564566A1 (en) * | 2014-09-22 | 2016-03-23 | Universidad De Extremadura | New filtration system based on the use of green manganese sand for the elimination of the radium contained in water (Machine-translation by Google Translate, not legally binding) |
| RU2813760C1 (en) * | 2019-10-10 | 2024-02-16 | Альфа Тау Медикал Лтд. | Wet method of obtaining sources for radiation therapy |
| US12290702B2 (en) | 2019-10-10 | 2025-05-06 | Alpha Tau Medical Ltd | Wet preparation of radiotherapy sources |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100667175B1 (en) | 2005-11-16 | 2007-01-12 | 재단법인서울대학교산학협력재단 | Radium Concentrated Column |
| US20130134098A1 (en) * | 2011-11-30 | 2013-05-30 | General Electric Company | Water treatment processes for norm removal |
| CN108046400A (en) * | 2017-12-18 | 2018-05-18 | 江西晶安新资源有限公司 | A kind of neutralization method of acidity uranium-containing waste water |
| KR102402227B1 (en) * | 2020-09-22 | 2022-05-26 | 한국지질자원연구원 | Method of waste water treatment using manganese-oxide coated sand generated from mine drainage treatment facility |
-
2001
- 2001-12-21 JP JP2001389244A patent/JP3715570B2/en not_active Expired - Fee Related
-
2002
- 2002-03-06 CA CA 2374861 patent/CA2374861C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015092798A1 (en) * | 2013-12-19 | 2015-06-25 | Mekorot Water Company, Ltd | Process, device and system for treatment of water |
| US10421671B2 (en) | 2013-12-19 | 2019-09-24 | Mekorot Water Company, Ltd. | Process, device and system for treatment of water |
| US11078094B2 (en) | 2013-12-19 | 2021-08-03 | Mekorot Water Company Ltd. | Process, device and system for treatment of water |
| ES2564566A1 (en) * | 2014-09-22 | 2016-03-23 | Universidad De Extremadura | New filtration system based on the use of green manganese sand for the elimination of the radium contained in water (Machine-translation by Google Translate, not legally binding) |
| RU2813760C1 (en) * | 2019-10-10 | 2024-02-16 | Альфа Тау Медикал Лтд. | Wet method of obtaining sources for radiation therapy |
| US12290702B2 (en) | 2019-10-10 | 2025-05-06 | Alpha Tau Medical Ltd | Wet preparation of radiotherapy sources |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3715570B2 (en) | 2005-11-09 |
| CA2374861C (en) | 2007-02-13 |
| JP2003185791A (en) | 2003-07-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20140306 |