RO118948B1 - Process for removal and recovery of uranium from uraniferous waste water - Google Patents
Process for removal and recovery of uranium from uraniferous waste waterInfo
- Publication number
- RO118948B1 RO118948B1 ROA200201149A RO200201149A RO118948B1 RO 118948 B1 RO118948 B1 RO 118948B1 RO A200201149 A ROA200201149 A RO A200201149A RO 200201149 A RO200201149 A RO 200201149A RO 118948 B1 RO118948 B1 RO 118948B1
- Authority
- RO
- Romania
- Prior art keywords
- uranium
- uraniferous
- waste water
- water
- recovery
- Prior art date
Links
Landscapes
- Treatment Of Water By Ion Exchange (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention relates to a process for the removal and recovery of uranium from uraniferous waste water, for processing thereof and to purifying the industrial uranium concentrate. The uraniferous waste water having the above mentioned origin contains uranium at values higher than the concentration of 0.021 mgU/l and 0.1...0.3 mg U/ l respectively, provided by the legal norms in force and by water managing agreements in the nuclear enterprises, which leads to an increased radiologic risk for the population and environment. According to the invention, the process eliminates the disadvantages of other known processes, by reducing the uranium content in uraniferous water at the levels of the norms in force, also allowing the recovery in unitary flow of said radioelement as a recyclable product, namely the sodium diuranate. The uraniferous water is treated by contacting with ion exchange resin, Purolite A 600 U, highly basic, of gel-type, having the matrix of styrene-divenylbenzene polymer and ammonium cuaternary groups. After the treatment, a waste water having an uranium concentration of 0.02...0.3 mg U/ l is obtained. During the sorption of the uranium, the resin is charged with 10...18 g U/ l. The regeneration-elution of the charged resin is made with a solution containing 80 g of NaCl/ l and 5 g Na2CO3/ l and an industrial sodium diuranate is precipitated from the uraniferous eluate at a temperature of 80°C, by adding a NaOH solution.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ROA200201149A RO118948B1 (en) | 2002-08-23 | 2002-08-23 | Process for removal and recovery of uranium from uraniferous waste water |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ROA200201149A RO118948B1 (en) | 2002-08-23 | 2002-08-23 | Process for removal and recovery of uranium from uraniferous waste water |
Publications (1)
Publication Number | Publication Date |
---|---|
RO118948B1 true RO118948B1 (en) | 2004-01-30 |
Family
ID=64361882
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ROA200201149A RO118948B1 (en) | 2002-08-23 | 2002-08-23 | Process for removal and recovery of uranium from uraniferous waste water |
Country Status (1)
Country | Link |
---|---|
RO (1) | RO118948B1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10176898B2 (en) | 2010-11-15 | 2019-01-08 | Atomic Energy Of Canada Limited | Nuclear fuel containing a neutron absorber |
RU2696165C1 (en) * | 2017-01-09 | 2019-07-31 | Федеральное государственное автономное образовательное учреждение высшего образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина" | Method of uranium extraction from underground uranium-containing water |
CN111153466A (en) * | 2020-01-10 | 2020-05-15 | 东华理工大学 | Method for treating uranium-containing wastewater by using ion exchange resin |
-
2002
- 2002-08-23 RO ROA200201149A patent/RO118948B1/en unknown
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10176898B2 (en) | 2010-11-15 | 2019-01-08 | Atomic Energy Of Canada Limited | Nuclear fuel containing a neutron absorber |
RU2696165C1 (en) * | 2017-01-09 | 2019-07-31 | Федеральное государственное автономное образовательное учреждение высшего образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина" | Method of uranium extraction from underground uranium-containing water |
CN111153466A (en) * | 2020-01-10 | 2020-05-15 | 东华理工大学 | Method for treating uranium-containing wastewater by using ion exchange resin |
CN111153466B (en) * | 2020-01-10 | 2023-09-29 | 东华理工大学 | Method for treating uranium-containing wastewater by utilizing ion exchange resin |
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