Published September 30, 1992
| Version v1
Patent
Open
Procedure for concentrating the radioactive waste solutions from nuclear power plants
Description
Pollutants such as oxalic, citric, tartaric acids and permanganates are removed, and the waste solution is treated with sodium and/or potassium hydroxide or with a strong mineral acid such as nitric acid. The solution so treated is evaporated to a salt concentration of 310 to 900 g/dm3. This concentrate is stable at temperatures up to 20 degC and can be stored for a year. No crystals or solids separate from the solution during storage, and no special equipment is needed. (M.D.)
Files
25001099.pdf
Files
(180.5 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:ffd9413cc01aefa4c3a01617ef659757
|
180.5 kB | Preview Download |
Additional details
Additional titles
- Original title (Czech)
- Zpusob koncentrovani radioaktivniho odpadniho roztoku z jadernych elektraren
Publishing Information
- Imprint Pagination
- 5 p.
- IPC:
- Int. Cl. G21F9/04.
- IPC
- Int. Cl. G21F9/04.
- Patent number
- CZ patent document 274452/B2/
INIS
- Country of Publication
- Czech Republic
- Country of Input or Organization
- Czech Republic
- INIS RN
- 25001099
- Subject category
- S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES;
- Descriptors DEI
- BORIC ACID; CITRIC ACID; EVAPORATION; FILTRATION; NITRIC ACID; OXALIC ACID; PERMANGANATES; POTASSIUM COMPOUNDS; POTASSIUM HYDROXIDES; POTASSIUM NITRATES; RADIOACTIVE EFFLUENTS; RADIOACTIVE WASTE PROCESSING; SODIUM HYDROXIDES; SODIUM NITRATES
- Descriptors DEC
- ALKALI METAL COMPOUNDS; BORON COMPOUNDS; CARBOXYLIC ACIDS; DICARBOXYLIC ACIDS; HYDROGEN COMPOUNDS; HYDROXIDES; HYDROXY ACIDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; MANAGEMENT; MANGANESE COMPOUNDS; MATERIALS; NITRATES; NITROGEN COMPOUNDS; ORGANIC ACIDS; ORGANIC COMPOUNDS; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; RADIOACTIVE MATERIALS; RADIOACTIVE WASTES; SEPARATION PROCESSES; SODIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; WASTE MANAGEMENT; WASTE PROCESSING
Optional Information
- Secondary number(s)
- CZ patent application PV 3646-85.G; HU priority 1947/84.