Published December 15, 1981
| Version v1
Patent
Open
Method of removal of radium from water by filtration through filter sand
Creators
Description
Radium removal from water is claimed by filtering through filter sand impregnated with higher manganese oxides containing at least 30% MnOsub(x) (x = 1.7 - 2.0). In filtering through sand impregnated with 42% MnO2, 37% Fe2O3 and 21% CaCO3, radium level in water was reduced by three orders. The packing is regenerated with a solution of 1 - 5% MnCl2 adjusted to pH 2 - 4. After 2 - 24 hours of regeneration the packing is rinsed with water and a 1% solution of KMnO4. (Ha)
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Additional details
Additional titles
- Original title (Czech)
- Zpusob odstranovani radia z vody filtraci pres filtracni pisek
Publishing Information
- Imprint Pagination
- 2 p.
- IPC:
- Int. Cl. G21F9/04.
- IPC
- Int. Cl. G21F9/04.
- Patent number
- CS patent document 190791/B/
INIS
- Country of Publication
- Serbia and Montenegro
- Country of Input or Organization
- Serbia and Montenegro
- INIS RN
- 13713826
- Subject category
- S58: GEOSCIENCES;
- Descriptors DEI
- CALCIUM CARBONATES; DECONTAMINATION; DRINKING WATER; FILTRATION; IRON OXIDES; MANGANESE OXIDES; RADIUM; REGENERATION; SAND
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; ALKALINE EARTH METALS; CALCIUM COMPOUNDS; CARBON COMPOUNDS; CARBONATES; CHALCOGENIDES; CLEANING; ELEMENTS; HYDROGEN COMPOUNDS; IRON COMPOUNDS; MANGANESE COMPOUNDS; METALS; OXIDES; OXYGEN COMPOUNDS; SEPARATION PROCESSES; TRANSITION ELEMENT COMPOUNDS; WATER