Radioactive waste disposal of water containing waste using urea-formaldehyde resin
US4010108A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 1973 |
| Grant date | Mar 1, 1977 |
| Priority date | — |
| Expiry date | Nov 29, 1993 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21F9/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of disposing of wet radioactive waste materials such as those generated in the water used to cool atomic reactors, comprising combining the waste material with a hydrophilic resin in proportions sufficient to provide a solid mass of the resin with the radioactive waste component distributed within. In its preferred form, the waste material is concentrated by separating water from the radioactive portions thereof by methods such as evaporation, taking up the waste components with an ion exchange resin and separating the resin from the bulk of the water, or by the addition of flocculating agents or the like and filtering. The preferred hydrophilic resinous material is a conventional urea-formaldehyde dispersion, which is partially polymerized and capable of taking up water and fully polymerizing upon the addition of an acidic curing agent. The method also contemplates adding a substantially waterproof resinous material to the surface of the solid block, or enclosing it in a waterproof container, or both.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.