Abstract
In order to treat simply and safely the waste-containing radioactive technetium, a study of the removal of pertechnetate ion TcO4 - (the main chemical form of technetium) from radioactive waste was carried out using an anion-exchange membrane in which trimethylhydroxylpropylammonium groups were homogeneously dispersed with high density. TcO4- flux through the paper membrane is larger than that through a polymer membrane; moreover, TcO4- in the paper membrane can exist in the membrane phase in spite of the presence of a large amount of Cl-. The anion-exchange paper membrane possesses three outstanding characteristics: (1) higher fluxes of TcO4 - and Cl- than that of the polymer membrane, (2) almost the same occupation of TcO4- in available ion-exchange sites as in the polymer membrane, and (3) higher diffusional membrane permeability ratio pTcO4-0/ PCl -0 than that of the polymer membrane.
| Original language | English |
|---|---|
| Pages (from-to) | 119-126 |
| Number of pages | 8 |
| Journal | Environment Protection Engineering |
| Volume | 31 |
| Issue number | 3-4 |
| Publication status | Published - 2005 |
| Externally published | Yes |
Keywords
- Anion-exchange paper membrane
- Membrane permeability
- Pertechnetate ion
- Phenomenological equation
- Radioactive waste
ASJC Scopus subject areas
- Environmental Engineering
- Waste Management and Disposal