Removal of pertechnetate ion (99mTco4-) from radioactive waste using anion-exchange paper membrane

Hiroyoshi Inoue, D. Shanthana Lakshmi, Mariko Yamasaki, Sho Ichi Yamagishi

Research output: Contribution to journalArticle

1 Citation (Scopus)

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 languageEnglish
Pages (from-to)119-126
Number of pages8
JournalEnvironment Protection Engineering
Volume31
Issue number3-4
Publication statusPublished - 2005
Externally publishedYes

Fingerprint

Radioactive wastes
radioactive waste
ion exchange
Ion exchange
Negative ions
membrane
Membranes
ion
Ions
polymer
technetium
Technetium
Polymers
removal
Fluxes
occupation
permeability

Keywords

  • Anion-exchange paper membrane
  • Membrane permeability
  • Pertechnetate ion
  • Phenomenological equation
  • Radioactive waste

ASJC Scopus subject areas

  • Waste Management and Disposal
  • Pollution
  • Environmental Engineering

Cite this

Removal of pertechnetate ion (99mTco4-) from radioactive waste using anion-exchange paper membrane. / Inoue, Hiroyoshi; Lakshmi, D. Shanthana; Yamasaki, Mariko; Yamagishi, Sho Ichi.

In: Environment Protection Engineering, Vol. 31, No. 3-4, 2005, p. 119-126.

Research output: Contribution to journalArticle

Inoue, Hiroyoshi ; Lakshmi, D. Shanthana ; Yamasaki, Mariko ; Yamagishi, Sho Ichi. / Removal of pertechnetate ion (99mTco4-) from radioactive waste using anion-exchange paper membrane. In: Environment Protection Engineering. 2005 ; Vol. 31, No. 3-4. pp. 119-126.
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