SORPTION OF NP-239 AND U-235 FISSION-PRODUCTS BY ZEOLITE-Y, MEXICAN NATURAL ERIONITE, AND BENTONITE

Authors
OLGUIN MT SOLACHE M ITURBE JL BOSCH P BULBULIAN S
Citation
Mt. Olguin et al., SORPTION OF NP-239 AND U-235 FISSION-PRODUCTS BY ZEOLITE-Y, MEXICAN NATURAL ERIONITE, AND BENTONITE, Separation science and technology, 31(15), 1996, pp. 2021-2044
Citations number
18
Categorie Soggetti
Engineering, Chemical",Chemistry
Journal title
Separation science and technology → ACNP
ISSN journal
01496395
Volume
31
Issue
15
Year of publication
1996
Pages
2021 - 2044
Database
ISI
SICI code
0149-6395(1996)31:15<2021:SONAUF>2.0.ZU;2-O
Abstract
Zeolite Y, erionite, and bentonite have been used in this work to remo ve Np-239 and U-235 fission products from aqueous solutions at various pH values. it was found that the sorption of fission products by alum inosilicates takes place by different mechanisms, mainly ion exchange, precipitation, and electrostatic surface interaction. The radionuclid es content was determined by gamma-spectrometry, and x-ray diffraction was used to learn whether the solids maintained their crystallinity a t different pH values.