Published July 2017 | Version v1
Journal article Metadata-only

Sorption behaviour of Np(IV) on illite, shale and MX-80 in high ionic strength solutions

Creators

  • 1. McMaster University, Hamilton, ON (Canada). Department of Engineering Physics
  • 2. The University of Tokyo, Tokyo (Japan)
  • 3. Nuclear Waste Management Organization, Toronto, ON (Canada)

Description

The dependence of sorption distribution coefficient (Kd) of Np(IV) for illite, shale and MX-80 was investigated as a function of pHc and ionic strength (I) under high ionic strength, reducing conditions. The overall trends of Kd on three solids were independent of pHc at 5 ≤ pHc ≤ 10 and I at 0.5 M ≤ I ≤ 6 M. The surface complexation constants of Np(IV) sorption on illite and MX-80 were estimated by the 2 SPNE SC/CE model. The sorption model well predicted the pHc dependence of Kd, but could not completely describe the ionic strength dependence. (author)

Additional details

Publishing Information

Journal Title
Journal of Radioanalytical and Nuclear Chemistry
Journal Volume
313
Journal Issue
1
Journal Page Range
p. 1-11
ISSN
0236-5731
CODEN
JRNCDM

INIS

Country of Publication
Hungary
Country of Input or Organization
Hungary
INIS RN
48079748
Subject category
S58: GEOSCIENCES;
Descriptors DEI
ACTINIDES; BENTONITE; CANADA; DISTRIBUTION FUNCTIONS; ILLITE; ION EXCHANGE; MONTMORILLONITE; PH VALUE; RADIOACTIVE WASTE DISPOSAL; SEDIMENTARY ROCKS; SHALES; SORPTIVE PROPERTIES
Descriptors DEC
CLAYS; DEVELOPED COUNTRIES; ELEMENTS; FUNCTIONS; INORGANIC ION EXCHANGERS; ION EXCHANGE MATERIALS; MANAGEMENT; MATERIALS; METALS; MINERALS; NORTH AMERICA; RADIOACTIVE WASTE MANAGEMENT; ROCKS; SEDIMENTARY ROCKS; SILICATE MINERALS; SURFACE PROPERTIES; WASTE DISPOSAL; WASTE MANAGEMENT

Optional Information

Notes
50 refs.