Published March 2009 | Version v1
Journal article Metadata-only

Characterization of MX-80 bentonite and its sorption of radionickel in the presence of humic and fulvic acids

Creators

  • 1. Chinese Academy of Sciences, Hefei (China). Institute of Plasma Physics
  • 2. North China Electric Power University, Beijing (China). School of Nuclear Science and Engineering
  • 3. Shandong University of Technology, Zibo (China). School of Chemical Engineering

Description

MX-80 bentonite is considered as one of the best backfill materials for high-level radioactive nuclear waste. Herein, the bentonite is characterized by using XRD and FTIR techniques. Sorption of radionickel to MX-80 bentonite in the presence/absence of humic acid (HA) or fulvic acid (FA) as a function of pH is investigated. The results indicate that the presence of HA or FA decreases the sorption of Ni2+ obviously. The different experimental processes do not affect the sorption of nickel to FA/HA bound bentonite. The sorption of Ni2+ on FA/HA-bound bentonite decreases with the increasing FA/HA content in the systems. The mechanism of nickel sorption is also discussed in detail. (author)

Additional details

Publishing Information

Journal Title
Journal of Radioanalytical and Nuclear Chemistry
Journal Volume
279
Journal Issue
3
Journal Page Range
p. 701-708
ISSN
0236-5731
CODEN
JRNCDM

INIS

Country of Publication
Hungary
Country of Input or Organization
Hungary
INIS RN
40055542
Subject category
S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY; S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
BENTONITE; FULVIC ACIDS; HUMIC ACIDS; NICKEL; SORPTION; X-RAY DIFFRACTION
Descriptors DEC
CLAYS; COHERENT SCATTERING; DIFFRACTION; ELEMENTS; INORGANIC ION EXCHANGERS; ION EXCHANGE MATERIALS; MATERIALS; METALS; MINERALS; ORGANIC ACIDS; ORGANIC COMPOUNDS; SCATTERING; SILICATE MINERALS; TRANSITION ELEMENTS

Optional Information

Notes
16 refs.