Published September 2004 | Version v1
Journal article Metadata-only

Sorption and desorption of radiostrontium on powdered bentonite. Effect of pH and fulvic acid

Creators

  • 1. Chinese Academy of Sciences, Anhui (China). Inst. of Plasma Physics

Description

The effect of pH and fulvic acid on the sorption of Sr on bentonite was investigated by using batch experiments. The sorption and desorption isotherms of Sr on bentonite were determined at room temperature, at pH 6.0±0.2 and in presence of 0.1M NaCl. It was found that the sorption of Sr is independent at pH<8, and then increases slightly with increasing pH. Fulvic acid increases the sorption of Sr significantly on bentonite at low pH, but decreases the sorption of Sr at pH>8. The sorption of Sr on bentonite can be described by a reversible sorption process and the sorption mechanism consists mainly of ion exchange. (author)

Additional details

Publishing Information

Journal Title
Journal of Radioanalytical and Nuclear Chemistry
Journal Volume
261
Journal Issue
3
Journal Page Range
p. 497-500
ISSN
0236-5731
CODEN
JRNCDM

INIS

Country of Publication
Hungary
Country of Input or Organization
Hungary
INIS RN
35093184
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
BENTONITE; CHEMICAL REACTION KINETICS; DESORPTION; FULVIC ACIDS; ION EXCHANGE; PH VALUE; SORPTION; STRONTIUM
Descriptors DEC
ALKALINE EARTH METALS; CLAYS; ELEMENTS; INORGANIC ION EXCHANGERS; ION EXCHANGE MATERIALS; KINETICS; MATERIALS; METALS; MINERALS; ORGANIC ACIDS; ORGANIC COMPOUNDS; REACTION KINETICS; SILICATE MINERALS; SORPTION

Optional Information

Notes
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