Cs desorption from lichen using acid solutions

Desoprtion of Cs from samples of Cetraria islandica lichen using HCl (A) and HNO3 (B) acid solutions with pH values from 2.00 to 3.75 was investigated. After five consecutive desorptions lasting 24 h it was shown that between 52.2% (solution B pH 3.28) and 72.2% (solution A pH 2.00) of Cs was desorb...

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Bibliographic Details
Published inRussian Journal of Physical Chemistry Vol. 83; no. 9; pp. 1547 - 1549
Main Authors Cuculovic, A A, Veselinovic, D, Miljanic, S S
Format Journal Article
LanguageEnglish
Published 01.09.2009
Subjects
Cetraria islandica
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Summary:Desoprtion of Cs from samples of Cetraria islandica lichen using HCl (A) and HNO3 (B) acid solutions with pH values from 2.00 to 3.75 was investigated. After five consecutive desorptions lasting 24 h it was shown that between 52.2% (solution B pH 3.28) and 72.2% (solution A pH 2.00) of Cs was desorbed from the lichen and the initial desorptions were the most successful. Lichen desorbed with the stated solutions did not undergo structural changes. The amount of absorbed water from solutions A and B, used for desorption from lichen, in relation to the starting volume (expressed in %) showed that solution concentration did not take place. Lichen act as neutralizing agents because the pH of the lichen thallus is higher than the pH value of the solution used
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ISSN:0036-0244
1531-863X
DOI:10.1134/S0036024409090234