137Cs Desorption from Lichen Using Acid Solutions
ABSTRACT Desorption of 137Cs 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 24h it was shown that between 52.2% (solutions B pH 3.28) and 72.2% (solution A pH 2.00) of 137Cs was desorbed from the lichen and the initial desorptions were the most successful. Lichen desorbed with the stated solutions did not undergo structural changes.
engleski
2009
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lichen, 137Cs, radionuclides, sorbents