Removal of 210Po from aqueous media and its thermodynamics and kinetics

S. Akyil Erenturk*, A. Kilincarslan Kaygun

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8 Atıf (Scopus)

Özet

In this study, the composite adsorbent as granule was prepared by mixing of polyacrylonitrile (PAN) and a natural zeolite (clinoptilolite) in specific conditions. The prepared composite adsorbent was used for investigating the adsorption behaviour of 210Po. Adsorption of 210Po was studied in a column system. The effective parameters such as initial activity concentration of 210Po, pH of the aqueous solution, contact time and temperature of solution for adsorption behaviour of 210Po were studied. Adsorption yield of 210Po on composite adsorbent from aqueous solution in optimum conditions were determined as 75.00 ± 0.15%. The adsorption equilibrium data was examined using various well-known isotherm models such as Freundlich, Langmuir, Dubinin and Radushkevish and Tempkin, and it was observed that the experimental equilibrium data well fitted and found to be in good agreement with the Tempkin model. Adsorption thermodynamics and kinetics of the polonium were studied. It was found that the processes for 210Po were exothermic and spontaneous. The kinetic data conformed better to the pseudo-second order equation.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)3-9
Sayfa sayısı7
DergiJournal of Environmental Radioactivity
Hacim174
DOI'lar
Yayın durumuYayınlandı - 1 Ağu 2017

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Publisher Copyright:
© 2017 Elsevier Ltd

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