Sorption of $^{137}Cs$ and Pb on sediment samples from a drinking water reservoir

Sorption of $^{137}Cs$ and Pb on sediment samples from a drinking water reservoir

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Sorption of $^{137}Cs$ and Pb on sediment samples from a drinking water reservoir

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Bibliographic description

punktacja MEiN [2011 A]: 15

title:	Sorption of $^{137}Cs$ and Pb on sediment samples from a drinking water reservoir
author:	Szarłowicz Katarzyna , Reczyński Witold, Gołaś Janusz, Kościelniak Paweł , Skiba Michał , Kubica Barbara
journal title:	Polish Journal of Environmental Studies
volume:	20
issue:	5
date of publication :	2011
pages:	1305-1312
ISSN:	1230-1485
eISSN:	2083-5906
URL:	http://www.pjoes.com/pdf-88679-22538?filename=Sorption%20of.pdf
date accessed:	2018-12-14
notes:	Bibliogr. s. 1312.
language:	English
journal language:	English
abstract in English:	This study focused on 137Cs and Pb accumulation in sediments from the Dobczyce Reservoir in southern Poland. Elements’ spatial distribution as well as their distribution in sediment core samples were analyzed. The conditions of cesium and lead desorption were also investigated. The distribution coefficient for 137Cs (KCs) was obtained using a radiometric determination in combination with static ion-exchange chromatography. Determination of the distribution coefficient for Pb (KPb) was performed by means of atomic absorption spectrometry (electrothermal technique). The experiments were carried out considering various concentrations of potassium and calcium ions (from 5·10-3 to 10-5 mol·dm-3 by addition of KNO3 and Ca(NO3)2, respectively). It was found that: a) spatial distribution of anthropogenic 137Cs and Pb in the sediments of the Dobczyce Reservoir results mainly from hydrological conditions of the sedimentation process and, on the other hand, from the sorptive properties of the deposited material b) in the case of 137Cs sorption, a pronounced competitive effect was noted for K ions; much less effect was found for Ca. On the contrary, in the case of lead such a competitive effect was visible for Ca, much less for K. The conditions of 137Cs desorption from the sediments caused by K and Ca ions present in water were estimated.
keywords in English:	sediments, Dobczyce reservoir, $^{137}Cs$ and Pb sorption and desorption, gamma spectrometry, distribution coefficient
affiliation:	Wydział Biologii i Nauk o Ziemi : Instytut Nauk Geologicznych, Wydział Chemii : Zakład Chemii Analitycznej
type:	journal article
subtype:	academic paper

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