Determination of Cs-137 and Sr-85 transport parameters in fucoidic sand columns and groundwater system

Kód výsledku v IS VaVaI

RIV/46356088:_____/11:#0001159 - isvavai.cz

Výsledek na webu

http://dx.doi.org/10.2478/s11532-011-0076-9

DOI - Digital Object Identifier

10.2478/s11532-011-0076-9

Jazyk výsledku

angličtina

Název v původním jazyce

Determination of Cs-137 and Sr-85 transport parameters in fucoidic sand columns and groundwater system

Popis výsledku v původním jazyce

The determination is based on the evaluation of experimentally obtained breakthrough curves using the erfc-function. The first method is founded on the assumption of a reversible linear sorption/desorption isotherm of radionuclides on solid phase with constant distribution and retardation coefficients, whereas the second one is based on the assumption of a reversible non-linear sorption/desorption isotherm described with the Freundlich equation, i.e., with non-constant distribution and retardation coefficients. Undisturbed cores of 5 cm in diameter and 10 cm long were embedded in the Eprosin-type cured epoxide resin column. In this study the so-called Cenomanian background groundwater was used as transport medium. The groundwater containing radionuclides was introduced at the bottom of the columns at about 4 mL h(-1) constant flow-rate. The results have shown that in the investigated fucoidic sands: (i) the sorption was in principle characterized by linear isotherms and the correspondi

Název v anglickém jazyce

Determination of Cs-137 and Sr-85 transport parameters in fucoidic sand columns and groundwater system

Popis výsledku anglicky

The determination is based on the evaluation of experimentally obtained breakthrough curves using the erfc-function. The first method is founded on the assumption of a reversible linear sorption/desorption isotherm of radionuclides on solid phase with constant distribution and retardation coefficients, whereas the second one is based on the assumption of a reversible non-linear sorption/desorption isotherm described with the Freundlich equation, i.e., with non-constant distribution and retardation coefficients. Undisturbed cores of 5 cm in diameter and 10 cm long were embedded in the Eprosin-type cured epoxide resin column. In this study the so-called Cenomanian background groundwater was used as transport medium. The groundwater containing radionuclides was introduced at the bottom of the columns at about 4 mL h(-1) constant flow-rate. The results have shown that in the investigated fucoidic sands: (i) the sorption was in principle characterized by linear isotherms and the correspondi

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CB - Analytická chemie, separace

OECD FORD obor

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Projekt

FT-TA3/070: Aplikace inovativních sanačních technologií a postupů při odstraňování následků chemické těžby uranu.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Central European Journal of Chemistry

ISSN

1895-1066

e-ISSN

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Svazek periodika

9

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

10

Strana od-do

798-807

Kód UT WoS článku

000293020400005

EID výsledku v databázi Scopus

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