Effect of grain size on the Sr-85(2+) sorption and desorption in columns of crushed granite and infill materials from granitic water under dynamic conditions

Kód výsledku v IS VaVaI

RIV/46356088:_____/13:#0001366 - isvavai.cz

Výsledek na webu

http://dx.doi.org/10.1007/s10967-012-2311-z

DOI - Digital Object Identifier

10.1007/s10967-012-2311-z

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of grain size on the Sr-85(2+) sorption and desorption in columns of crushed granite and infill materials from granitic water under dynamic conditions

Popis výsledku v původním jazyce

The sorption of Sr-85(2+) in the form of 10(-6) M Sr(NO3)(2) in synthetic granitic water (SGW), and its desorption using the same radiotracer-free solution, were investigated under dynamic conditions in columns loaded with crushed granitic materials. Thegoal of study was to evaluate the influence of grain size on the retardation (R) and distribution (K (d)) coefficients of the soluble Sr-85(2+), as well as on the other transport parameters type of Peclet number (Pe) and hydrodynamic dispersion coefficient (D (d)). Pure granitic sample and granitic fissure infill samples were used, crushed and sieved into 4 different grain size from 0.063 to1.25 mm were used. In order to determine migration parameters, the model based on erfc-function was used, assuming reversible equilibrium linear or non-linear (Freundlich) sorption/desorption isotherms. By means of both model approaches, the experimental breakthrough curves were fitted using non-linear regression procedure according to Newton-Raphso

Název v anglickém jazyce

Effect of grain size on the Sr-85(2+) sorption and desorption in columns of crushed granite and infill materials from granitic water under dynamic conditions

Popis výsledku anglicky

The sorption of Sr-85(2+) in the form of 10(-6) M Sr(NO3)(2) in synthetic granitic water (SGW), and its desorption using the same radiotracer-free solution, were investigated under dynamic conditions in columns loaded with crushed granitic materials. Thegoal of study was to evaluate the influence of grain size on the retardation (R) and distribution (K (d)) coefficients of the soluble Sr-85(2+), as well as on the other transport parameters type of Peclet number (Pe) and hydrodynamic dispersion coefficient (D (d)). Pure granitic sample and granitic fissure infill samples were used, crushed and sieved into 4 different grain size from 0.063 to1.25 mm were used. In order to determine migration parameters, the model based on erfc-function was used, assuming reversible equilibrium linear or non-linear (Freundlich) sorption/desorption isotherms. By means of both model approaches, the experimental breakthrough curves were fitted using non-linear regression procedure according to Newton-Raphso

Druh

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

CEP obor

DL - Jaderné odpady, radioaktivní znečištění a kontrola

OECD FORD obor

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Projekt

FR-TI1/362: Výzkum vlastností materiálů pro bezpečné ukládání radioaktivních odpadů a vývoj postupů jejich hodnocení

Návaznosti

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

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

Journal of Radioanalytical and Nuclear Chemistry

ISSN

0236-5731

e-ISSN

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Svazek periodika

297

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

33-39

Kód UT WoS článku

000320284200005

EID výsledku v databázi Scopus

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