Vliv teploty na adsorpci olovnatých iontů z vodného roztoku na hnědém uhlí

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F08%3AA0900QQE" target="_blank" >RIV/61988987:17310/08:A0900QQE - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Temperature dependence of lead (II) adsorption from aqueous solutions on subbituminous coal surface

Popis výsledku v původním jazyce

Adsorption behavior of lead (II) ions on subbituminous coal sample was investigated at temperatures 30 and 60°C. Batch adsorption experiments were used to study the shape of adsorption isotherms as well as the adsorption kinetics. SETARAM C80 calorimeterequipped with mixing vessel was then applied to determine heat effects accompanying the interactions of lead (II) ions with coal surface. As a result, the most significant effect of temperature was ascertained for the kinetics of adsorption process. Onthe other hand, quite negligible shift in adsorption capacity of coal to Pb(II) ions with temperature was found. Simultaneously, practically no measurable change in enthalpy of adsorption with rising temperature was confirmed. Based on the obtained experimental data, principal thermodynamic parameters concerning adsorption process (e.g. activation energy of adsorption, change in Gibbs energy, ?) were estimated and discussed.

Název v anglickém jazyce

Temperature dependence of lead (II) adsorption from aqueous solutions on subbituminous coal surface

Popis výsledku anglicky

Adsorption behavior of lead (II) ions on subbituminous coal sample was investigated at temperatures 30 and 60°C. Batch adsorption experiments were used to study the shape of adsorption isotherms as well as the adsorption kinetics. SETARAM C80 calorimeterequipped with mixing vessel was then applied to determine heat effects accompanying the interactions of lead (II) ions with coal surface. As a result, the most significant effect of temperature was ascertained for the kinetics of adsorption process. Onthe other hand, quite negligible shift in adsorption capacity of coal to Pb(II) ions with temperature was found. Simultaneously, practically no measurable change in enthalpy of adsorption with rising temperature was confirmed. Based on the obtained experimental data, principal thermodynamic parameters concerning adsorption process (e.g. activation energy of adsorption, change in Gibbs energy, ?) were estimated and discussed.

Druh

D - Stať ve sborníku

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2008

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceeding

ISBN

1-890977-25-X

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

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Název nakladatele

Pittsburgh coal conference

Místo vydání

Pittsburgh

Místo konání akce

Pittsburgh

Datum konání akce

29. 9. 2008

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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