Studium sorpce kovových iontů na lignit a huminové kyseliny

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F04%3APU44258" target="_blank" >RIV/00216305:26310/04:PU44258 - 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

Study of Sorption of Metal Ions on Lignite and Humic Acids

Popis výsledku v původním jazyce

The adsorption of some heavy metal ions (Co2+, Ni2+ and Cu2+) on modified lignite from South Moravia region was studied. The sorption properties of humic acids isolated from this lignite were also investigated. The kinetics of the adsorption process wasdescribed applying the Langmuir theory. The adsorption is considered to be the reaction of second order, the desorption is described by the first order kinetics. Nevertheless, the rate constants have to be taken as effective values, where the influence oof the size and the shape of particles is included. The sorption capacity of lignits and humic acids was calculated using Langmuir isotherms. The regression analysis confirmed very good accordance of experimental data with the Langmuir relations. Therefore, it can be concluded that heavy metal ions are predominantly chemically bound to the lignite and humic acids. Simultaneously, substantially higher adsorption ability of humic acids was documented, when compared with that of unmodified o

Název v anglickém jazyce

Study of Sorption of Metal Ions on Lignite and Humic Acids

Popis výsledku anglicky

The adsorption of some heavy metal ions (Co2+, Ni2+ and Cu2+) on modified lignite from South Moravia region was studied. The sorption properties of humic acids isolated from this lignite were also investigated. The kinetics of the adsorption process wasdescribed applying the Langmuir theory. The adsorption is considered to be the reaction of second order, the desorption is described by the first order kinetics. Nevertheless, the rate constants have to be taken as effective values, where the influence oof the size and the shape of particles is included. The sorption capacity of lignits and humic acids was calculated using Langmuir isotherms. The regression analysis confirmed very good accordance of experimental data with the Langmuir relations. Therefore, it can be concluded that heavy metal ions are predominantly chemically bound to the lignite and humic acids. Simultaneously, substantially higher adsorption ability of humic acids was documented, when compared with that of unmodified o

Druh

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

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/GP104%2F02%2FD036" target="_blank" >GP104/02/D036: Komplexotvorné procesy v systémech s charakteristickým obsahem huminových látek</a><br>

Návaznosti

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

Rok uplatnění

2004

Kód důvěrnosti údajů

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

Název periodika

Chemical Papers

ISSN

0366-6352

e-ISSN

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Svazek periodika

58

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

6

Strana od-do

170-175

Kód UT WoS článku

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EID výsledku v databázi Scopus

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