REMOVAL OF COPPER IONS FROM AQUEOUS SOLUTIONS BY REYNOUTRIA JAPONICA BIOMASS

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27350%2F13%3A86086157" target="_blank" >RIV/61989100:27350/13:86086157 - isvavai.cz</a>

Výsledek na webu

<a href="http://sgem.org/sgemlib/spip.php?article3359" target="_blank" >http://sgem.org/sgemlib/spip.php?article3359</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5593/SGEM2013/BE5.V1/S20.107" target="_blank" >10.5593/SGEM2013/BE5.V1/S20.107</a>

Jazyk výsledku

angličtina

Název v původním jazyce

REMOVAL OF COPPER IONS FROM AQUEOUS SOLUTIONS BY REYNOUTRIA JAPONICA BIOMASS

Popis výsledku v původním jazyce

In this study, the sorption capacity of plant biomass has been studied; particularly the ability of chemically pretreated biomass of both isolated roots and the mixture of roots, stems and leaves of an invasive plant Reynoutria japonica, to bind up Cu(II) ions from aqueous solutions. The results of this biosorption study revealed that the rate and extent of copper ions uptake were affected by pH level, contact time, biomass concentration and initial metal concentration. The results of study at different pH levels, show that the maximum uptake of copper ions was obtained at pH 6 by biomass of roots; at pH 5 there were very similar results for both leaves and roots. In order to describe the kinetics of sorption of mixed biomass at pH 5, pseudo-second-order kinetic model was applied. Sorption isotherms were obtained for both biomass of roots (pH 5, biomass concentration 1 g/L and 10 g/L) and mixture of roots, stems and leaves (pH 5, biomass concentration 10 g/L). The equilibrium sorption data were described by the Langmuir and Freudlich isotherms models in both linear and non-linear forms; the best fit was obtained with non-linear Langmuir model. The maximal sorption capacity qmax 5.98 mg/g was found for the mixture biomass.

Název v anglickém jazyce

REMOVAL OF COPPER IONS FROM AQUEOUS SOLUTIONS BY REYNOUTRIA JAPONICA BIOMASS

Popis výsledku anglicky

In this study, the sorption capacity of plant biomass has been studied; particularly the ability of chemically pretreated biomass of both isolated roots and the mixture of roots, stems and leaves of an invasive plant Reynoutria japonica, to bind up Cu(II) ions from aqueous solutions. The results of this biosorption study revealed that the rate and extent of copper ions uptake were affected by pH level, contact time, biomass concentration and initial metal concentration. The results of study at different pH levels, show that the maximum uptake of copper ions was obtained at pH 6 by biomass of roots; at pH 5 there were very similar results for both leaves and roots. In order to describe the kinetics of sorption of mixed biomass at pH 5, pseudo-second-order kinetic model was applied. Sorption isotherms were obtained for both biomass of roots (pH 5, biomass concentration 1 g/L and 10 g/L) and mixture of roots, stems and leaves (pH 5, biomass concentration 10 g/L). The equilibrium sorption data were described by the Langmuir and Freudlich isotherms models in both linear and non-linear forms; the best fit was obtained with non-linear Langmuir model. The maximal sorption capacity qmax 5.98 mg/g was found for the mixture biomass.

Druh

D - Stať ve sborníku

CEP obor

JP - Průmyslové procesy a zpracování

OECD FORD obor

—

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název statě ve sborníku

SGEM 2013 : 13th international multidisciplinary scientific geoconference : GeoConference on Ecology, Economics, Education and legislation : 16-22, June, 2013, Albena, Bulgaria : conference proceedings. [Book 5]. Volume I

ISBN

978-619-7105-04-9

ISSN

1314-2704

e-ISSN

—

Počet stran výsledku

7

Strana od-do

817-824

Název nakladatele

STEF92 Technology Ltd.

Místo vydání

Sofia

Místo konání akce

Albena

Datum konání akce

16. 6. 2013

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000349062300107