Application of immobilized waste brewery yeast cells for Cd2+ removal. Equilibrium and kinetics
In this investigation, the removal of Cd2+ by a brewery waste biomass in immobilized (Ca alginate beads) form was studied. The removal process was conducted at room temperature under batch conditions (magnetic stirring) using different initial cadmium concentrations. The equilibrium of biosorption w...
Main Authors: | , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Serbian Chemical Society
2011-03-01
|
Series: | Journal of the Serbian Chemical Society |
Subjects: | |
Online Access: | http://www.shd.org.rs/JSCS/Vol76/No3/05_4786_4124.pdf |
id |
doaj-90be43ce8b164d37a0a90375c374c10d |
---|---|
record_format |
Article |
spelling |
doaj-90be43ce8b164d37a0a90375c374c10d2020-11-24T23:07:41ZengSerbian Chemical Society Journal of the Serbian Chemical Society0352-51392011-03-01763363373Application of immobilized waste brewery yeast cells for Cd2+ removal. Equilibrium and kineticsSZENDE TONKANDRADA MĂICĂNEANUCERASELLA INDOLEANSILVIA BURCACORNELIA MAJDIKIn this investigation, the removal of Cd2+ by a brewery waste biomass in immobilized (Ca alginate beads) form was studied. The removal process was conducted at room temperature under batch conditions (magnetic stirring) using different initial cadmium concentrations. The equilibrium of biosorption was reached in 150 min for all employed initial concentrations. The maximum biosorption capacity was calculated to be 5.96 mg Cd2+ g-1 yeast for an initial Cd2+ concentration of 169 mg L-1. Langmuir and Freundlich adsorption isotherms were used to correlate the equilibrium adsorption data. Based on the correlation coefficients, it was concluded that the Langmuir isotherm is more suitable for describing the equilibrium data of cadmium biosorption. In addition, first and pseudo-second order kinetic models were applied to describe the biosorption process. The kinetic parameters for the pseudo-second order kinetics were determined.http://www.shd.org.rs/JSCS/Vol76/No3/05_4786_4124.pdfSaccharomyces cerevisiaeimmobilizationcadmium biosorptionFreundlich and Langmuir modelskinetic models |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
SZENDE TONK ANDRADA MĂICĂNEANU CERASELLA INDOLEAN SILVIA BURCA CORNELIA MAJDIK |
spellingShingle |
SZENDE TONK ANDRADA MĂICĂNEANU CERASELLA INDOLEAN SILVIA BURCA CORNELIA MAJDIK Application of immobilized waste brewery yeast cells for Cd2+ removal. Equilibrium and kinetics Journal of the Serbian Chemical Society Saccharomyces cerevisiae immobilization cadmium biosorption Freundlich and Langmuir models kinetic models |
author_facet |
SZENDE TONK ANDRADA MĂICĂNEANU CERASELLA INDOLEAN SILVIA BURCA CORNELIA MAJDIK |
author_sort |
SZENDE TONK |
title |
Application of immobilized waste brewery yeast cells for Cd2+ removal. Equilibrium and kinetics |
title_short |
Application of immobilized waste brewery yeast cells for Cd2+ removal. Equilibrium and kinetics |
title_full |
Application of immobilized waste brewery yeast cells for Cd2+ removal. Equilibrium and kinetics |
title_fullStr |
Application of immobilized waste brewery yeast cells for Cd2+ removal. Equilibrium and kinetics |
title_full_unstemmed |
Application of immobilized waste brewery yeast cells for Cd2+ removal. Equilibrium and kinetics |
title_sort |
application of immobilized waste brewery yeast cells for cd2+ removal. equilibrium and kinetics |
publisher |
Serbian Chemical Society |
series |
Journal of the Serbian Chemical Society |
issn |
0352-5139 |
publishDate |
2011-03-01 |
description |
In this investigation, the removal of Cd2+ by a brewery waste biomass in immobilized (Ca alginate beads) form was studied. The removal process was conducted at room temperature under batch conditions (magnetic stirring) using different initial cadmium concentrations. The equilibrium of biosorption was reached in 150 min for all employed initial concentrations. The maximum biosorption capacity was calculated to be 5.96 mg Cd2+ g-1 yeast for an initial Cd2+ concentration of 169 mg L-1. Langmuir and Freundlich adsorption isotherms were used to correlate the equilibrium adsorption data. Based on the correlation coefficients, it was concluded that the Langmuir isotherm is more suitable for describing the equilibrium data of cadmium biosorption. In addition, first and pseudo-second order kinetic models were applied to describe the biosorption process. The kinetic parameters for the pseudo-second order kinetics were determined. |
topic |
Saccharomyces cerevisiae immobilization cadmium biosorption Freundlich and Langmuir models kinetic models |
url |
http://www.shd.org.rs/JSCS/Vol76/No3/05_4786_4124.pdf |
work_keys_str_mv |
AT szendetonk applicationofimmobilizedwastebreweryyeastcellsforcd2removalequilibriumandkinetics AT andradamaicaneanu applicationofimmobilizedwastebreweryyeastcellsforcd2removalequilibriumandkinetics AT cerasellaindolean applicationofimmobilizedwastebreweryyeastcellsforcd2removalequilibriumandkinetics AT silviaburca applicationofimmobilizedwastebreweryyeastcellsforcd2removalequilibriumandkinetics AT corneliamajdik applicationofimmobilizedwastebreweryyeastcellsforcd2removalequilibriumandkinetics |
_version_ |
1725617617124720640 |