Biosorption of mercury on magnetically modified yeast cells

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67179843%3A_____%2F06%3A00047642" target="_blank" >RIV/67179843:_____/06:00047642 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Biosorption of mercury on magnetically modified yeast cells

Original language description

Brewer?s yeast (Saccharomyces cerevisiae subsp. uvarum) cells were magnetically modified with water based magnetic fluid and used for biosorption of mercury in batch system. The biosorption process was fast; 80% of biosorption occured within 60 min and equilibrium was achieved at around 90 min. The maximum Hg2+ biosorption capacity was 114.6 mg/g at 35 degrees. The results were well fitted to the Langmuir isotherm. The applicability of two kinetic models including pseudo-first order and pseudo-second order model was estimated on the basis of comparative analysis of the corresponding rate parameters, equilibrium capacity and correlation coefficients. Results suggest that chemisorption processes could be the ratelimiting step in the biosorption process.Biosorption of heavy metal ions from artificial wastewater was also studied.

Czech name

Biosorpce mědi magneticky modifikovanými kvasinkami

Czech description

Pivovarské kvasinky (Saccharomyces cerevisiae subsp. uvarum) byly modifikovány magnetickou kapalinou a použity pro biosorpci mědnatých iontů ve vsádkovém uspořádání. Proces biosorpce byl rychlý; 80% iontů bylo adsorbováno do 60 min a rovnováhy bylo dosaženo po 90 min. Maximální kapacita pro Hg2+ byla 114.6 mg/g při 35 st. Celsia, adsorpce odpovídala modelu Langmuirovy izotermy. Byly navrženy kinetické modely pseudo-prvního a pseudo-druhého řádu.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EI - Biotechnology and bionics

OECD FORD branch

—

Project

<a href="/en/project/OC%20108" target="_blank" >OC 108: Magnetic technigues for the detection and determination of xenobiotics in water</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2006

Confidentiality

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

Name of the periodical

Separation and Purification Technology

ISSN

1383-5866

e-ISSN

—

Volume of the periodical

52

Issue of the periodical within the volume

-

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

253-260

UT code for WoS article

—

EID of the result in the Scopus database

—