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Copper biosorption from aqueous solutions by sour orange residue.

Identifieur interne : 000B02 ( PubMed/Curation ); précédent : 000B01; suivant : 000B03

Copper biosorption from aqueous solutions by sour orange residue.

Auteurs : M. Khormaei [Iran] ; B. Nasernejad ; M. Edrisi ; T. Eslamzadeh

Source :

RBID : pubmed:17493747

English descriptors

Abstract

In this study, copper uptake by sour orange residue (SOR) was investigated. Equilibrium isotherms and kinetics were obtained and the effects of solution pH, temperature, and particle size were studied in batch experiments. Equilibrium was well described by Langmuir and Freundlich isotherms and kinetics was found to be best-fit pseudo-second order equations. Maximum uptake was observed at pH 5. With an increase in temperature from 20 to 50 degrees C, copper removal decreased about 20%. Additional chemical treatment of the biosorbent by NaOH, increased the biosorption capacity. It was found that increase in biosorbent particle size had no significant effects on the final equilibrium concentration, but decreased biosorption rate.

DOI: 10.1016/j.jhazmat.2007.03.074
PubMed: 17493747

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pubmed:17493747

Le document en format XML

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<div type="abstract" xml:lang="en">In this study, copper uptake by sour orange residue (SOR) was investigated. Equilibrium isotherms and kinetics were obtained and the effects of solution pH, temperature, and particle size were studied in batch experiments. Equilibrium was well described by Langmuir and Freundlich isotherms and kinetics was found to be best-fit pseudo-second order equations. Maximum uptake was observed at pH 5. With an increase in temperature from 20 to 50 degrees C, copper removal decreased about 20%. Additional chemical treatment of the biosorbent by NaOH, increased the biosorption capacity. It was found that increase in biosorbent particle size had no significant effects on the final equilibrium concentration, but decreased biosorption rate.</div>
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