Adsorption Equilibria of Basic Dyestuffs onto Maize Cob

Equilibrium isotherms have been determined for the adsorption of basic dyestuffs, namely, Basic Blue 69 (BB 69) and Basic Red 22 (BR 22), onto maize cob. The experimental results have been fitted with Langmuir, Freundlich and Redlich–Peterson isotherms. The maximum adsorption capacity of the maize c...

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Main Author: Mohammad S. El-Geundi
Format: Article
Language:English
Published: SAGE Publishing 1990-09-01
Series:Adsorption Science & Technology
Online Access:https://doi.org/10.1177/026361749000700302
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author Mohammad S. El-Geundi
author_facet Mohammad S. El-Geundi
author_sort Mohammad S. El-Geundi
collection DOAJ
description Equilibrium isotherms have been determined for the adsorption of basic dyestuffs, namely, Basic Blue 69 (BB 69) and Basic Red 22 (BR 22), onto maize cob. The experimental results have been fitted with Langmuir, Freundlich and Redlich–Peterson isotherms. The maximum adsorption capacity of the maize cob was found to be 160 mg dye per g maize cob for BB 69 and 94.5 mg dye per g maize cob for BR 22. The relative costs of dye removal are reported based on adsorption capacity only; the cost of removal of BB 69 and BR 22 using maize cob was only 4.1% and 8.3%, respectively, that of activated carbon.
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spelling doaj.art-2d08579cd0cc4ce49e484acaa2ccf2d32025-01-03T01:24:46ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40381990-09-01710.1177/026361749000700302Adsorption Equilibria of Basic Dyestuffs onto Maize CobMohammad S. El-Geundi0Department of Chemical Engineering, Faculty of Engineering. Minia University. EL-Minia, Egypt.Equilibrium isotherms have been determined for the adsorption of basic dyestuffs, namely, Basic Blue 69 (BB 69) and Basic Red 22 (BR 22), onto maize cob. The experimental results have been fitted with Langmuir, Freundlich and Redlich–Peterson isotherms. The maximum adsorption capacity of the maize cob was found to be 160 mg dye per g maize cob for BB 69 and 94.5 mg dye per g maize cob for BR 22. The relative costs of dye removal are reported based on adsorption capacity only; the cost of removal of BB 69 and BR 22 using maize cob was only 4.1% and 8.3%, respectively, that of activated carbon.https://doi.org/10.1177/026361749000700302
spellingShingle Mohammad S. El-Geundi
Adsorption Equilibria of Basic Dyestuffs onto Maize Cob
Adsorption Science & Technology
title Adsorption Equilibria of Basic Dyestuffs onto Maize Cob
title_full Adsorption Equilibria of Basic Dyestuffs onto Maize Cob
title_fullStr Adsorption Equilibria of Basic Dyestuffs onto Maize Cob
title_full_unstemmed Adsorption Equilibria of Basic Dyestuffs onto Maize Cob
title_short Adsorption Equilibria of Basic Dyestuffs onto Maize Cob
title_sort adsorption equilibria of basic dyestuffs onto maize cob
url https://doi.org/10.1177/026361749000700302
work_keys_str_mv AT mohammadselgeundi adsorptionequilibriaofbasicdyestuffsontomaizecob