<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>The potential of burned water hyacinth (BWH) for phenol adsorption from aqueous solution was studied. Batch kinetic and isotherm studies were carried out under varying experimental conditions of contact time, phenol concentration, adsorbent dosage and pH. The pH at the point of zero charge (pH<sub>PZC</sub>) of the adsorbent was determined by the titration method and the value of 8.8 ± 0.2 was obtained. The FTIR of the adsorbent was carried out in order to find the potential adsorption sites for the interaction with phenol molecules. The Freundlich and Langmuir adsorption models were used for the mathematical description of adsorption equilibrium and it was found that the experimental data fitted very well to the Langmuir model. Maximum adsorption capacity of the adsorbent was found to be 30.49 mg/g. Batch adsorption models, based on the assumption of the pseudo-first-order and pseudo-second-order models, were applied to examine the kinetics of the adsorption. The results showed that kinetic data closely followed the pseudo-second-order model.</p></abstract>

The potential of burned water hyacinth (BWH) for phenol adsorption from aqueous solution was studied. Batch kinetic and isotherm studies were carried out under varying experimental conditions of contact time, phenol concentration, adsorbent dosage and pH. The pH at the point of zero charge (pHPZC) of the adsorbent was determined by the titration method and the value of 8.8 ± 0.2 was obtained. The FTIR of the adsorbent was carried out in order to find the potential adsorption sites for the interaction with phenol molecules. The Freundlich and Langmuir adsorption models were used for the mathematical description of adsorption equilibrium and it was found that the experimental data fitted very well to the Langmuir model. Maximum adsorption capacity of the adsorbent was found to be 30.49 mg/g. Batch adsorption models, based on the assumption of the pseudo-first-order and pseudo-second-order models, were applied to examine the kinetics of the adsorption. The results showed that kinetic data closely followed the pseudo-second-order model.

Uptake of phenol from aqueous solution by burned water hyacinth

Department of Chemical Engineering & Polymer Science, Shahjalal University of Science & Technology, Sylhet-3114, Bangladesh

Polish Journal of Chemical Technology

{"article-title":"Uptake of phenol from aqueous solution by burned water hyacinth"}

The potential of burned water hyacinth (BWH) for phenol adsorption from aqueous solution was studied. Batch kinetic and isotherm studies were carried out under...

Uptake of phenol from aqueous solution by burned water hyacinth

Published Online: Jul 02, 2008

Page range: 43 - 49

DOI: https://doi.org/10.2478/v10026-008-0027-1

Keywords
Phenol, Adsorption, Burned water hyacinth, Equilibrium, Adsorption Kinetics

This content is open access.

Uptake of phenol from aqueous solution by burned water hyacinth

Published Online: Jul 02, 2008

Page range: 43 - 49

DOI: https://doi.org/10.2478/v10026-008-0027-1

KeywordsPhenol, Adsorption, Burned water hyacinth, Equilibrium, Adsorption Kinetics

This content is open access.

Keywords
Phenol, Adsorption, Burned water hyacinth, Equilibrium, Adsorption Kinetics