Removal of Phenol from Aqueous Solution onto Modified Fly Ash
Journal Title: International Journal of Research in Chemistry and Environment (IJRCE) - Year 2012, Vol 2, Issue 2
Abstract
The purpose of this study was to investigate the possibility of the utilization of coal fly ash as a low cost adsorbent. Experiments were conducted to evaluate the removal of phenol from aqueous solution by fly ash under various conditions of contact time, pH and temperature. The influence of pH on the phenol uptake by the fly ash was carried our between pH4 and pH9. The level of uptake of phenol by fly ash increased at higher pH value. The effect of temperature on the uptake of phenol was carried out between 30 and 550C. The result indicates that adsorption increases at low temperature. This study revealed that citric acid modification of fly ash surface enhances adsorption process. The distribution coefficient of phenol for modified and unmodified fly ash were 1.580 and 0.995, respectively. The adsorption data were best fitted for Freundlich adsorption model than Langmuir model
Authors and Affiliations
Alinnor I. J. , Nwachukwu M. A.
Keywords
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