doi: 10.18178/ijesd.2016.7.11.881
Biosorption of Cr(VI) and Cu(II) by Palm Kernel Powder and Its Potential Application
Ragwan Mohamed1
, ,
- 1Chemistry
- 2the Department of Environmental Science
Abstract
In this research, palm kernel powder (PKP) wasutilized as a bioadsorbent for the removal of Cr(VI) and Cu(II)ions from aqueous solutions. Batch studies were preformed toevaluate the effect of various experimental parameters on Cr(VI)and Cu(II) adsorption onto PKP. The adsorption equilibriumwas reached after 70 min. The adsorption capacity of Cr(VI)and Cu(II) was pH-dependent showing a maximum atequilibrium pH 2 and 5, respectively. The percentage removal ofheavy metals by PKP varied in order unmodifiedadsorbents>HNO3>H3PO4. The adsorption isotherm andkinetics of Cr(VI) and Cu(II) were also investigated usingLangmuir and Freundlich adsorption isotherm models andpseudo-first order (LSO) and pseudo-second-order (PSO)kinetic models. The data was better described by Freundlichadsorption isotherm model and PSO kinetics in theconcentration range studied. For environmental study, it wasfound that the adsorption capacity for heavy metals decreased inthe raw waste water sample in comparison with the syntheticwaste water system.
Keywords
- Biosorption
- chromium
- copper
- kinetics
- palm kernel powder
How to Cite
Ragwan Mohamed, Alaa Mustafa, and Mohamed Erhayem, "Biosorption of Cr(VI) and Cu(II) by Palm Kernel Powder and Its Potential Application," International Journal of Environmental Science and Development, vol. 7, no. 11, pp. 788-792, 2016. https://doi.org/10.18178/ijesd.2016.7.11.881
Copyright & License
Copyright © 2016 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).