Kinetic and equilibrium modelling of lead sorption from aqueous solution by activated carbon from goat dung
The potential of goat dung-derived activated carbon as an adsorbent for the removal of lead from aqueous solution in a batch system was studied. Physicochemical properties of the biosorbent were characterized by means of X-ray diffraction, scanning electron microscopy and Fourier transform infrared...
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| Language: | English |
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Taylor & Francis
2016
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| Online Access: | http://www.tandfonline.com/doi/abs/10.1080/19443994.2014.968217 http://hdl.handle.net/11408/1540 |
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| author | Moyo, Mambo Nyamhere, George Sebata, Edith Guyo, Upenyu |
| author_facet | Moyo, Mambo Nyamhere, George Sebata, Edith Guyo, Upenyu |
| author_sort | Moyo, Mambo |
| collection | DSpace |
| description | The potential of goat dung-derived activated carbon as an adsorbent for the removal of lead from aqueous solution in a batch system was studied. Physicochemical properties of the biosorbent were characterized by means of X-ray diffraction, scanning electron microscopy and Fourier transform infrared spectroscopy. Batch adsorption experiments were carried out as a function of pH, contact time, adsorbent dosage, initial concentration and temperature. The adsorption showed a pH dependent profile and an optimum value at pH 4.5. The adsorption isotherm modelling showed that the equilibrium data fitted better to the Freundlich than the Langmuir model. Kinetic data were properly fitted with the pseudo-second-order kinetic model. Furthermore, the thermodynamic parameters indicated that the adsorption reaction was endothermic and a spontaneous process. |
| format | Article |
| id | ir-11408-1540 |
| institution | My University |
| language | English |
| publishDate | 2016 |
| publisher | Taylor & Francis |
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| spelling | ir-11408-15402022-06-27T13:49:06Z Kinetic and equilibrium modelling of lead sorption from aqueous solution by activated carbon from goat dung Moyo, Mambo Nyamhere, George Sebata, Edith Guyo, Upenyu Lead, Goat dung, Adsorption, Isotherms, Kinetics, Thermodynamics The potential of goat dung-derived activated carbon as an adsorbent for the removal of lead from aqueous solution in a batch system was studied. Physicochemical properties of the biosorbent were characterized by means of X-ray diffraction, scanning electron microscopy and Fourier transform infrared spectroscopy. Batch adsorption experiments were carried out as a function of pH, contact time, adsorbent dosage, initial concentration and temperature. The adsorption showed a pH dependent profile and an optimum value at pH 4.5. The adsorption isotherm modelling showed that the equilibrium data fitted better to the Freundlich than the Langmuir model. Kinetic data were properly fitted with the pseudo-second-order kinetic model. Furthermore, the thermodynamic parameters indicated that the adsorption reaction was endothermic and a spontaneous process. 2016-06-09T12:14:14Z 2016-06-09T12:14:14Z 2014 Article 1944-3994 http://www.tandfonline.com/doi/abs/10.1080/19443994.2014.968217 http://hdl.handle.net/11408/1540 en Desalination and Water Treatment;p. 765-775 open Taylor & Francis |
| spellingShingle | Lead, Goat dung, Adsorption, Isotherms, Kinetics, Thermodynamics Moyo, Mambo Nyamhere, George Sebata, Edith Guyo, Upenyu Kinetic and equilibrium modelling of lead sorption from aqueous solution by activated carbon from goat dung |
| title | Kinetic and equilibrium modelling of lead sorption from aqueous solution by activated carbon from goat dung |
| title_full | Kinetic and equilibrium modelling of lead sorption from aqueous solution by activated carbon from goat dung |
| title_fullStr | Kinetic and equilibrium modelling of lead sorption from aqueous solution by activated carbon from goat dung |
| title_full_unstemmed | Kinetic and equilibrium modelling of lead sorption from aqueous solution by activated carbon from goat dung |
| title_short | Kinetic and equilibrium modelling of lead sorption from aqueous solution by activated carbon from goat dung |
| title_sort | kinetic and equilibrium modelling of lead sorption from aqueous solution by activated carbon from goat dung |
| topic | Lead, Goat dung, Adsorption, Isotherms, Kinetics, Thermodynamics |
| url | http://www.tandfonline.com/doi/abs/10.1080/19443994.2014.968217 http://hdl.handle.net/11408/1540 |
| work_keys_str_mv | AT moyomambo kineticandequilibriummodellingofleadsorptionfromaqueoussolutionbyactivatedcarbonfromgoatdung AT nyamheregeorge kineticandequilibriummodellingofleadsorptionfromaqueoussolutionbyactivatedcarbonfromgoatdung AT sebataedith kineticandequilibriummodellingofleadsorptionfromaqueoussolutionbyactivatedcarbonfromgoatdung AT guyoupenyu kineticandequilibriummodellingofleadsorptionfromaqueoussolutionbyactivatedcarbonfromgoatdung |