Biosorption of Pb(II) from aqueous solution using Rooibos shoot powder (RSP)
Rooibos (Aspalathus linearis) plants are cultivated for the production of the Rooibos tea. In this work, biosorption process of Pb(II) from aqueous solution on Rooibos shoot powder (RSP) was studied in a batch process. The effect of experimental parameters such as solution pH (2-9), contact time (30...
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Taylor & Francis
2016
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| Online Access: | http://hdl.handle.net/11408/1202 |
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| author | Kanu, Sheku Alfred Moyo, Mambo Zvinowanda, Caliphs Okonkwo, Jonathan |
| author_facet | Kanu, Sheku Alfred Moyo, Mambo Zvinowanda, Caliphs Okonkwo, Jonathan |
| author_sort | Kanu, Sheku Alfred |
| collection | DSpace |
| description | Rooibos (Aspalathus linearis) plants are cultivated for the production of the Rooibos tea. In this work, biosorption process of Pb(II) from aqueous solution on Rooibos shoot powder (RSP) was studied in a batch process. The effect of experimental parameters such as solution pH (2-9), contact time (30-180 min) and initial Pb(II) concentration (25-400 mg L-1), adsorbent dosage (0.2-2.1 g), and temperature (25-80 ”C) on biosorption process was examined. In an attempt to determine the biosorption capacity and rate of Pb(II) removal, isotherm and kinetic data were modeled using different equations. To this end, the biosorption process by RSP followed the Langmuir model for Pb(II) ions (R2 = 0.9907), with maximum monolayer adsorption capacity of 18.90 mg g-1. Kinetic data were properly fitted with the pseudo-second order kinetic model, and it can be seen that the calculated cjf (cal) value (11.31 mg g-1) agrees with the experimental value (12.80 mg g-1).
Furthermore, the biosorbent showed good removal of Pb(II) from industrial wastewaters. |
| format | Article |
| id | ir-11408-1202 |
| institution | My University |
| language | English |
| publishDate | 2016 |
| publisher | Taylor & Francis |
| record_format | dspace |
| spelling | ir-11408-12022022-06-27T13:49:06Z Biosorption of Pb(II) from aqueous solution using Rooibos shoot powder (RSP) Kanu, Sheku Alfred Moyo, Mambo Zvinowanda, Caliphs Okonkwo, Jonathan Biosorption; rooibos shoot powder; isotherm; kinetics; wastewater Rooibos (Aspalathus linearis) plants are cultivated for the production of the Rooibos tea. In this work, biosorption process of Pb(II) from aqueous solution on Rooibos shoot powder (RSP) was studied in a batch process. The effect of experimental parameters such as solution pH (2-9), contact time (30-180 min) and initial Pb(II) concentration (25-400 mg L-1), adsorbent dosage (0.2-2.1 g), and temperature (25-80 ”C) on biosorption process was examined. In an attempt to determine the biosorption capacity and rate of Pb(II) removal, isotherm and kinetic data were modeled using different equations. To this end, the biosorption process by RSP followed the Langmuir model for Pb(II) ions (R2 = 0.9907), with maximum monolayer adsorption capacity of 18.90 mg g-1. Kinetic data were properly fitted with the pseudo-second order kinetic model, and it can be seen that the calculated cjf (cal) value (11.31 mg g-1) agrees with the experimental value (12.80 mg g-1). Furthermore, the biosorbent showed good removal of Pb(II) from industrial wastewaters. 2016-05-04T13:34:41Z 2016-05-04T13:34:41Z 2015 Article 1944-3994 http://hdl.handle.net/11408/1202 en Desalination and Water Treatment;p1-9. open Taylor & Francis |
| spellingShingle | Biosorption; rooibos shoot powder; isotherm; kinetics; wastewater Kanu, Sheku Alfred Moyo, Mambo Zvinowanda, Caliphs Okonkwo, Jonathan Biosorption of Pb(II) from aqueous solution using Rooibos shoot powder (RSP) |
| title | Biosorption of Pb(II) from aqueous solution using Rooibos shoot powder (RSP) |
| title_full | Biosorption of Pb(II) from aqueous solution using Rooibos shoot powder (RSP) |
| title_fullStr | Biosorption of Pb(II) from aqueous solution using Rooibos shoot powder (RSP) |
| title_full_unstemmed | Biosorption of Pb(II) from aqueous solution using Rooibos shoot powder (RSP) |
| title_short | Biosorption of Pb(II) from aqueous solution using Rooibos shoot powder (RSP) |
| title_sort | biosorption of pb(ii) from aqueous solution using rooibos shoot powder (rsp) |
| topic | Biosorption; rooibos shoot powder; isotherm; kinetics; wastewater |
| url | http://hdl.handle.net/11408/1202 |
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