Adsorption of cadmium from aqueous solution using Rooibos shoots as adsorbent
The use of Rooibos shoots, a natural adsorbent, for cadmium removal from wastewater is proposed. The effects of initial pH, adsorbent dosage, contact time, and initial concentration were investigated in the batch adsorption mode. The optimum pH was found to be 5.5. Isotherm and kinetic data were mod...
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| Format: | Article |
| Language: | English |
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Taylor & Francis
2016
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| Online Access: | http://hdl.handle.net/11408/1545 |
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| _version_ | 1779905262043267072 |
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| author | Kanu, Sheku A. Moyo, Mambo Khamlichb, Saleh Okonkwoa, Jonathan O. |
| author_facet | Kanu, Sheku A. Moyo, Mambo Khamlichb, Saleh Okonkwoa, Jonathan O. |
| author_sort | Kanu, Sheku A. |
| collection | DSpace |
| description | The use of Rooibos shoots, a natural adsorbent, for cadmium removal from wastewater is proposed. The effects of initial pH, adsorbent dosage, contact time, and initial concentration were investigated in the batch adsorption mode. The optimum pH was found to be 5.5. Isotherm and kinetic data were modeled; the data fitted best to the Freundlich model, and, kinetically, the adsorption was of pseudo-second order as shown by the high R2 value of 0.9928 along with close agreement between the experimental qe (13.9 mg g−1) and calculated qe (14.24 mg g−1) values. The studied biomass material was found to be effectively used for removal of cadmium from contaminated mine wastewater. |
| format | Article |
| id | ir-11408-1545 |
| institution | My University |
| language | English |
| publishDate | 2016 |
| publisher | Taylor & Francis |
| record_format | dspace |
| spelling | ir-11408-15452022-06-27T13:49:06Z Adsorption of cadmium from aqueous solution using Rooibos shoots as adsorbent Kanu, Sheku A. Moyo, Mambo Khamlichb, Saleh Okonkwoa, Jonathan O. Rooibos shoots, adsorption, cadmium, isotherm, kinetics The use of Rooibos shoots, a natural adsorbent, for cadmium removal from wastewater is proposed. The effects of initial pH, adsorbent dosage, contact time, and initial concentration were investigated in the batch adsorption mode. The optimum pH was found to be 5.5. Isotherm and kinetic data were modeled; the data fitted best to the Freundlich model, and, kinetically, the adsorption was of pseudo-second order as shown by the high R2 value of 0.9928 along with close agreement between the experimental qe (13.9 mg g−1) and calculated qe (14.24 mg g−1) values. The studied biomass material was found to be effectively used for removal of cadmium from contaminated mine wastewater. 2016-06-09T14:27:05Z 2016-06-09T14:27:05Z 2015 Article 0277-2248 ww.tandfonline.com/doi/abs/10.1080/02772248.2015.1030666 http://hdl.handle.net/11408/1545 en Toxicological and Environmental Chemistry;Vol. 96, No.10; p.1452-1462 open Taylor & Francis |
| spellingShingle | Rooibos shoots, adsorption, cadmium, isotherm, kinetics Kanu, Sheku A. Moyo, Mambo Khamlichb, Saleh Okonkwoa, Jonathan O. Adsorption of cadmium from aqueous solution using Rooibos shoots as adsorbent |
| title | Adsorption of cadmium from aqueous solution using Rooibos shoots as adsorbent |
| title_full | Adsorption of cadmium from aqueous solution using Rooibos shoots as adsorbent |
| title_fullStr | Adsorption of cadmium from aqueous solution using Rooibos shoots as adsorbent |
| title_full_unstemmed | Adsorption of cadmium from aqueous solution using Rooibos shoots as adsorbent |
| title_short | Adsorption of cadmium from aqueous solution using Rooibos shoots as adsorbent |
| title_sort | adsorption of cadmium from aqueous solution using rooibos shoots as adsorbent |
| topic | Rooibos shoots, adsorption, cadmium, isotherm, kinetics |
| url | http://hdl.handle.net/11408/1545 |
| work_keys_str_mv | AT kanushekua adsorptionofcadmiumfromaqueoussolutionusingrooibosshootsasadsorbent AT moyomambo adsorptionofcadmiumfromaqueoussolutionusingrooibosshootsasadsorbent AT khamlichbsaleh adsorptionofcadmiumfromaqueoussolutionusingrooibosshootsasadsorbent AT okonkwoajonathano adsorptionofcadmiumfromaqueoussolutionusingrooibosshootsasadsorbent |