Adsorption of anionic dye (Reactive black 5) using macadamia seed Husks: Kinetics and equilibrium studies
Adsorption of Reactive black 5 dye currently used in textile industries was investigated using Macadamia Seed Husks (MSH) from a local Macadamia nut processing industry. Adsorption increased with increase in contact time, adsorbent dose and dye concentration. Conversely, the percentage dye adsorbed...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2020-03-01
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| Series: | Scientific African |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468227620300211 |
| _version_ | 1819199702669721600 |
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| author | Mutunga M. Felista Wycliffe C. Wanyonyi Gilbert Ongera |
| author_facet | Mutunga M. Felista Wycliffe C. Wanyonyi Gilbert Ongera |
| author_sort | Mutunga M. Felista |
| collection | DOAJ |
| description | Adsorption of Reactive black 5 dye currently used in textile industries was investigated using Macadamia Seed Husks (MSH) from a local Macadamia nut processing industry. Adsorption increased with increase in contact time, adsorbent dose and dye concentration. Conversely, the percentage dye adsorbed decreased with increase of solution pH and size of MSH particles. Sorption increased with an increase in temperature signaling an endothermic process. Batch adsorption data best fitted to Freundlich adsorption isotherm model with Kf value of 4.20679 and n = 2.3375. The adsorption kinetics followed a pseudo-second-order kinetic model with high correlation coefficients (R2 > 0.98). These results demonstrated that MSH is an environmentally friendly, locally available, effective and economical adsorbent for the removal of RB5 dye from industrial wastewaters. Keywords: Macadamia seed Husks, Reactive black 5, Adsorption, Kinetics, Equilibrium |
| first_indexed | 2024-12-23T03:20:32Z |
| format | Article |
| id | doaj.art-f603df7e430f47d485e7532a2c945a5f |
| institution | Directory Open Access Journal |
| issn | 2468-2276 |
| language | English |
| last_indexed | 2024-12-23T03:20:32Z |
| publishDate | 2020-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Scientific African |
| spelling | doaj.art-f603df7e430f47d485e7532a2c945a5f2022-12-21T18:02:01ZengElsevierScientific African2468-22762020-03-017Adsorption of anionic dye (Reactive black 5) using macadamia seed Husks: Kinetics and equilibrium studiesMutunga M. Felista0Wycliffe C. Wanyonyi1Gilbert Ongera2Department of Physical Sciences, School of Science and Technology, University of Kabianga, P.O. Box 2030-20200-Kericho, KenyaCorresponding author.; Department of Physical Sciences, School of Science and Technology, University of Kabianga, P.O. Box 2030-20200-Kericho, KenyaDepartment of Physical Sciences, School of Science and Technology, University of Kabianga, P.O. Box 2030-20200-Kericho, KenyaAdsorption of Reactive black 5 dye currently used in textile industries was investigated using Macadamia Seed Husks (MSH) from a local Macadamia nut processing industry. Adsorption increased with increase in contact time, adsorbent dose and dye concentration. Conversely, the percentage dye adsorbed decreased with increase of solution pH and size of MSH particles. Sorption increased with an increase in temperature signaling an endothermic process. Batch adsorption data best fitted to Freundlich adsorption isotherm model with Kf value of 4.20679 and n = 2.3375. The adsorption kinetics followed a pseudo-second-order kinetic model with high correlation coefficients (R2 > 0.98). These results demonstrated that MSH is an environmentally friendly, locally available, effective and economical adsorbent for the removal of RB5 dye from industrial wastewaters. Keywords: Macadamia seed Husks, Reactive black 5, Adsorption, Kinetics, Equilibriumhttp://www.sciencedirect.com/science/article/pii/S2468227620300211 |
| spellingShingle | Mutunga M. Felista Wycliffe C. Wanyonyi Gilbert Ongera Adsorption of anionic dye (Reactive black 5) using macadamia seed Husks: Kinetics and equilibrium studies Scientific African |
| title | Adsorption of anionic dye (Reactive black 5) using macadamia seed Husks: Kinetics and equilibrium studies |
| title_full | Adsorption of anionic dye (Reactive black 5) using macadamia seed Husks: Kinetics and equilibrium studies |
| title_fullStr | Adsorption of anionic dye (Reactive black 5) using macadamia seed Husks: Kinetics and equilibrium studies |
| title_full_unstemmed | Adsorption of anionic dye (Reactive black 5) using macadamia seed Husks: Kinetics and equilibrium studies |
| title_short | Adsorption of anionic dye (Reactive black 5) using macadamia seed Husks: Kinetics and equilibrium studies |
| title_sort | adsorption of anionic dye reactive black 5 using macadamia seed husks kinetics and equilibrium studies |
| url | http://www.sciencedirect.com/science/article/pii/S2468227620300211 |
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