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Synthesis and performance evaluation of Moringa Oleifera seed coat biosorbent for carbamazepine adsorption from model wastewater
Dissertation (MEng (Chemical Engineering))--University of Pretoria, 2025.
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| Format: | Thesis |
| Language: | English |
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University of Pretoria
2025
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| _version_ | 1867613553656070144 |
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| access_status_str | Open Access |
| author2 | Daramola, Michael Olawale |
| author_browse | Daramola, Michael Olawale |
| author_facet | Daramola, Michael Olawale |
| collection | Thesis |
| dc_rights_str_mv | © 2024 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Dissertation (MEng (Chemical Engineering))--University of Pretoria, 2025. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/107261 |
| institution | University of Pretoria (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:37:58.997Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/107261 Synthesis and performance evaluation of Moringa Oleifera seed coat biosorbent for carbamazepine adsorption from model wastewater Daramola, Michael Olawale peaceazeh@gmail.com Jimoh, Monsurat O. Iwarere, Samuel Ayodele Azeh, Peace S. UCTD Sustainable Development Goals (SDGs) Adsorption Moringa Oleifera Carbamazepine Biochar Statistical analysis Dissertation (MEng (Chemical Engineering))--University of Pretoria, 2025. This study investigates biochar produced from discarded Moringa oleifera seed coats as a low-cost, sustainable biosorbent for removing the persistent pharmaceutical pollutant carbamazepine (CBZ) from water. The seed coats were chemically activated with phosphoric acid and carbonised at 600 °C, producing a meso- and microporous biochar with a high surface area (237.3 m²/g), abundant functional groups, increased graphitisation, and enhanced thermal stability, as confirmed by FTIR, SEM/EDX, BET, XRD, TGA, and elemental analyses; alternative pretreatments showed no performance improvement. Batch adsorption experiments demonstrated excellent CBZ removal (93.32% at 50 ppm), with agitation speed identified as the most significant operational parameter via response surface methodology using a Box–Behnken design. The optimised conditions (400 rpm, 30 °C, 2.15 h) yielded an experimental adsorption capacity of 51.09 mg/g, closely matching model predictions. Kinetic analysis showed that adsorption followed a pseudo-second-order model, indicating chemisorption, while the Temkin isotherm best described equilibrium behaviour. Overall, the results confirm Moringa oleifera seed coat biochar as a promising green adsorbent for pharmaceutical removal in wastewater, supporting circular economy principles and warranting further evaluation in real wastewater systems. MasterCard Foundation Scholarship Chemical Engineering MEng (Chemical Engineering) Unrestricted Faculty of Engineering, Built Environment and Information Technology SDG-06: Clean water and sanitation SDG-12: Responsible consumption and production SDG-14: Life below water 2025-12-17T09:28:57Z 2025-12-17T09:28:57Z 2026-04 2025-12-09 Dissertation * A2026 http://hdl.handle.net/2263/107261 10.25403/UPresearchdata.30901649 en © 2024 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf University of Pretoria |
| spellingShingle | UCTD Sustainable Development Goals (SDGs) Adsorption Moringa Oleifera Carbamazepine Biochar Statistical analysis Synthesis and performance evaluation of Moringa Oleifera seed coat biosorbent for carbamazepine adsorption from model wastewater |
| title | Synthesis and performance evaluation of Moringa Oleifera seed coat biosorbent for carbamazepine adsorption from model wastewater |
| title_full | Synthesis and performance evaluation of Moringa Oleifera seed coat biosorbent for carbamazepine adsorption from model wastewater |
| title_fullStr | Synthesis and performance evaluation of Moringa Oleifera seed coat biosorbent for carbamazepine adsorption from model wastewater |
| title_full_unstemmed | Synthesis and performance evaluation of Moringa Oleifera seed coat biosorbent for carbamazepine adsorption from model wastewater |
| title_short | Synthesis and performance evaluation of Moringa Oleifera seed coat biosorbent for carbamazepine adsorption from model wastewater |
| title_sort | synthesis and performance evaluation of moringa oleifera seed coat biosorbent for carbamazepine adsorption from model wastewater |
| topic | UCTD Sustainable Development Goals (SDGs) Adsorption Moringa Oleifera Carbamazepine Biochar Statistical analysis |
| url | http://hdl.handle.net/2263/107261 |