Academic Journal
Hydroxyapatite and bone particle-doped ceramic water filters for the removal of fluoride and bacteria
| العنوان: | Hydroxyapatite and bone particle-doped ceramic water filters for the removal of fluoride and bacteria |
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| المؤلفون: | Oluwole A. Omoniyi, Ali A. Salifu, John D. Obayemi, Oluwaseun K. Oyewole, Pierre-Marie Nigay, Omololu Akin-Ojo, Winston O. Soboyejo |
| المصدر: | Cogent Engineering, Vol 9, Iss 1 (2022) |
| بيانات النشر: | Taylor & Francis Group, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Engineering (General). Civil engineering (General) |
| مصطلحات موضوعية: | ceramic water filters, hydroxyapatite and bone particle doping, fluoride and microbial removal, contaminated groundwater, Engineering (General). Civil engineering (General), TA1-2040 |
| الوصف: | This paper examines the effects of hydroxyapatite (HA) and bone-particle (BP) doping on the removal of fluoride and bacteria by ceramic water filters (CWFs). The CWFs were produced by mixing clay, sieved sawdust, and either HA or BPs in a weight ratio of 30:50:20 and sintered at 850°C or 900°C to produce micro-/nano-porous structures that remove microbial pathogens (by geometric occlusion) and fluoride (by adsorption) from contaminated water. The HA-doped filters exhibited similar flow characteristics to the BP-doped filters. However, BP-doped CWFs were more effective in removing fluoride and microbial pathogens (such as E. coli) from contaminated water than HA-doped filters. The water flow rates and fluoride removal depended on sintering temperature, with CWFs sintered at 850°C enabling faster flow rates of 2.2Lh−1 and higher fluoride removal of 2.74 mol.cm−2 than the CWFs sintered at 900°C. Fluoride removal by the HA- and BP-doped filters was well characterized by Freundlich isotherms that reveal the occurrence of spontaneous but heterogeneous adsorption. The implications of the results are discussed for the design of point-of-use CWFs for the removal of fluoride and microbial pathogens. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2331-1916 23311916 |
| Relation: | https://doaj.org/toc/2331-1916 |
| DOI: | 10.1080/23311916.2021.2006112 |
| URL الوصول: | https://doaj.org/article/8002c47880a64ea1af0802214067d3f5 |
| رقم الانضمام: | edsdoj.8002c47880a64ea1af0802214067d3f5 |
| قاعدة البيانات: | Directory of Open Access Journals |
| تدمد: | 23311916 |
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| DOI: | 10.1080/23311916.2021.2006112 |