Comparison of the defluoridation capacity of zeolites from Ethiopia and Mexico
Fluorosis, either dental or skeleton, is often due to the high fluoride content of well waters. In this work, using solutions which contain different amounts of fluoride, natural zeolites from Ethiopia and Mexico were tested. It is shown that, although zeolites are known to be cationic exchangers, t...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Chemical Society of Ethiopia
2015-01-01
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| Series: | Bulletin of the Chemical Society of Ethiopia |
| Subjects: | |
| Online Access: | http://www.ajol.info/index.php/bcse/article/view/111466 |
| Summary: | Fluorosis, either dental or skeleton, is often due to the high fluoride content of well waters. In this work, using solutions which contain different amounts of fluoride, natural zeolites from Ethiopia and Mexico were tested. It is shown that, although zeolites are known to be cationic exchangers, their extra-framework aluminum and their high calcium contents determine their performance. A mechanism involving adsorption and ion exchange is proposed. DOI: http://dx.doi.org/10.4314/bcse.v29i1.5 |
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| ISSN: | 1011-3924 1726-801X |