Optimization of the Lead Adsorption Process with Modified Chitosan for being used in the Treatment of Water
In this study, chitosan extracted from Penaeus Vannamei shrimp was modified to prepare two adsorbent materials: chitosan-glutaralaldehyde (QGD) and chitosan-ferric nitrate (QFe). Effects of the pH, dosage of adsorbent, stirring speed, temperature and contact time were evaluated. The best lead adsorp...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2011 |
| País: | Ecuador |
| Institución: | Universidad Central del Ecuador |
| Repositorio: | Revista Química central |
| Idioma: | español |
| OAI Identifier: | oai:revistadigital.uce.edu.ec:article/542 |
| Acceso en línea: | https://revistadigital.uce.edu.ec/index.php/QUIMICA/article/view/542 |
| Access Level: | acceso abierto |
| Palabra clave: | Quitina quitosano quitosano-glutaraldehído quitosano-hierro adsorción plomo Chitosan chitin chitosan-glutaraldehyde chitosan-iron adsorption lead |
| Sumario: | In this study, chitosan extracted from Penaeus Vannamei shrimp was modified to prepare two adsorbent materials: chitosan-glutaralaldehyde (QGD) and chitosan-ferric nitrate (QFe). Effects of the pH, dosage of adsorbent, stirring speed, temperature and contact time were evaluated. The best lead adsorption was found to occur onto QGD at pH 6,75-7,00; dosage of adsorbent 0,35-0,50g and time of contact 151-175min. The efficiency of lead remotion with QGD was 98,40% and the isothermal study of adsorptive capacity showed an absorption of 282,61mg of Pb2+ per g of QGD. |
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