Estudio isotérmico de biosorción de cadmio en solución acuosa empleando perlas de alginato con Chlorella sp. inmovilizada
he pollution of water sources by heavy metals has grown proportionally to the rise of industrialization, so solutions have been sought with innovative techniques for the elimination of such pollutants, such as the use of microalgae. In this work is shown the isothermal study of cadmium biosorption i...
| Autor Principal: | Carrasco Carrasco, Andrea Jacqueline |
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| Formato: | bachelorThesis |
| Idioma: | spa |
| Publicado: |
2018
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| Materias: | |
| Acceso en línea: |
http://dspace.ups.edu.ec/handle/123456789/15821 |
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| Sumario: |
he pollution of water sources by heavy metals has grown proportionally to the rise of industrialization, so solutions have been sought with innovative techniques for the elimination of such pollutants, such as the use of microalgae. In this work is shown the isothermal study of cadmium biosorption in solution using the microalga Chlorella sp. immobilized in alginate beads. For this the optimal conditions of removal were determined: contact time, pH, cellular concentration of Chlorella sp. and concentration of the adsorbed metal. The experimental data of the bioadsorption of Cd with the treatment of alginate beads with Chlorella sp. it adapted favorably to the Langmuir model obtaining a maximum concentration of Cd retention (qm) of 5,640 mg per gram of cotton pearl with Chlorella sp. immobilized (biosorbent), an optimal time of 223 minutes at pH 5 (optimum pH) while for the treatment of alginate beads without Chlorella sp., the experimental data of the Cd bioadsorption adjusted favorably to the two Langmuir models and Freundlich, with a qm of 5.356 mg per gram of alginate bead (biosorbent). The two treatments can be used for bioremediation processes with cadmium. However, it is expected that the cellular concentration of Chlorella sp. In the pearls, the removal of metal can be increased, using successfully in cadmium removal treatments. |
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