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http://dspace.udla.edu.ec/handle/33000/12396| Tipo de material : | bachelorThesis |
| Título : | Revisión comparativa de datos experimentales sobre la electrocoagulación y la fotocatálisis con TIO2 como alternativa al tratamiento de aguas residuales |
| Autor : | Núñez Endara, Erika Dominique |
| Tutor : | Sigcha Terán, Viviana Pavlova |
| Palabras clave : | CONTAMINANTES AMBIENTALES;AGUAS RESIDUALES;TRATAMIENTO DEL AGUA;CALIDAD DEL AGUA;ELECTROCOAGULACIÓN;FOTOCATÁLISIS |
| Fecha de publicación : | 2020 |
| Editorial : | Quito: Universidad de las Américas, 2020 |
| Citación : | Núñez, E. (2020). Revisión comparativa de datos experimentales sobre la electrocoagulación y la fotocatálisis con TIO2 como alternativa al tratamiento de aguas residuales (Tesis de pregrado). Universidad de las Américas, Quito. |
| Resumen : | El presente estudio se ha desarrollado para realizar la comparación entre la electrocoagulación y la fotocatálisis con dióxido de titanio “TiO2” como alternativas para el tratamiento de aguas residuales de origen textil... |
| Descripción : | The present study has been developed to make the comparison between electrocoagulation and photocatalysis with titanium dioxide (TiO2) as alternatives for the treatment of textile wastewater. To carry out this research, the mechanisms of action of the two technologies used in the treatment of textile effluents were studied. On the one hand, electrocoagulation is characterized by forming coagulants in situ from an oxidation reaction, by applying an electrical current to the waste water in order to destabilize the contaminants present and according to their specific weight, in relation to that of water. , promote their separation from the effluent and remove them by flotation or sedimentation. On the other hand, heterogeneous photocatalysis is an advanced oxidation process (POA), in which semiconductor materials such as TiO2 are used, which when irradiated by a UV light source, adsorb the pollutants present in the water and form radicals hydroxyls that facilitate their degradation. Once the mechanisms of action of each technology had been described, the study focused on the analysis of experimental data collected from six investigations by different authors, which used these technologies as treatment of effluents from the textile industry, and the removal percentages were compared. obtained according to the operating parameters used. As results, it was evidenced that electrocoagulation with iron electrodes in monopolar configuration, under the optimal conditions of: pH of 5.5, an operation time of 80 minutes and a current density of 65 A / m2, could remove TOC, COD and turbidity at 76 percent, 85 percent, and 95 percent, respectively. Likewise, the operating conditions for the heterogeneous photocatalysis process with TiO2 showed that when using the crystalline form of titanium dioxide (Desgussa P25), under the optimal operating conditions of: pH of 2.5, catalyst concentration of 0, 4 g / L, under artificial light during an irradiation time of 4 hours, a COD removal efficiency of 78 percent was obtained. The study concludes that the application of the two technologies is efficient to treat this type of effluent and remove color or organic matter; Similarly, it is concluded that factors such as the addition of oxidizing agents, in the case of heterogeneous photocatalysis with TiO2, or the combination with adsorption methods in the case of electrocoagulation, represented an optimization in the processes as coadjuvant factors in the better obtaining better results. |
| URI : | http://dspace.udla.edu.ec/handle/33000/12396 |
| Aparece en las colecciones: | Ingeniería Ambiental en Prevención y Remediación |
Ficheros en este ítem:
| Fichero | Descripción | Tamaño | Formato | |
|---|---|---|---|---|
| UDLA-EC-TIAM-2020-30.pdf | 1,84 MB | Adobe PDF | Visualizar/Abrir |
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