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| Campo DC | Valor | Lengua/Idioma |
|---|---|---|
| dc.contributor.advisor | Sigcha Terán, Viviana Pavlova | - |
| dc.creator | Chávez Bedoya, Erika Pamela | - |
| dc.date.accessioned | 2019-03-26T00:11:34Z | - |
| dc.date.available | 2019-03-26T00:11:34Z | - |
| dc.date.issued | 2019 | - |
| dc.identifier.citation | Chávez Bedoya, Erika Pamela, E. P. (2019). Evaluación de la fotocatálisis heterogénea con tio2 y tio2+cdotspara la reducción de tensoactivos en aguas residuales provenientes de la industria textil (Tesis de pregrado). Universidad de las Américas, Quito. | es_ES |
| dc.identifier.other | UDLA-EC-TIAM-2019-02 | - |
| dc.identifier.uri | http://dspace.udla.edu.ec/handle/33000/10593 | - |
| dc.description | In the present work, the effectiveness of heterogeneous photocatalysis to remove surfactants present in wastewater from textile industry is evaluated. The water samples were taken from the discharges made by Textiles RECALEX after a coagulation-flocculation treatment. These samples were characterized before and after applying the treatments. For this, the following parameters were considered: pH, conductivity, chemical oxygen demand (COD), oxide-reduction potential, turbidity, absorbance and surfactants. For the evaluation of surfactants, the analyzes of the two groups most consumed worldwide were considered: anionic and nonionic surfactants. Two types of catalysts were used: TiO2 of technical grade and TiO2 doped with carbon dots, to evaluate if the latter affects the percentage of removal. The catalyst concentrations were 1 and 3 grams. To obtain carbon points, citric acid was used as a precursor and the microwave method was used for doping TiO2. An experimental design was used 22. The analysis of results is presented in a descriptive and statistical way. The statistical part corresponds to a complete factorial design analysis where an analysis of variances is carried out and an analysis of effects expressed in a Pareto and cubes diagram. For anionic surfactants, the best result was reached with 3g of TiO2 and 1g of TiO2 plus Cdots reaching 99.15 percent removal in both cases. In non-ionic surfactants, the best result was reached with 3g of TiO2 plus Cdots reaching 70 percent removal. The effect of adding an oxidant to the process was also evaluated. For this, 0.6ml of H2O2 was added to each treatment. For anionic surfactants, the result was the same as without the use of the oxidant. In non-ionic surfactants, the best result was reached with 3g of TiO2 plus Cdots reaching 85 percent removal. Finally concluding that this process is effective not only for the reduction of surfactants but also to remove organic matter and color. | en |
| dc.description.abstract | En el presente trabajo se evalúa la efectividad que tiene la fotocatálisis heterogénea para remover tensoactivos presentes en las aguas residuales provenientes de la industria textil… | es_ES |
| dc.format.extent | 125 p. | es_ES |
| dc.language.iso | spa | es_ES |
| dc.publisher | Quito: Universidad de las Américas, 2019 | es_ES |
| dc.rights | openAccess | es_ES |
| dc.subject | INDUSTRIA TEXTIL | es_ES |
| dc.subject | ABSORCIÓN DE LA LUZ | es_ES |
| dc.subject | INGENIERÍA AMBIENTAL | es_ES |
| dc.subject | INGENIERÍA QUÍMICA | es_ES |
| dc.title | Evaluación de la fotocatálisis heterogénea con TiO2 y TiO2+cdotspara la reducción de tensoactivos en aguas residuales provenientes de la industria textil | es_ES |
| dc.type | bachelorThesis | es_ES |
| Aparece en las colecciones: | Ingeniería Ambiental en Prevención y Remediación | |
Ficheros en este ítem:
| Fichero | Descripción | Tamaño | Formato | |
|---|---|---|---|---|
| UDLA-EC-TIAM-2019-02.pdf | 2,18 MB | Adobe PDF | Visualizar/Abrir |
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