Santiago-Morales, J. (2013) Ozonation and irradiation treatments for the removal of emerging water pollutants. PhD thesis, Universidad de Alcalá.
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Abstract
This thesis work aims the evaluation of several ozonation and irradiation based treatments for the removal of emerging pollutants. The degradation and transformation products of several polar, semipolar and non-polar compounds have been investigated. The research included a kinetic study of pollutant depletion, the identification of oxidation transformation products and the energetic and ecotoxicological assessment of the removal processes in order to identify efficient technologies. The studied pollutants were effectively removed by most treatments but in general ozonation was more effective than irradiation processes. Among the latter, the photocatalysis using cerium-doped TiO2 was the process requiring the least amount of energy to remove the same amount of micropollutants. Neither ozonation nor irradiation treatments led to a complete mineralization of the organic compounds with the consequent accumulation of oxidation TP, most of which proceeded from the addition of hydroxyl groups or from ring-opening reactions of aromatic compounds. Concerning toxicity, it generally decreased during the ozonation but got enhanced during irradiation processes. However, a certain toxicity increase was observed in most treatments for a certain dosage of oxidant or irradiation. Prolonged treatments did not provide substantial advantages in terms of toxicity decrease, but processes using combined sources of hydroxyl radicals allowed the removal of more TP and could reach higher toxicity reductions.
| Item Type: | Thesis (PhD) |
|---|---|
| Additional Information: | Autor/a Santiago Morales, Javier Departamento Química Analítica e Ingeniería Química Director/a Rosal García, Roberto Fecha de defensa 27/09/2013 Calificación Sobresaliente Cum Laude Programa Doctorado en Hidrología y Gestión de los Recursos Hídricos (RD 1393/2007) Mención internacional Si |
| Subjects: | Q Science > QD Chemistry T Technology > TD Environmental technology. Sanitary engineering T Technology > TP Chemical technology |
| Depositing User: | José Ángel Gómez Martín |
| Date Deposited: | 13 Dec 2013 11:07 |
| Last Modified: | 09 Feb 2023 16:37 |
| URI: | http://eprints.imdea-agua.org:13000/id/eprint/369 |
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