Effects of operational conditions on the performance of a partial nitritation SBR treating high nitrogen loads
- Autores: Jordi Gabarró i Bartual
- Directores de la Tesis: Maël Ruscalleda Beylier (dir. tes.), Jesús Colprim Galcerán (dir. tes.), Maria Dolors Balaguer Condom (dir. tes.)
- Lectura: En la Universitat de Girona ( España ) en 2014
- Idioma: inglés
- Tribunal Calificador de la Tesis: Mathieu Sperandio (presid.), Maite Serrano Vilalta (secret.), Sonia Suárez Martínez (voc.)
- Materias:
- Enlaces
- Tesis en acceso abierto en: TDX
- Resumen
The biological treatment of industrial wastewater containing high nitrogen concentrations (>1000 mg N L-1) and low biodegradable organic matter (bCOD) such as landfill leachate is nowadays challenging. Conventional nitrification-denitrification of such wastewater implies high operational costs associated with aeration requirements and external bCOD supply. Partial nitritation (PN) combined with anaerobic ammonium oxidation (anammox) has become a more sustainable alternative treatment of this kind of industrial wastewaters.The research presented in this thesis involves changes on operational parameters such as aeration phases length and operational temperature decrease in a PN sequencing batch reactor (PN-SBR) treating mature landfill leachate to reduce energy requirements. The PN-SBR startup and operation was assessed at fully aerobic conditions at 25 and 35oC as well as the implementation of anoxic feedings to promote heterotrophic denitrification via NO2-at 35oC.Successful demonstration of the PN process robustness was achieved despite changing operational temperature or the inclusion of anoxic feedings
