Abatement of siloxanes in sewage biogas: coupling adsorption and biological treatments 

    Santos Clotas, Eric (Date of defense: 2019-11-08)

    The anaerobic digestion of organic matter causes the formation of biogas that can be used in energy conversion systems for the production of electricity and heat, injection into the gas grid or as a fuel. However, biogas ...

    Adsorbentes preparados a partir de residuos y su aplicación en la eliminación de compuestos causantes de olores (NH3 y H2S) 

    Canals Batlle, Carla (Date of defense: 2012-11-30)

    This thesis is focused on two environmental issues. The first one is the recovery of different wastes, such as sewage sludge and fly ashes, and the second one is related to the removal of odour causing compounds which are ...

    Agua, actores sociales y servicios de los ecosistemas en la cuenca del río Muga. Una aproximación socioecológica 

    Garau, Enrica (Date of defense: 2022-01-31)

    This doctoral thesis aims to identify and characterize the relationships between stakeholders and water resources through the sociocultural and spatial analysis of the water ecosystem services (WES) in the social-ecological ...

    Análisis y evaluación de la vulnerabilidad de la población de La Fortuna de San Carlos a la actividad volcànica del Volcán Arenal, Costa Rica. 

    Berrocal Vargas, Milena (Date of defense: 2008-09-04)

    El Volcán Arenal es un joven estratovolcán (7ka) localizado en el noroeste de Costa Rica. Inicio su presente ciclo eruptivo el 29 de Julio de 1968 con una gran explosión lateral que mató alrededor de 90 personas. <br/><br/>En ...

    Assessment and optimisation of the operation of integrated membrane system for wastewater reclamation 

    Mamo, Julian (Date of defense: 2018-12-11)

    The combination of two membrane technologies coupled together in series has become a standard technology when it comes to producing reclaimed water of high quality for potable reclamation or industrial applications. This ...

    Bioelectrochemical transformation of carbon dioxide to target compounds through microbial electrosynthesis 

    Batlle Vilanova, Pau (Date of defense: 2016-11-25)

    In 2015 the average concentration of CO2 in the atmosphere exceeded 400 ppm. Some technologies, including CO2 capture and storage, are palliative. However, the development of alternatives to burning of fossil fuels focuses ...

    Biological nutrient removal in SBR technology: from floccular to granular sludge 

    Coma Bech, Marta (Date of defense: 2011-05-11)

    Biological nutrient removal has been studied and applied for decades in order to remove nitrogen and phosphorus from wastewater. However, more anthropogenic uses and the continued demand for water have forced the facilities ...

    Bioremediation of nitrate-polluted groundwater using bioelectrochemical systems 

    Pous Rodríguez, Narcís (Date of defense: 2015-05-28)

    The presence of nitrates (NO3-) in groundwater is a worldwide concern. The high energy demand and environmental impact of available technologies requires investigating new technologies. This thesis was focused on investigating ...

    Cambios en la estructura del paisaje del Alt Empordà en el período 1957-2001 

    Romero Vargas, Marilyn (Date of defense: 2005-03-10)

    El paisaje, concebido como una unidad espacial y temporalmente pluriescalar caracterizada por unos patrones de distribución - una estructura-, unas funciones y una red de flujos de materia, energía e información (Forman ...

    Canvis recents en el consum i la gestió de l'aigua en espais turístics. El cas de la Costa Brava (Girona) 

    Gabarda Mallorquí, Ariadna (Date of defense: 2017-02-13)

    Tourism has become one of the most important economic sectors in the Mediterranean coast. Despite the economic benefits generated by tourism at local and regional level, the environmental impacts related to water consumption ...

    Conflictes socioterriorials i participació pública en la gestió de l'aigua de la conca del riu Muga (Alt Empordà) 

    Ventura Pujolar, Montserrat (Date of defense: 2005-05-06)

    Conflictes socioterritorials i participació pública en la gestió de l'aigua de la conca del riu Muga (Alt Empordà) és un treball que incideix sobre la conflictivitat en la gestió dels rius mediterranis i prospecta en la ...

    La conservación del patrimonio natural geológico en campos volcánicos, una herramienta para la gestión sostenible del territorio. El caso de la zona volcánica de la Garrotxa 

    Planagumà, Llorenç (Date of defense: 2022-11-25)

    The study of the geodiversity of an area and the conservation of its geological heritage, unlike biodiversity, has only recently begun to be systematized. This thesis analyses the conservation of geological heritage in ...

    Control basat en lògica difusa per sistemes de fangs activats. Disseny, implementació i validació en EDAR reals 

    Fiter i Cirera, Mireia (Date of defense: 2006-03-24)

    En aquesta tesi es presenten dues propostes de Sistemes de Control basats en Lògica Difusa (SCLD), des del seu disseny fins a la seva implementació i validació en dues instal·lacions: l'EDAR Granollers i l'EDAR Taradell.<br/>El ...

    Coordinated management of urban wastewater systems by means of advanced environmental decision support systems 

    Murlà Tuyls, Damián (Date of defense: 2013-05-17)

    In the last decades and due to the Water Framework Directive implementation, the urban wastewater cycle management has become more complex. The concept of integrated urban wastewater system management is introduced, and ...

    Cultura campesina, cambio técnico y medio ambiente en el consejo popular "Cuatro Esquina" de Santa Lucía 

    Matías González, Alberto (Date of defense: 2006-01-19)

    The research subject comes as a result of the need to implement sustainable practices in agriculture, in order to confront the environmental deterioration. The research aspires to explain the relation between peasant ...

    Desarrollo del proceso anammox para el tratamiento de lixiviados: puesta en marcha y aplicación 

    López Castillo, Helio (Date of defense: 2008-12-01)

    La eliminación biológica de nitrógeno amoniacal se ha llevado a cabo, habitualmente, a través del proceso convencional de nitrificación-desnitrificación. Sin embargo, los lixiviados generados en los depósitos controlados ...

    Desenvolupament d'un sistema de suport a la decisió ambiental per a la gestió de les infraestructures hidràuliques, amb l'objectiu de garantir la qualitat de l'aigua a la Conca del Besòs 

    Devesa i Peiró, Francesc (Date of defense: 2006-03-24)

    Aquesta tesi presenta un projecte de gestió integral d'infraestructures hidràuliques de sanejament a la Conca del riu Besòs. S'han considerat dos sistemes de sanejament (La Garriga i Granollers) amb les seves respectives ...

    Developing a desertification indicator system for a small Mediterranean catchment: a case study from the Serra de Rodes, Alt Empordà, Catalunya, NE Spain 

    Dunjó Denti, Gemma (Date of defense: 2004-03-15)

    La desertificació és un problema de degradació de sòls de gran importància en regions àrides, semi-àrides i sub-humides, amb serioses conseqüències ambientals, socials i econòmiques com a resultat de l'impacte d'activitats ...

    Development of a decision support system for the integrated control of membrane bioreactors 

    Monclús Sales, Hèctor (Date of defense: 2011-11-08)

    The work presented in this PhD thesis includes various partial studies aimed at developing a decision support system for membrane bioreactor integrated control. The decision support systems (DSS) have as a main goal to ...

    Development of an air-scour control system for membrane bioreactors 

    Ferrero, Giuliana (Date of defense: 2011-07-01)

    The thesis involves the development and implementation of a new and robust control system based on permeability trends but at the same time capable of reducing aeration proportionally to permeate flux. Permeability was ...