Now showing items 21-40 of 71

    Green citites and green urban economy; contributions from case studies for a necessary low-carbon future 

    Nuss Girona, Sergi (Date of defense: 2014-12-05)

    City Governments engaged in climate change mitigation and adaptation face the multiple challenge of self-commitment, the need to involve their communities and stakeholders, and top-down and multi-scalar processes out of ...

    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 ...

    Vers una gestió territorial del regadiu. Model i aplicació a tres casos d'estudi de l'Europa meridional 

    Ricart Casadevall, Sandra (Date of defense: 2014-12-16)

    La tesi doctoral "Vers una gestió territorial del regadiu. Model i aplicació a tres casos d’estudi de l’Europa meridional" aprofundeix en la gestió del regadiu des d’una perspectiva territorial, tot definint i aplicant el ...

    Integrated operation of membrane bioreactors: simulation and experimental studies 

    Dalmau Figueras, Montserrat (Date of defense: 2014-10-17)

    Membrane bioreactors (MBR) are a combination of common bioreactors and membrane filtration units for biomass retention, presenting unique advantages like high effluent quality and a smaller footprint than the one by ...

    Effects of operational conditions on the performance of a partial nitritation SBR treating high nitrogen loads 

    Gabarró i Bartual, Jordi (Date of defense: 2014-07-18)

    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 ...

    Minimisation and abatement of volatile sulphur compounds in sewage sludge processing 

    Vega Martínez, Esther (Date of defense: 2014-07-30)

    Environmental pollution related to odour emission has become in the last years an important public concern. Closeness of odour-causing facilities such as waste water treatment plants (WWTPs) to urban areas further aggravates ...

    Diagnosis, assessment and optimisation of the design and operation of municipal MBRs 

    Gabarrón Fernández, Sara (Date of defense: 2014-05-16)

    This thesis is based on diagnosing, assessing and optimising the design and operation of membrane bioreactors (MBR) used for treating municipal wastewater. Specifically, this thesis has been carried out within the framework ...

    Multi-scale investigation of occurrence, fate, removal and biodegradation of pharmaceutical contamination in wastewater treatment and river systems 

    Collado Alsina, Neus (Date of defense: 2013-07-19)

    Human and veterinary pharmaceuticals have been recognized as ubiquitous water microcontaminants with potential subtle detrimental effects on aquatic organisms. The majority of pharmaceutical compounds, after being consumed ...

    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 ...

    Development of an environmental decision support system for the selection and integrated assessment of process flow diagrams in wastewater treatment 

    Garrido Baserba, Manel (Date of defense: 2013-03-04)

    The wastewater treatment plays an important role in the maintenance of natural water resources. However, regardless of the technology used or the level of treatment required, the treatment plants of the XXI century are ...

    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 ...

    Percepción social en la gestión del riesgo de inundación en un área mediterránea (Costa Brava, España) 

    Lara San Martín, Alejandro (Date of defense: 2012-12-11)

    This research aims to understand the perception of civil society both organized and unorganized, regarding the problem of floods and their management. This is based on a case study of the following municipalities; Calonge, ...

    Integrated management of urban wastewater systems: a model-based approach 

    Prat Busquets, Pau (Date of defense: 2012-02-26)

    The main objective pursued in this thesis targets the development and systematization of a methodology that allows addressing management problems in the dynamic operation of Urban Wastewater Systems. The proposed methodology ...

    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 ...

    Treatment of mature urban landfill leachates by anammox process 

    Ruscalleda Beylier, Maël (Date of defense: 2012-02-17)

    This thesis results from the collaborative projects between the LEQUIA-UdG group and Cespa (a company in charge of several landfill sites in Spain). The aim of the work was the development of a suitable alternative treatment ...

    Procesos secuenciales de adsorción/oxidación con H2O2 para la eliminación de compuestos orgánicos volátiles 

    Anfruns Bagaria, Alba (Date of defense: 2011-11-25)

    Volatile Organic Compounds (VOCs) are one of the main groups of odour causing compounds in Waste Water Treatment Plants (WWTP). Adsorption technology is already established, in recent years the interest for the optimization ...

    Estudio del impacto ambiental del uso del bagazo como fuente de energía en centrales azucareros en Cuba. Estudio de caso "Melanio Hernández" 

    Gil Unday, Zuleiqui (Date of defense: 2005-10-19)

    This work was carried out to study the environmental impacts produced by power generation from biomass (bagasse) in sugar mills in Cuba. For this purpose, with the collaboration of the Center for Energy and Industrial ...

    Environmental governance from a gender perspective. Theoretical reflections and case studies 

    Agüera Cabo, Mercè (Date of defense: 2011-07-08)

    In the second half of the twentieth century we saw the environmental debate escalate into one of the most challenging and complex issues that authorities at international, national, regional and municipal levels have 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 ...

    Paisatge i models urbans contemporanis. Les comarques gironines (1979-2006): del "desarrollismo" a la globalització 

    Valdunciel i Coll, Julio (Date of defense: 2011-06-14)

    This doctoral thesis offers a quantitative and qualitative analysis of the changes in the urban shape and landscape of the Girona Counties between 1979 and 2006. The theoretical part of the research lies within the framework ...