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Universitat de Girona
Browsing Departament d'Enginyeria Química, Agrària i Tecnologia Agroalimentària by Subject "504"
Now showing items 1-20 of 21
Allocation of GHG emissions in a paper mill, an application tool to reduce emissions
El sector de pasta i paper és considerat un dels set sectors industrials més intensius en consum energètic. La producció i consum d'electricitat i de vapor esdevenen les fonts majoritàries d'emissions de gasos d'efecte ...
Assessment and optimisation of the operation of integrated membrane system for wastewater reclamation
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 ...
Bio-electro CO2 recycling into added value compounds: insights, routes, strategies and performance improvements
ENG- In recent years, the decarbonization of industry has emerged as a key strategy for fostering a sustainable and eco-friendly economy. One promising approach is the conversion of CO2, a major contributor to climate ...
Bioelectrochemical transformation of carbon dioxide to target compounds through microbial electrosynthesis
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
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 ...
Conceptual design of wastewater treatment plants using multiple objectives
La implementació de la Directiva Europea 91/271/CEE referent a tractament d'aigües residuals urbanes va promoure la construcció de noves instal·lacions al mateix temps que la introducció de noves tecnologies per tractar ...
Development of a decision support system for the integrated control of membrane bioreactors
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
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 ...
Electro bioremediation of nitrate contaminated groundwater: from laboratory to on site pilot plant
Water stands out as the most essential resource currently under serious threat. The combination of water scarcity and increasing pollution of available water poses significant challenges to governance and society. Typically, ...
Electrochemical control and minimization of hydrogen sulfide formation in anaerobic systems
Formation of hydrogen sulfide represents a major challenge in the operation of wastewater collection systems. Hydrogen sulfide is malodourous and toxic gas, which causes corrosion of pipes, wells, and constructions, hence ...
Emissions de N2O i desnitrificació en sòls agrícoles i d'ecosistemes naturals. Factors de regulació
La major conscienciació actual dels problemes de pol·lució que acompanyen les pèrdues de N del sòl cap a l'atmosfera ha reorientat les investigacions cap a un coneixement més profund dels processos implicats en les emissions ...
Environmental and socio-economical assessment of measures for the reduction of pharmaceuticals in rivers
Pharmaceuticals are ubiquitous water contaminants that have shown detrimental effects on aquatic organisms at low concentrations. National authorities are starting to plan and implement measures (Wastewater treatment plants ...
Formulació i caracterització de materials compostos de polipropilè reforçat amb fibres lignocel·lulòsiques procedents de poda de taronger. Estudi del seu ús per a materials aplicables a la construcció
Aquesta tesi doctoral i tot el treball experimental s’ha realitzat dintre les línies de treball del grup de recerca, Laboratori d’Enginyeria Paperera i Materials Polímers (LEPAMAP) de l’Escola Politècnica Superior de la ...
Integrated assessment of wastewater treatment plants and their receiving river systems in a global change context
For a long time, there has been a need and an ambition to better understand the behavior of integrated systems by considering the whole urban water cycle, including wastewater transportation, wastewater treatment and the ...
Integrated management of urban wastewater systems: a model-based approach
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 ...
Integrating computational fluid dynamics and biological model to assess wastewater reactor design
This doctoral thesis has integrated biological models (activated sludge models “ASM”) with simulation tools of computational fluid dynamics “CFD”, and has applied them to the design of two advanced technologies for wastewater ...
Metodologia de disseny conceptual d'estacions depuradores d'aigües residuals que combina el procés de decisió jeràrquic amb l'anàlisi de decisions multicriteri
La present tesi proposa una metodologia de disseny conceptual d'estacions depuradores d'aigües residuals (EDAR) mitjançant la combinació del procés de decisió jeràrquic i l'anàlisi de decisions multicriteri. El document ...
Operation and control of SBR processes for enhanced biological nutrient removal from wastewater
In the last decades, the awareness of environmental issues has increased in society considerably. There is an increasing need to improve the effluent quality of domestic wastewater treatment processes. This thesis describes ...
Percepció, concepció i disseny sostenible. Utilització de materials compostos amb fibres naturals en productes de consum
ENG- The main objective is to analyze how a product, in this case small household appliances, can be offered to potential buyers as more environmentally friendly products, that is to say, considered more ecological products ...
Procesos secuenciales de adsorción/oxidación con H2O2 para la eliminación de compuestos orgánicos volátiles
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 ...
