Now showing items 41-60 of 227

    Study on adsorption behavior of rare earth elements onto magnetic nanocomposites of carboxymethyl chitosan, alginate and novel biodegradable polyamide 

    Javadian, Hamedreza (Date of defense: 2020-07-16)

    Rare Earth Elements (REEs) are known as the remarkable components in many technologies that are driving the modern world. They are widely used in chemical engineering, permanent magnets, fluorescent lighting, sensors, cell ...

    Rare earth elements recovery from E-wastes by solvent extraction and supported liquid membrane processes 

    Pavón Regaña, Sandra (Date of defense: 2019-11-28)

    Nowadays, rare earth elements (REEs) have gained importance due to their indispensable and critical use in many high-tech industries like hybrid cars, fluorescent lamps, flat screen televisions, mobile phones, disc drives ...

    Decision support strategies for the efficient implementation of circular economy principles in process systems 

    Somoza Tornos, Ana (Date of defense: 2020-03-26)

    Economic growth at any expense is no longer an option. Awareness of the growing human footprint is crucial to face the problems that the impoverishment of ecosystems is causing and will cause in the future. One of the key ...

    Infrared image processing tools for automated aerial remote sensing of active wildland fires 

    Valero Pérez, Mario Miguel (Date of defense: 2019-10-30)

    Forest fires are natural phenomena essential for ecosystem balance. However, their impact on society is increasing. Emergency managers are facing unprecedented crises producing massive evacuations, numerous casualties and ...

    Use of mathematical methods in the resolution of chemical engineering problems 

    Valverde Salamanca, Abel (Date of defense: 2020-07-27)

    This thesis consists of a compendium of five works that illustrate the utilization of selected mathematical methods to solve specific chemical engineering problems. Hence, the thesis is intended to cover both, a review of ...

    Development of novel techniques of advanced transport characterization of membranes 

    Fernández de Labastida Ventura, Marc (Date of defense: 2020-10-01)

    Optimization of membrane separation processes rely on the accurate determination of some parameters related to membrane structure, chemistry, morphology or transport mechanism. Therefore, membrane characterization is ...

    Aplicación de la fermentación láctica como estrategia de transformación y valoración de matrices vegetales 

    Benavides Martín, María Angélica (Date of defense: 2019-12-03)

    In Colombia, strategies are being promoted to increase fruit and vegetable production, in order to take advantage of agricultural potential. However, there are also high food losses, low consumption and low transformation. ...

    Hydroxyapatite-based materials for smart antitumor drug delivery systems, endocytic pathways and endosomal trafficking : polymers and biopolymers 

    Rivas Cañas, Manolo (Date of defense: 2019-10-28)

    Development of new drug molecule is expensive and time consuming. Improving safety efficacy ratio of “old” drugs has been attempted using different methods such as individualizing drug therapy, dose titration, and therapeutic ...

    Resines acríliques modificades com a nous productes de readobament i/o adobament sense formol ni fenol 

    Canudas Ventura, Miquel (Date of defense: 2020-07-24)

    The leather manufacturing process consists of a sequence of complex chemical reactions and mechanical processes that allow turning skin, a putrefiable by-product of alimentary industry, into leather, a stable high-value-added ...

    Towards the recovery of rare earth elements from end-of-life products : hydrometallurgical routes and mathematical modelling of extraction systems 

    Obón Estrada, Eleonora (Date of defense: 2019-11-27)

    The rare earth elements (REEs) are essential ingredients for the development of modern industry and the transition to a more sustainable economy model. The unique physicochemical features of these elements, such as their ...

    Advanced oxidation process models for optimisation and decision making support in water management 

    Audino, Francesca (Date of defense: 2019-06-20)

    The objective of this thesis is contributing to the development of a systematic modelling approach for a more efficient and sustainable water management. The main aim is introducing Chemical and Process System Engineering ...

    Validation of CFD codes for risk analysis of accidental hydrocarbon fires 

    Rengel Darnaculleta, Borja (Date of defense: 2019-12-13)

    Accidental releases of flammable hydrocarbons in chemical process industries can trigger severe hazards: explosions, fires, and dispersion of toxic vapour clouds. Explosions and toxic releases may injure people within large ...

    Concepts, perspectives and implications of a hybrid system made of nucleic acids biopolymers and hydroxyapatite mineral 

    Turon Dols, Pau (Date of defense: 2019-11-08)

    The origin of building blocks of life and how life thrived on Earth remains a topic of high interest for researchers of the Origin of Life. In this thesis, we deal with concepts, perspectives and implications of the system ...

    Integration of nanofiltration and diffusion dialysis for the sustainable management of acidic liquid wastes 

    López Rodríguez, Julio (Date of defense: 2019-12-17)

    Nowadays mining and hydrometallurgical industries generate a considerable amount of acidic liquid wastes (ALWs), which are characterised by a low pH and the presence of metals (e.g. Fe, Cu, Zn and Rare Earth Elements (REEs) ...

    Avaluació d'alternatives industrials per a l'obtenció de nous materials que valoritzen residus queratínics 

    Casadesús Fusté, Marta (Date of defense: 2019-11-25)

    The worldwide poultry industry generates a large amount of wastes which, accordingly to the current law, are mostly discarded. These wastes include chicken feathers, keratin structures which 109.056.179 ton were generated ...

    Smart hybrid nanomaterials for biomimetic membranes 

    Lopes Rodrigues, Maximilien (Date of defense: 2019-11-11)

    This thesis focuses on the preparation of nanomaterials made of proteins and polymers. Even though the technology has advanced in the last decades to design new devices at the atomic scale, researchers are still inspired ...

    Multifunctional enzymatically-generated hydrogel platforms for chronic wound application 

    Stefanov Stefanov, Ivaylo (Date of defense: 2019-07-23)

    Chronic wounds became burdensome problem of worldwide healthcare systems, along with the increased elderly population, which is the most vulnerable risk group, predisposed to their development. Chronic wounds represent a ...

    Hybrid block and graft copolymers made from macrolactones and α-amino acids for applications as drug delivery nanosystems 

    Tinajero Díaz, Ernesto (Date of defense: 2019-07-17)

    Naturally produced peptides or proteins can be regarded as highly refined polymers. When synthetic polymers are married to proteins or peptides, the resulting bioconjugates can synergistically combine the properties of the ...

    Nanoestructuras de TiO2 de baja dimensionalidad para la obtención fotocatalítica de hidrógeno 

    Martínez Martínez, Gabino Lester (Date of defense: 2019-07-11)

    Hydrogen is one of the most promising solutions for the energy future, since its combustion only produces water vapour, so it does not pollute. In addition, it can be obtained from abundant and renewable substances. Fuel ...

    Conceptual modelling for integrated decision-making in process systems 

    Dombayci, Canan (Date of defense: 2019-05-27)

    This Thesis addresses the systematic construction of Decision Making Models (DMMs) from the conceptualization stage to its application in specific situations, with special emphasis on !he treatment of scenarios where there ...