Now showing items 1-20 of 227
García Gómez, Sonia (Date of defense: 2024-03-08)
(English) High-level radioactive waste, such as spent nuclear fuel (SNF) from nuclear power plants, remains dangerous for hundreds of thousands of years. To manage them properly and avoid harm to human health and the ...
Figueira Alves, Mariana (Date of defense: 2023-12-19)
(English) According to the European Green Deal, the European Union (EU) must become climate-neutral by 2050. However, many raw materials needed for this green transition are supplied by non-EU countries. To ensure the ...
Sheikh, Mahdi (Date of defense: 2023-11-27)
(English) Changing wastewater treatment plants into wastewater and resource recovery facilities represents a paradigm shift in wastewater management. Resources such as water, energy, and nutrients are becoming scarcer, ...
Sans Milà, Jordi (Date of defense: 2022-04-08)
(English) Permanently polarized hydroxyapatite (p-HAp) has been recently proposed as a novel green catalyst. p-HAp is obtained by applying an electrical and thermal stimulation polarization process (TSP), which consists ...
Torres Rivero Andrade, Karina Victoria Alejandra (Date of defense: 2023-07-12)
(English) Acid mine drainage (AMD) is a wastewater originated from complex oxidation processes that has become one of the most challenges facing the global mining industry due to its acidity, high content of SO42- and other ...
Morena Gatius, Ángela Gala (Date of defense: 2023-03-10)
(English) Lignocellulosic biomass is an abundant renewable resource considered a suitable carbon raw material for the synthesis of chemicals and as an alternative to fossil fuels energy supply source. Cellulose, hemicellulose, ...
Braga, Andrea (Date of defense: 2024-01-25)
(English) Heterogeneous catalysis is one of the most important chemical technologies available today to produce most chemicals at the basis of industrial production. The transition to a greener energy production demands ...
Mayor Pillado, Álvaro (Date of defense: 2023-12-15)
(English) The 20th-century introduction of the Haber-Bosch nitrogen fixation process significantly disrupted the nitrogen cycle in ecosystems, contributing to environmental issues and nutrient loss. The heavy reliance on ...
López Hernández, Arianne (Date of defense: 2023-12-20)
(English) Getting to give added value in the different products that are nowadays in the market has not been easy. Since many years ago we have worked on the addition of fragrances in different articles. This added value ...
Sáez Comet, Carlos (Date of defense: 2023-10-06)
(English) Surfaces with special functionalities owed to their surface topographies or textures are present all around us in nature. Millions of living organisms around us profit from those special functionalities thanks ...
Fazlikeshteli, Shiva (Date of defense: 2023-10-27)
(English) Syngas (a mixture of H2 and CO) is a versatile feedstock that can be used to produce a wide range of chemicals and fuels. For that reason, there is a great interest to optimize and explore new routes for its ...
Foroughi, Vahid (Date of defense: 2023-09-20)
(English) The historical analysis performed has shown that jet fires have been the origin of a high number of domino effect accidents, both in the process industry and in the transportation of flammable fluids by pipelines ...
Lapo Calderón, Byron Gonzalo (Date of defense: 2023-07-12)
(English) Rare earths elements (REE) are crucial elements to the future of technology, particularly to the power generation and road transport. One of the most sustainable processes to recover rare earths is biosorption. ...
Chen, Yufen (Date of defense: 2023-05-19)
(English) Metal clusters and single atoms have been considered as effective cocatalysts for the enhancement of photocatalytic hydrogen production dueto their singular geometric structures, electronic properties and unique ...
Vacca, Pascale (Date of defense: 2023-07-20)
(English) Wildfires that reach the border between the wildland and urban areas, defined as the Wildland-Urban Interface (WUI), have rapidly expanded in frequency and severity over the past few decades, and the number of ...
Cifuentes López, Alejandro (Date of defense: 2023-01-19)
(English) This thesis focuses on the study of the catalytic production of hydrogen from methanol and water. Catalytic production is carried out in a catalytic membrane reactor which manages to produce and purify hydrogen. ...
Oriols Pladevall, Núria (Date of defense: 2022-11-17)
(English) An important collection of Romanesque wall paintings, detached from their original places at the beginning of the 20th century, is now preserved and exhibited in the Museu Nacional d'Art de Catalunya. To define ...
Hodásová, L'udmila (Date of defense: 2022-11-09)
(English) Zirconia ceramic is widely used in numerous fields, such as electronics, machinery, and biomedical applications, due to its excellent properties as chemical resistance, thermal stability, electrical resistance, ...
García de Andrés, Xènia (Date of defense: 2022-10-25)
(English) Labels misplacement in the bottles are currently causing problems in wine cellar's labelling lines. According to data provided by Codorníu and Torres cellars, 1 % of the bottles present this issue. Once the wine ...
Lacruz Cruz, Amado (Date of defense: 2022-07-18)
Fluorinated chemicals, commonly known as per- and polyfluoroalkyt substances (PFASs), are widely used to obtain water-, oil- and stain-repellent texUles. The constant development and optimization of fluorochemicals for ...