A5021101052- Radioactive element chemistry and processing
- Nuclear Materials and Properties
- Nuclear reactor physics and engineering
- Radioactive contamination and transfer
- Nuclear materials and radiation effects
- Ancient Egypt and Archaeology
- Arsenic contamination and mitigation
- Iron oxide chemistry and applications
- Nuclear and radioactivity studies
- Chemical Synthesis and Characterization
- Cultural Heritage Materials Analysis
- Heavy metals in environment
- Mine drainage and remediation techniques
- Building materials and conservation
- Noncommutative and Quantum Gravity Theories
- Analytical chemistry methods development
- Cosmology and Gravitation Theories
- Metal Extraction and Bioleaching
- Minerals Flotation and Separation Techniques
- Archaeology and ancient environmental studies
- Groundwater flow and contamination studies
- Black Holes and Theoretical Physics
- Atmospheric and Environmental Gas Dynamics
- Landfill Environmental Impact Studies
- Radioactivity and Radon Measurements
Universitat Politècnica de Catalunya
2013-2024
FC Barcelona
1990-2023
Elisava Barcelona School of Design and Engineering
2016
Clínica Diagonal
1997-2006
Universitat de Barcelona
2004
Understanding the formation of alteration phases on surface spent nuclear fuel, such as those observed during leaching experiments, is necessary in order to predict concentration radionuclides near-field a final repository. Hydrogen peroxide has been identified one oxidants formed by radiolysis water presence fuel; especially due α activity. The this species solution can contribute uranium secondary phases. In work, we have studied oxidative dissolution synthetic UO2 disks hydrogen solutions...
We propose a novel extension to the recently developed non-commutative Riemannian foliated branch-cut quantum gravity (BCQG). On basis in an extended Faddeev–Jackiw symplectic deformation of conventional Poisson algebra, we investigate non-commutativity effects on topological manifold that provides natural isomorphic setting composed by triad canonically conjugate scalar complex fields which comprise complementary dualities. The resulting spans canonical BCQG cosmic scale factor and,...
Long-term performance assessment of nuclear waste repositories is affected by the ability outer barrier systems to retain radionuclides after possible corrosive leakage containers. The mobility released from spent fuel depends strongly on processes that take place in backfill material. interaction steel corrosion products and part such a scenario. In this work, sorption Th(IV) onto 2-line-ferrihydrite (FeOOH·H2O) magnetite (Fe3O4), used as models for products, has been studied using EXAFS...
A novel approach to cosmic inflation within the framework of a non-commutative Riemannian foliated quantum gravity, built upon reverse Faddeev–Jackiw symplectic spacetime deformation conventional Poisson algebra, is investigated. Friedmann-type dynamical equations, analitycally continued complex framework, incorporate modified energy-momentum Riemann tensor and matter-energy potential, highlighting emergence gravity topological fluctuation effects on expansion dynamics universe. In this...
We present a study of relic gravitational waves based on foliated gauge field theory defined over spacetime endowed with noncommutative algebraic-geometric structure. As an ontological extension general relativity concerning manifolds, metrics and fiber bundles, the space time coordinates, which conventionally correspond to classical numbers, are replaced in this formulation by complementary quantum dual fields. In framework, consistently complying within Bekenstein criterion, combined...
Abstract The sorption kinetics of antimony(V) on synthetic goethite is very fast compared to the other metals (e.g. arsenic and selenium) depends temperature, with an activation energy 49±9 kJ · mol−1 in temperature range 15–35°C. Sorption isotherms have been developed at different temperatures ionic strength values. results modelled using a Langmuir isotherm there not considerable influence neither studied (15°C–35°C), nor (between 0.001 0.01 mol dm−3). high pH values lower than 8, more...
The formation of uranyl-peroxide complexes was studied at alkaline media by using UV-Visible spectrophotometry and the STAR code. Two different were found a H2O2/U(VI) ratio lower than 2. A graphical method used in order to obtain constants such program refine values because its capacity treat multiwavelength absorbance data refining equilibrium constants. obtained for two identified were: UO22+ + H2O2 4OH− ⇆ UO2(O2)(OH)22− 2H2O: log β°1,1,4 = 28.1 ± 0.1 (1)UO22+ 2H2O2 6OH− UO2(O2)2(OH)24−...
Article Kinetic Studies of Unirradiated UO2 Dissolution under Oxidizing Conditions in Batch and Flow Experiments was published on December 1, 1994 the journal Radiochimica Acta (volume 66-67, issue s1).