Exploració per autor "Pablo Ribas, Joan de"
Ara es mostren els items 9-28 de 47
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Determination of the equilibrium formation constants of two U(VI)-peroxide complexes at alkaline pH
(2011)
Article
Accés obertThe formation of uranyl-peroxide complexes was studied at alkaline media by using UV-Visible spectrophotometry and the STAR code. Two different complexes were found at a H2O2/U(VI) ratio lower than 2. A graphical method ... -
Dissolution experiments of commercial PWR (52 MWd/kgU) and BWR (53 MWd/kgU) spent nuclear fuel cladded segments in bicarbonate water under oxidizing conditions. Experimental determination of matrix and instant release fraction
(Elsevier, 2015-10-01)
Article
Accés obertThe denominated instant release fraction (IRF) is considered in performance assessment (PA) exercises to govern the dose that could arise from the repository. A conservative definition of IRF comprises the total inventory ... -
Dissolution of high burn-up spent nuclear fuel at high-pH
(De Gruyter, 2023-10-09)
Article
Accés restringit per política de l'editorialThe release of radionuclides from high-burnup spent nuclear fuel (SNF) segments was studied at pH = 13.2 as well as the effect of the presence of calcium and silicon. The aim was to ascertain the dissolution of SNF in ... -
Dynamic leaching studies of 48 MWd/kgU UO2 commercial spent nuclear fuel under oxic conditions
(2013-03)
Article
Accés restringit per política de l'editorialThe leaching of a high-burn-up spent nuclear fuel (48 MWd/KgU) has been studied in a carbonate-containing solution and under oxic conditions using a Continuously Stirred Tank Flow-Through Reactor (CSTR). Two samples of the ... -
Effect of NaCl on the fabrication of the Egyptian blue pigment
(Elsevier Ltd, 2017-08-01)
Article
Accés restringit per política de l'editorialThe effect of the presence of NaCl on the synthesis of Egyptian blue pigment (cuprorivaite, CaCuSi4O10) was studied through experiments in which different amounts of NaCl were introduced in the initial mixture of reactants. ... -
Eina informàtica basada en el guiatge de l’alumne, per l’anivellament dels coneixements previs de química, de primer curs de la UPC de la titulació d’Enginyeria Industrial, mitjançant la plataforma de suport a la docència (Atenea v.4.0)
(Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2008-12-20)
Text en actes de congrés
Accés obertDurant aquest projecte s’ha recopilat i estructurat un material didàctic adequat perquè l’alumnat, en especial el que no hagi cursat assignatures de química abans del seu ingrés a la universitat, pugui aconseguir uns ... -
Equilibri iònic i cinètica : problemes
(Edicions UPC, 1996)
Llibre
Accés restringit a la comunitat UPCAquest llibre s'adreça principalment als alumnes que cursen les assignatures Química I, de la titulació d'Enginyeria Industrial, i Equilibris iònics, de la titulació d'Enginyeria Química, ambdues impartides a l'Escola ... -
Equilibri iònic i cinètica : problemes
(Edicions UPC, 2004)
Llibre
Accés restringit a la comunitat UPCAquest llibre s'adreça principalment als alumnes que cursen les assignatures Química I, de la titulació d'Enginyeria Industrial, i Equilibris iònics, de la titulació d'Enginyeria Química, ambdues impartides a l'Escola ... -
Equilibri iònic i cinètica : problemes
(Edicions UPC, 2003)
Llibre
Accés restringit a la comunitat UPCAquest llibre s'adreça principalment als alumnes que cursen les assignatures Química I, de la titulació d'Enginyeria Industrial, i Equilibris iònics, de la titulació d'Enginyeria Química, ambdues impartides a l'Escola ... -
Equilibris químics en dissolució
(Edicions UPC, 2005)
Llibre
Accés restringit a la comunitat UPCAquest llibre s'adreça principalment als alumnes que cursen les assignatures Química I, de la titulació d'Enginyeria Industrial, i Equilibris iònics, de la titulació d'Enginyeria Química, ambdues impartides a l'Escola ... -
Immobilization of selenite onto natural siderite (FeCO3)
(2015)
Comunicació de congrés
Accés obertThe sorption processes of metals and semimetals on siderite are being studied because of the potential adequacy of the mineral for removing contaminants from natural waters and because of its formation during the reduction ... -
In situ removal of arsenic from groundwater by using permeable reactive barriers of organic matter/limestone/zero-valent iron mixtures
(2010-08)
Article
Accés restringit per política de l'editorialAbstract In this study, two mixtures of municipal compost, limestone and, optionally, zero-valent iron were assessed in two column experiments on acid mine treatment. The effluent solution was systematically analysed ... -
Influence of the interpellet space to the Instant Release Fraction determination of a commercial UO2 Boiling Water Reactor Spent Nuclear Fuel
(Elsevier, 2018-02)
Article
Accés obertThe contact of the coolant with the fuel pin during irradiation produces a gradient of temperature in the fuel pellet that segregates the radionuclides (RN) depending on its volatility and reactivity. This segregation ... -
Instant release fraction corrosion studies of commercial UO2 BWR spent nuclear fuel
(Elsevier, 2017-05-01)
Article
Accés obertThe instant release fraction of a spent nuclear fuel is a matter of concern in the performance assessment of a deep geological repository since it increases the radiological risk. Corrosion studies of two different spent ... -
Investigation of the dielectric properties of nanofiltration membranes
(2013-04-15)
Article
Accés restringit per política de l'editorialMembrane nanofiltration is extremely complex and is dependent on the micro-hydrodynamics and interfacial events occurring at the membrane surface and within the membrane nanopores. There is significant debate as to the ... -
Leaching behaviour of magnesium phosphate cements containing high quantities of heavy metals
(Elsevier, 2009-10-30)
Article
Accés restringit per política de l'editorialStabilization/solidification (S/S) is one of the most employed techniques for treating liquid wastes containing heavy metals. Magnesium potassium phosphate cements have been used in recent years as stabilizing agents with ... -
Litoral Besós: sistema técnico y social como soporte inteligente y sostenible
(Fundación Conama, 2018)
Comunicació de congrés
Accés obertUn argumento común en la regeneración urbana es abordar las presiones sobre los recursos y los desafíos de la urbanización a través del desarrollo tecnológico, mejorando la eficiencia y los problemas de optimización, tal ... -
Modelling enhanced groundwater denitrification in batch micrococosm tests
(2010)
Article
Accés restringit per política de l'editorialIn the last few years, enhanced in situ denitrification has gained a lot of interest as a reliable bioremediation option to remove nitrate from groundwater. However, denitrification modelling in the subsurface environment ... -
Modelling the release of Mo, Tc, Ru and Rh from high burnup spent nuclear fuel at alkaline and hyperalkaline pH
(Cambridge University Press, 2023-12-30)
Article
Accés obertThe present work shows experimental data on the release of some radionuclides that are forming the so-called e particles in the spent nuclear fuel (SNF): Mo, Tc, Ru and Rh. The leaching experiments were carried out with a ... -
Molybdenum release from high burnup spent nuclear fuel at alkaline and hyperalkaline pH
(Elsevier, 2023-01-01)
Article
Accés obertThis work presents experimental data and modelling of the release of Mo from high-burnup spent nuclear fuel (63 MWd/kgU) at two different pH values, 8.4 and 13.2 in air. The release of Mo from SF to the solution is around ...
