Browsing by Subject "Separació (Tecnologia)"
Now showing items 1-20 of 26
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A limiting case of constant counterion electrochemical potentials in the membrane for examining ion transfer at ion-exchange membranes and patches
(2019-10-08)
Article
Open AccessIon passage through ion-exchange membranes is vital in electrodialysis desalination, batteries and fuel cells, and water splitting. Simplified models of ion transport through such membranes frequently assume complete ... -
Affinity of dual energy X-ray transmission sensors on minerals bearing heavy rare earth elements
(2020-03-01)
Article
Open AccessThis work demonstrates the effective use of automatic sensor-based sorting technology as a viable separation method for rare earth element (REE) rich ores composed primarily of xenotime minerals with gagarinite-(Y) and ... -
Analysis and design of a capillary driven blood plasma separation microfluidic device
(Universitat Politècnica de Catalunya, 2014-01-17)
Doctoral thesis
Open AccessRecently, the emergence of lab-on-a-chip devices has seen in a variety of applications especially in clinical analys is and diagnostics. ln particular the lack of suitable microdevices for separation of plasma from whole ... -
Analysis of low temperature carbon dioxide capture in a supersonic nozzle
(Universitat Politècnica de Catalunya / Technishe Universität München, 2011)
Master thesis (pre-Bologna period)
Restricted access - author's decisionMost energy scenarios suggest carbon capture and storage (CCS) from power generation might contribute to achieve the carbon emissions reduction necessary to stabilize the long-term global average atmospheric temperature. ... -
Biofiltro percolador aerobio para eliminación de óxidos de nitrógeno (nox): puesta en marcha
(Universitat Politècnica de Catalunya, 2019-07)
Master thesis
Restricted access - author's decisionEn el presente trabajo se realiza un estudio para determinar la idoneidad de utilizar técnicas biológicas para el proceso de absorción y oxidación de monóxido de nitrógeno (NO) a nitrato y/o nitrito.Por tanto, se diseñó ... -
Characterization and modelling of micro and nanofluidic systems
(Universitat Politècnica de Catalunya, 2015-03-13)
Doctoral thesis
Open AccessLab-on-a-chip arrangements are ever more frequently used for the miniaturization of chemical and biochemical analysis. In these arrangements, all the manipulations of analyte transport, separation, mixing with reactants ... -
Destoning the Moatize coal seam, Mozambique, by dry jigging
(2020-08-31)
Article
Open AccessThis paper proposes pre-beneficiation studies by air jigs of the coal layers from a Moatize coal deposit. Pre-beneficiation, also called destoning, removes tailings before the beneficiation plant. The air jigs operate in ... -
Direct current insulator based dielectrophoresis (DC-iDEP) microfluidic chip for blood plasma separation
(Universitat Politècnica de Catalunya, 2015-04-10)
Doctoral thesis
Open AccessLab-on-a-Chip (LOC) integrated microfluidics has been a powerful tool for new developments in analytical chemistry. These microfluidic systems enable the miniaturization, integration and automation of complex biochemical ... -
Diseño de una Unidad Desbencenizadora
(Universitat Politècnica de Catalunya, 2008-04)
Master thesis (pre-Bologna period)
Open AccessEn el siguiente estudio se propone el diseño completo de una unidad desbencenizadora. La función primordial de dicha unidad será separar el benceno a partir de una alimentación compuesta por naftas de reformado. ... -
Electromagnetic process to purify nuclear molten salts
(Universitat Politècnica de Catalunya / Institut National Polytechnique de Grenoble, 2011)
Master thesis (pre-Bologna period)
Restricted access - author's decisionThe separation between actinides and fission products could be realized by a pyrometallurgical liquid/liquid extraction process. Thanks to an oxide-reductive reaction, a mass exchange occurs at the interface between a ... -
Energy balances in separation process
(Universitat Politècnica de Catalunya / École des Mines d’Albi-Carmaux, 2008)
Master thesis (pre-Bologna period)
Restricted access - confidentiality agreement -
Energy optimisation and controllability in complex distillation columns
(Universitat Politècnica de Catalunya, 2000-09-12)
Doctoral thesis
Open AccessTo extend the knowledge of complex distillation arrangements for the separation of ternary mixtures and make them closer to implementation in industry is the motivation of this thesis work. Some design, operation, and ... -
Estudi comparatiu de les tècniques de coagulació, electrocoagulació i electro-oxidació pel tractament d’aigües residuals de la indústria tèxtil
(Universitat Politècnica de Catalunya, 2017-06-10)
Bachelor thesis
Restricted access - author's decision -
Extraction des métaux lourds de boues issues d´une séparation granulométrique de cendres volantes d´incinérateur. Cas particulier du plomb
(Universitat Politècnica de Catalunya / Université Libre Bruxelles, 2008)
Master thesis (pre-Bologna period)
Restricted access - confidentiality agreement -
Implications of inhomogeneous distribution of concentration polarization for interpretation of pressure-driven
(2016-08-22)
Article
Open AccessA number of CFD studies have demonstrated that there is a considerable inhomogeneity of extent of Concentration Polarization (CP) over the membrane surface especially in spacer-filled feed channels. However, the consequences ... -
Inverse homogenization using the topological derivative
(2021-09-28)
Article
Open AccessPurpose: The purpose of this study is to solve the inverse homogenization problem, or so-called material design problem, using the topological derivative concept. Design/methodology/approach : The optimal topology is ... -
Investigation of sedimentation behaviour of micro crystalline cellulose
(Universitat Politècnica de Catalunya / Chalmers Tekniska Högskola, 2011)
Master thesis (pre-Bologna period)
Restricted access - author's decisionBatch settling is a widely used method to separate a flocculated suspension into concentrated sediment and a clear liquid. Experimental and theoretical studies of this process have been published for almost a century due ... -
Optimization and dust emissions analysis of the air jigging technology applied to the recycling of construction and demolition waste
(2020-07-15)
Article
Open AccessThis work aims to evaluate the use of the air jigging technique, a density-based separation technology commonly applied in mineral processing, to upgrade the quality of mixtures (density and geometric properties) that ... -
Parametrization of the efficiency curves for an experimental hydrocyclone
(Universitat Politècnica de Catalunya, 2018-01)
Bachelor thesis
Restricted access - author's decisionThis work shows the results of the experimental study made with an experimental hydrocyclone used in the mineral processing laboratory, EPSEM (Manresa, Barcelona). The study elaborated shows the efficiency curves and cut ... -
Procesos de separación de biotecnología industrial
(Iniciativa Digital Politècnica, Oficina de Publicacions Acadèmiques Digitals de la UPC, 2018)
Book
Open AccessLa biotecnología moderna se basa en la ingeniería genética, pero sin los procesos posteriores de separación y purificación a escala de producción, ningún bioproducto puede llegar a ser una realidad comercial. Este libro ...
