Exploració per tema "Membranes (Technology)"
Ara es mostren els items 41-60 de 137
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Evaluación de procesos de electrodiálisis para la valorización de efluentes industriales mediante membranas de intercambio iónico
(Universitat Politècnica de Catalunya, 2015-06)
Treball Final de Grau
Accés obertconseguir que el agua obtenida de procesos industriales o de flujos salinos sea apta para el consumo humano, así como la reducción de su impacto en el medio al ser abocada en ríos o mares. Estas técnicas estudian qué ... -
Evaluación de procesos de ultrafiltración por membranas como pre-tratamiento de osmosis inversa. Aplicación a aguas salobres como el río Llobregat
(Universitat Politècnica de Catalunya, 2012-10)
Projecte/Treball Final de Carrera
Accés restringit per decisió de l'autor
Realitzat a/amb: Estació de tractament d'aigua potable de Sant Joan DespíEste proyecto evalúa la utilización de la tecnología de membranas, ultrafiltración (UF) directa de agua del río Llobregat como pre-tratamiento a la osmosis inversa (OI) de la Estación de Tratamiento de Agua Potable (ETAP) ... -
Evaluación de sistemas de filtración con base textil
(Universitat Politècnica de Catalunya, 2023-10-20)
Projecte Final de Màster Oficial
Accés obertEl presente trabajo explora la influencia de las propiedades electrostáticas, concretamente el potencial zeta, en las capacidades de filtración de diversos materiales. Reconociendo una laguna en la bibliografía existente, ... -
Evaluation of nanofiltration membranes for recovery and concentration of rare earth elements from acidic waters
(Universitat Politècnica de Catalunya, 2016-09-05)
Projecte Final de Màster Oficial
Accés obertAcid Mine Drainage (AMD) is a by-product of mining industry which represents an environmental problem in terms of its acidity and high content of heavy metals. These properties make aqueous streams to be a toxic mixture ... -
Evaluation of nanofiltration membranes for the valorization of high salinity currents of sodium sulphate in the management schemes of acid mine waters: removal of salinity and valorization of Na2SO4 for on-site applications
(Universitat Politècnica de Catalunya, 2023-07-06)
Projecte Final de Màster Oficial
Accés restringit per acord de confidencialitatL'enorme impacte ambiental i el potencial contaminant de les Aigües Àcides de Mina (Acid Mine Water, AMW), així com l'augment de la sequera i l'escassetat de matèries primeres crítiques, han intensificat la preocupació ... -
Evaluation of polymeric hydrophobic membranes for the purification of chlorine produced in electrochlorination processes using seawater desalination brines
(Universitat Politècnica de Catalunya, 2012-09)
Projecte Final de Màster Oficial
Accés obertThe purification of chlorine from brines using polymeric hydrophobic membranes has been evaluated in this work. The objectives have been both to determine the suitable membrane to efficiently transport chlorine and the ... -
Experimental and theoretical study of nanofiltration of weak electrolytes: HSO4 - /SO4 2- system
(2018)
Comunicació de congrés
Accés obert -
Experimental and theoretical study of nanofiltration of weak electrolytes: SO4 2–/HSO4 –/H+ system
(2018-03-15)
Article
Accés obert© 2018 Elsevier B.V. Over recent years, nanofiltration (NF) has been considered as an effective way to improve processing steps in metallurgical and hydrometallurgy applications dealing with mixtures of metal ions in ... -
Formación y caracterización de un no-tejido de nanofibras con lanolina como modelo de piel humana para estudio de penetración transdérmica de fármacos
(Universitat Politècnica de Catalunya, 2023-10-10)
Projecte Final de Màster Oficial
Accés obertDurante las últimas décadas, la administración de medicamentos a través de la piel ha evolucionado significativamente. En 1981, se patentaron parches que liberaban escopolamina para tratar mareos y náuseas. Este método, ... -
Forward osmosis membranes with internal morphology design
(2012)
Article
Accés obert -
Free-standing flexible and biomimetic hybrid membranes for ions and ATP transport
(2020-03-01)
Article
Accés obertThe transport of metabolites across robust, flexible and free-standing biomimetic membranes made of three perforated poly (lactic acid) (pPLA) layers, separated by two anodically polymerized conducting layers of poly ... -
From nanofiltration membrane permeances to design projections for the remediation and valorisation of acid mine waters
(Elsevier, 2020-10-10)
Article
Accés obertAcidic Mine Waters (AMWs) are characterised by high acidity (pH¿<¿3) as H2SO4 and elevated contents of metals (Al, Fe, Cu, Zn), including rare earth elements (REEs). Due to the exhaustion of minable REE containing-minerals, ... -
Fundamentals of selective ion transport through multilayer polyelectrolyte membranes
(2013-01-14)
Article
Accés restringit per política de l'editorialMembranes composed of multilayer poly(4-styrenesul- fonate) (PSS)/protonated poly(allylamine) (PAH) fi lms on porous alumina supports exhibit high monovalent/divalent cation selectivities. Remarkably, the di ff usion ... -
Grey water reclamation by decentralized MBR prototype
(2013-03)
Article
Accés restringit per política de l'editorialGrey water treatment and reuse for non-drinking water requirements has become of great interest in arid and semi-arid zones where water resources are becoming both quantitatively and qualitatively scarce. In this study a ... -
Heavy metal recovery by chelating agents and membranes
(Springer, 2016)
Capítol de llibre
Accés restringit per política de l'editorial -
Hollow fiber membrane contactors. Introduction and perspectives
(CRC Press, 2020-11-24)
Capítol de llibre
Accés restringit per política de l'editorialOver the last two decades, hollow fiber contactor-based technology has grown into an accepted unit operation for a wide variety of separations. The increase in the use of this technology, owing to strict environmental ... -
Hollow fiber membrane-based analytical techniques recent advances
(CRC Press, 2020-11-24)
Capítol de llibre
Accés restringit per política de l'editorialProblems of chemical analysis almost always involve two steps; separation of the desired constituent and measurement of the amount or concentration of this constituent. Under the scope of these two steps, sample preparation, ... -
Hybrid catalytic membranes: tunable and versatile materials for fine chemistry applications
(Elsevier, 2015)
Article
Accés obertThe aim of this work is the synthesis of polymer-stabilized Pd nanoparticles inside a functionalized polymeric porous membrane and to test them in metal-catalyzed organic reactions. A polymeric membrane support (Polyethersulfone) ... -
Hydro energy harvesting by using compliant surfaces: preliminary experimental assessment
(2020-03-13)
Article
Accés obertIn this work consideration is given for hydro energy harvesting contained in residual water streams. The idea lies in the bifurcation of the stream into two channels separated by a compliant surface or membrane which, ... -
Impact of sidestream pre-treatment on ammonia recovery by membrane contactors: experimental and economic evaluation
(Multidisciplinary Digital Publishing Institute (MDPI), 2022-12-01)
Article
Accés obertMembrane contactor is a promising technology for ammonia recovery from the anaerobic digestion centrate. However, high suspended solids and dissolved organic matter concentrations can reduce the effectiveness of the ...