Browsing by Subject "Aigües àcides -- Depuració"
Now showing items 1-20 of 22
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Aplicació de tecnologia de membranes de nanofiltració per a la recuperació de metalls d'aigües àcides d'indústries hidrometal·lúrgiques
(Universitat Politècnica de Catalunya, 2019-10-31)
Bachelor thesis
Open AccessActualment és conegut per tothom que existeix una necessitat d’aprofitar els recursos dels que disposem i als que encara es pot donar ús. Les membranes de nanofiltració (NF) són un exemple de tecnologia aplicada ... -
Application of nanofiltration for acidic waters containing rare earth elements: Influence of transition elements, acidity and membrane stability
(2018-03-15)
Article
Open Access© 2017 Elsevier B.V. Acid mine drainage (AMD) is considered the main environmental problem in mining operation due to its acidity, metal content (Fe, Al, Zn, Cu) and onerous associated treatment cost. However, the presence ... -
Arsenic impact on the valorisation schemes of acidic mine waters of the Iberian Pyrite Belt: Integration of selective precipitation and spiral-wound nanofiltration processes
(2021-02-05)
Article
Restricted access - publisher's policyArsenic and selenium presence in acid mine waters (AMWs) limits their disposal due to environmental regulations. The focus to solve the economic infeasibility is directed to sustainable solutions, promoting resource recovery. ... -
Estudio de aplicaciones emergentes de las nanopartículas metálicas obtenidas a partir de aguas ácidas de minas
(Universitat Politècnica de Catalunya, 2018-05)
Bachelor thesis
Restricted access - author's decision
Covenantee: Boehringer Ingelheim EspañaLa nanociencia está siendo un área en auge exponencial de exploración. Esto se debe a la gran cantidad de aplicaciones que abre ésta, llamada la ciencia de lo pequeño. Los seres humanos realizan muchas actividades que ... -
Evaluation of an extreme acid-resistant sulphonamide based nanofiltration membrane for the valorisation of copper acidic effluents
(2021-02-01)
Article
Restricted access - publisher's policyThe exhaustion of Cu reserves minable and processable with the available technology is forcing the hydrometallurgical copper industry to seek alternative sources. Following circular economy principles, researchers’ attention ... -
Evaluation of nanofiltration membranes for recovery and concentration of rare earth elements from acidic waters
(Universitat Politècnica de Catalunya, 2016-09-05)
Master thesis
Open AccessAcid 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 NF membranes as treatment technology of acid mine drainage: metals and sulfate removal
(2018-08-15)
Article
Open AccessAcid mine drainage (AMD) are acidic streams rich in dissolved ferrous and non-ferrous metal sulfates and minor amounts of non-metals. Nanofiltration (NF) has been postulated as a potential technology in the metallurgical ... -
Evaluation of polymeric nanofiltration membranes on metal valorisation from acidic mine waters
(2018)
Conference lecture
Open Access -
Experimental and theoretical study of nanofiltration of weak electrolytes: HSO4 - /SO4 2- system
(2018)
Conference lecture
Open Access -
Fabrication of thin-film nanocomposite nanofiltration membranes incorporated with aromatic amine-functionalized multiwalled carbon nanotubes. Rejection performance of inorganic pollutants from groundwater with improved acid and chlorine resistance
(2019-01-01)
Article
Open AccessA thin-film nanocomposite nanofiltration (TFN-NF) membrane was fabricated through blending a novel aromatic amine-functionalized multiwalled carbon nanotubes (AAF-MWCNTs) and an aliphatic amine-functionalized multiwalled ... -
From nanofiltration membrane permeances to design projections for the remediation and valorisation of acid mine waters
(Elsevier, 2020-10-10)
Article
Open AccessAcidic 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, ... -
Improving the performance of polyamide Nano-filtration membrane in acidic media by incorporation of modified multi-walled carbon nanotubes
(2018)
Conference lecture
Open Access -
Increasing sustainability on the metallurgical industry by integration of membrane nanofiltration processes: acid recovery
(2019-11-01)
Article
Open AccessThe metallurgical industry generates large volumes of toxic effluents characterised, generally, by high acidity and a noticeable content of metals (Fe, Cu and Zn) and non-metals (As, Sb, Bi). The toxicity of these streams ... -
Integration of diffusion dialysis for sulphuric acid recovery from metallurgical process streams
(2018)
Conference lecture
Open Access -
Integration of nanofiltration membranes in recovery options of rare earth elements from acidic mine waters
(2019-02-10)
Article
Open AccessAcid mine waters (AMWs) are characterized by a low pH, high concentrations of transition metals (iron, copper, zinc), and the presence of highly valuable metals such as rare earth elements (REE) at lower concentrations. ... -
Integration of selectrodialysis and ion-exchange for copper and zinc recovery from metallurgical process streams containing arsenic
(2018)
Conference lecture
Open Access -
Processes affecting the efficiency of limestone, aragonite and dolostone in passive treatments for AMD
(Universitat Politècnica de Catalunya, 2015-10-30)
Doctoral thesis
Open AccessWaters from mines (acid mine drainage-AMD), contain elevated concentrations of SO-24, Fe and other contaminant metals, which can persist in the environment during centuries. The purpose of AMD treatments is to retain metals ... -
Recovery of sulphuric acid and added value metals (Zn, Cu and rare earths) from acidic mine waters using nanofiltration membranes
(2019-04-01)
Article
Open AccessAcidic mine waters (AMWs) contain, in addition to moderate concentrations of sulphuric acid, relatively high concentrations of transition elements (e.g. Fe, Al, Cu, Zn) and, in some cases, minor amounts of valuable rare ... -
Recovery of sulphuric acid and valuable metals (Zn, Cu and REE) from acidic mine waters using nanofiltration
(2019)
Conference lecture
Open AccessAcidic mine waters (AMWs) contains moderate concentrations of sulphuricacid, relatively high concentrations of metals (Al, Fe, Cu and Zn) and minor amounts or rare earth elements (REE). The established management routes ... -
Tractament d’aigües àcides de mina mitjançant membranes de NF en mòdul pla: efecte de l’envelliment de la membrana
(Universitat Politècnica de Catalunya, 2017-10)
Bachelor thesis
Restricted access - author's decisionAquest Treball de Fi de Grau consisteix en l’estudi de l’efecte de l’envelliment d’una membrana de nanofiltració (NF) tractant diferents dissolucions d’aigües àcides de mina (AAM). En aquest treball hi ha una introducció ...
