Browsing by Author "Reig i Amat, Mònica"
Now showing items 1-20 of 51
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Acid recovery from copper metallurgical process streams polluted with arsenic by diffusion dialysis
(Elsevier, 2021-02-01)
Article
Restricted access - publisher's policyA copper smelter generates solutions containing H2SO4 (220 ± 10 g/L), non-metals (3.4 ± 0.2 g/L As) and metals (0.5 ± 0.1 g/L Zn, 0.13 ± 0.01 g/L Fe and 0.11 ± 0.01 g/L Cd) that are treated with lime as disposal option. ... -
Ammonium removal by liquid–liquid membrane contactors in water purification process for hydrogen production
(2015-01-01)
Article
Open Access© 2014 Balaban Desalination Publications. All rights reserved. In this work, a liquid–liquid membrane contactor (LLMC) was evaluated to remove ammonia traces from water used for hydrogen production by electrolysis. Three ... -
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 ... -
Application of selectrodialysis for the removal of as from metallurgical process waters: Recovery of Cu and Zn
(2017-12-19)
Article
Open AccessIn this work, selectrodialysis (SED) was used to separate arsenic (As(V)) from copper (Cu(II)) and (Zn(II)) of acidic metallurgical process streams by integrating non-selective and selective membranes. The separation process ... -
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. ... -
Comparison of acid-resistant ceramic and polymeric nanofiltration membranes for acid mine waters treatment
(2020-02-15)
Article
Open AccessAcid-resistant ceramic and polymeric nanofiltration (NF) membranes have been identified as relevant materials for sustainable management of acidic streams. NF properties such as a high passage of single-charged ions and ... -
Concentration of NaCl from seawater reverse osmosis brines for the chlor-alkali industry by electrodialysis
(2014-06-02)
Article
Restricted access - publisher's policyCurrently, numerous studies are focused on the valorisation of seawater desalination reverse osmosis brines. Electrodialysis can be used to concentrate one of the primary components (NaCI) and obtain a suitable raw material ... -
Evaluation of calcium alginate-based biopolymers as potential component of membranes for recovering biosurfactants from corn steep water
(2021-08-31)
Article
Open AccessCorn steep water (CSW) is a complex agro-food stream that is used as a source of cost-competitive biosurfactants, since they are produced spontaneously in the steeping process of corn, avoiding production costs. Nevertheless, ... -
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 -
Evolution of electrolyte mixtures rejection behaviour using nanofiltration membranes under spiral wound and flat-sheet configurations
(2014-04-27)
Article
Restricted access - publisher's policyNanofiltration (NF) membranes can be used in different configurations. The aim of this work was to determine the reliability of the data obtained using flat-sheet (FS) laboratoryscale configuration when NF membranes are ... -
Experimentació i modelització del rebuig d’espècies iòniques mitjançant nanofiltració en la potabilització d’aigües salobres
(Universitat Politècnica de Catalunya, 2012-06)
Master thesis
Restricted access - author's decisionDurant el treball final de màster (TFM) s’ha volgut avaluar i modelitzar el rebuig de diverses espècies iòniques mitjançant una membrana de nanofiltració (NF), amb dues configuracions diferents: plana i en espiral. Es ... -
Experimental and theoretical study of nanofiltration of weak electrolytes: HSO4 - /SO4 2- system
(2018)
Conference lecture
Open Access -
Experimental and theoretical study of nanofiltration of weak electrolytes: SO4 2–/HSO4 –/H+ system
(2018-03-15)
Article
Open Access© 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 ... -
Fixed-bed column sorption of ammonium from treated municipal wastewater using clinoptilolite
(2020)
Conference lecture
Open AccessThe sorption of ammonium (NH4+) ion was measured in a continuous fixed-bed column via employing a granular natural zeolite (clinoptilolite). The column performances were investigated at influent flow rate of 0.22 mL/min. ... -
From nanofiltration membrane permeances to design projections for the remediation and valorisation of acid mine waters
(Elsevier, 2020-10-10)
Article
Restricted access - publisher's policyAcidic 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, ... -
Fruit and vegetable processing wastes as natural sources of antioxidant-rich extracts: evaluation of advanced extraction technologies by surface response methodology
(Elsevier, 2021-08-13)
Article
Restricted access - publisher's policyThis study is focused on the recovery of polyphenols from vegetable and fruit residues and further evaluation of antioxidant features of extracts. Spinach and orange have been selected as representative matrices for a more ... -
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 electrically driven membrane separation processes for water treatment and resources recovery
(Universitat Politècnica de Catalunya, 2016-12-19)
Doctoral thesis
Open AccessNowadays, due to the growing fresh water demand, several processes are used to purify seawater by means of desalination or industrial brackish water by different treatment processes. The main limitation of these techniques ...
