Now showing items 1-20 of 36

  • Adsorció de l'herbicida paraquat en alginat de calci 

    Ruiz Planas, Montserrat; Roset Calzada, María Lourdes; Barrón Zambrano, Jesús Alberto; Sastre Requena, Ana María; Pérez González, Juan Jesús (2009)
    Conference report
    Open Access
    La sostenibilitat de l’ús de l’aigua esta lligada de forma fonamental al seu ús en l’agricultura. L’activitat agrària afecta directament la qualitat de les aigües. Els residus de fertilitzants i de productes fitosanitaris, ...
  • Antimony removal from water by a chitosan-Iron(III)[ChiFer(III)] biocomposite 

    Lapo, Byron; Demey Cedeño, Hary; Carchi, Tany; Sastre Requena, Ana María (Multidisciplinary Digital Publishing Institute (MDPI), 2019-02-01)
    Article
    Open Access
    The presence of antimony(III) in water represents a worldwide concern, mainly due to its high toxicity and carcinogenicity potential. It can be separated from water by the use of sustainable biopolymers such as chitosan ...
  • Boron recovery from seawater with a new low-cost adsorbent material 

    Demey Cedeño, Hary; Vincent, Thierry; Ruiz Planas, Montserrat; Nogueras Cervera, Marc; Sastre Requena, Ana María; Guibal, Eric (2014-10-15)
    Article
    Restricted access - publisher's policy
    A new adsorbent [chiFer(III)] for boron recovery from seawater was prepared using chitosan and iron(III) hydroxide. Experiments were carried out in a column system. Seawater samples were collected from the Mediterranean ...
  • Boron reduction by supported liquid membranes using ALiCY and ALiDEC ionic liquids as carriers 

    Coll Ausió, Mª Teresa; Fortuny Sanromá, Agustín; Sastre Requena, Ana María (2014-04-01)
    Article
    Restricted access - publisher's policy
    The extraction of boron by liquid-liquid extraction and by supported liquid membranes (SLM) using two ionic liquids, the trioctyl/decylmethylammonium-bis(2,4,4-trimethilpentyl) phosphinate (ALiCY IL) and the trioctyl/dec ...
  • Boron removal from aqueous solutions using alginate gel beads in fixed-bed systems 

    Demey Cedeño, Hary; Ruiz Planas, Montserrat; Barrón Zambrano, Jesús Alberto; Sastre Requena, Ana María (2014-06-01)
    Article
    Open Access
    BACKGROUNDA column sorption study was carried out using calcium alginate gel beads as adsorbent for the removal of boron from aqueous solutions. The breakthrough curve was obtained as a function of pH, initial concentration ...
  • Boron removal from seawater by supported liquid membranes 

    Coll Ausió, Mª Teresa; Fortuny Sanromá, Agustín; Leopold, Agnieszka Ana; Sastre Requena, Ana María (2009)
    Conference lecture
    Restricted access - publisher's policy
    Water covers 70% of the Earth’s surface but, even so water is becoming a scarce resource. In order to achieve the target 7.c of the Millennium Development Goals, to assure potable water for the people without sustainable ...
  • Cadmium removal by a low-cost magadiite-based material: Characterization and sorption applications 

    Attar, Keltoum; Bouazza, Djamila; Miloudi, Hafida; Tayeb, Abdelkader; Sastre Requena, Ana María; Demey Cedeño, Hary (Elsevier, 2018-08-01)
    Article
    Restricted access - publisher's policy
    The sorption of cadmium from nitrate medium at room temperature was carried out using solid phase magadiite and magadiite impregnated with Cyanex 272 [bis(2,4,4-trimethylpentyl)phosphinic acid]. The sorbent materials have ...
  • Chloride reduction from brackish water by supported liquid membranes using ionic liquids as carriers 

    Benito, Sergi; Fortuny Sanromá, Agustín; Coll Ausió, Mª Teresa; Sastre Requena, Ana María (2012)
    Conference lecture
    Restricted access - publisher's policy
    The desalinization of the continental waters is one of the actual challenges on supplying water requirements. Water with high contents in salts is inadequate for drinking water and irrigation uses. In the industry this ...
  • Development of a new chitosan/Ni(OH)(2)-based sorbent for boron removal 

    Demey Cedeño, Hary; Vincent, Thierry; Ruiz Planas, Montserrat; Sastre Requena, Ana María; Guibal, Eric (2014-05-15)
    Article
    Restricted access - publisher's policy
    A new composite containing chitosan (as the encapsulating material) and nickel (II) hydroxide [chiNi(II)] has been manufactured for the removal of boron from aqueous solutions. The biosorbent was characterised using SEM ...
  • Effect of phase modifiers on boron removal by solvent extraction using 1,3 diolic compounds 

    Fortuny Sanromá, Agustín; Coll Ausió, Mª Teresa; Kedari, Chandrashekhar S.; Sastre Requena, Ana María (2014-06)
    Article
    Open Access
    Abstract: BACKGROUND: Among the polyols, 1,3 diols are selective and efficient extractants for boron but significant solubility of these into aqueous solutions restricts their application in large scale separation processes. ...
  • Evaluation of torrefied poplar-biomass as a low-cost sorbent for lead and terbium removal from aqueous solutions and energy co-generation 

    Demey Cedeño, Hary; Melkior, Thierry; Chatroux, A.; Attar, Keltoum; Sastre Requena, Ana María (2019-04-01)
    Article
    Restricted access - publisher's policy
    Two low-cost renewable poplar-based materials were manufactured in this work for energy production and as sorbents for lead and terbium removal from aqueous effluents. Torrefaction was used as a pretreatment process for ...
  • Experimental and modelling studies of neodymium solvent extraction from chloride media with methyl-tri(octyl/decyl)ammonium oleate ionic liquid diluted in kerosene 

    Obón Estrada, Eleonora; Fortuny Sanromá, Agustín; Coll Ausió, Mª Teresa; Sastre Requena, Ana María (Elsevier, 2017-12-01)
    Article
    Restricted access - publisher's policy
    A study of the solvent extraction process of Nd(III) from chloride solutions has been carried out using an ionic liquid (AliOle) prepared from Aliquat 336 (Methyl-tri(octyl/decyl)ammonium chloride) and Oleic Acid. The IL ...
  • Immobilization of cyphos ionic liquids in alginate capsules for Cd(II) sorption 

    Guibal, E.; Figuerola Piñol, A.; Ruiz Planas, Montserrat; Vincent, T.; Sastre Requena, Ana María; Jouannin, C. (2010-01)
    Article
    Restricted access - publisher's policy
    Four phosphonium ionic liquids (Cyphos IL-101, IL-105, IL-109, and IL-111) have been immobilized in composite biopolymer capsules (alginate/gelatin). The resins were tested for Cd(II) sorption in HCl solutions. Cyphos ...
  • Iniciatives per al seguiment de la qualitat dels estudis a la UPC 

    Sastre Requena, Ana María (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2011-02-02)
    Conference lecture
    Open Access
  • Ionic liquids as a carrier for chloride reduction from brackish water using hollow fiber renewal liquid membrane 

    Fortuny Sanromá, Agustín; Coll Ausió, Mª Teresa; Sastre Requena, Ana María (2014-06-16)
    Article
    Open Access
    High concentration of chloride ions in continental water is a great problem for the exploitation of these natural resources. In industry, the use of this water involves additional conditioning steps. For drinking water and ...
  • Journal of Membrane Science & Research 

    Rathore, Narendra Singh; Sastre Requena, Ana María; Pabby, Anil Kumar (2016-01)
    Article
    Open Access
    Membrane assisted liquid extraction (MALE) technologies are gaining an important role as an extraction /separation technique for actinides and are being deployed as a promising tool for remediation of nuclear waste ...
  • Mathematical modeling for facilitated transport of Ge(IV) through supported liquid membrane containing Alamine 336 

    Kamran Haghighi, Hossein; Irannajad, Mehdi; Fortuny Sanromá, Agustín; Sastre Requena, Ana María (2018-04-01)
    Article
    Open Access
    A mathematical model was developed for the germanium facilitated transport from a medium containing tartaric acid using Alamine 336 as a carrier. Modeling was carried out based on the extraction constant (Kext) obtained ...
  • Mathematical modeling of cadmium(II) solvent extraction from neutral and acidic chloride media using Cyanex 

    Leopold, Agnieszka Ana; Coll Ausió, Mª Teresa; Fortuny Sanromá, Agustín; Rathore, Narendra Singh; Sastre Requena, Ana María (Elsevier, 2010-07-29)
    Article
    Restricted access - publisher's policy
    This paper describes experimental work and the mathematical modeling of solvent extraction of cadmium( II) from neutral and acidic aqueous chloride media with a Cyanex 923 extractant in Exxol D-100. Solvent extraction ...
  • Mathematical modeling on non-dispersive extraction of germanium from aqueous solutions using Aliquat 336 

    Kamran Haghighi, Hossein; Irannajad, Mehdi; Fortuny Sanromá, Agustín; Sastre Requena, Ana María (2018-12-28)
    Article
    Restricted access - publisher's policy
    In this work, the mathematical modeling of the facilitated transport of germanium (non-dispersive extraction) through a flat sheet membrane with an Aliquat 336 carrier was described. The flat sheet supported liquid membrane ...
  • Mathematical modelling of neodymium, terbium and dysprosium solvent extraction from chloride media using methyl-tri(octyl/decyl)ammonium oleate ionic liquid as extractant 

    Obón Estrada, Eleonora; Fortuny Sanromá, Agustín; Coll Ausió, Mª Teresa; Sastre Requena, Ana María (Elsevier, 2017-11)
    Article
    Open Access
    This paper collects experimental data and mathematical modelling of Nd(III), Tb(III) and Dy(III) solvent extraction with an ionic liquid prepared from Aliquat 336 (Methyl-tri(octyl/decyl)ammonium chloride) and Oleic Acid ...