Now showing items 1-20 of 68

    • A potential lignocellulosic biomass based on banana waste for critical rare earths recovery from aqueous solutions 

      Lapo Calderón, Byron Gonzalo; Bou Serra, Jordi; Hoyo Pérez, Javier; Tzanov, Tzanko; Carrillo, Manuel; Peña, Karina; Sastre Requena, Ana María (2020-04-29)
      Article
      Open Access
      Rare earth elements (REE) present multiple applications in technological devices but also drawbacks (scarcity and water contaminant). The current study aims to valorise the banana wastes - banana rachis (BR), banana ...
    • 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 ...
    • Bioderived pickering emulsion based on chitosan/trialkyl phosphine oxides applied to selective recovery of rare Earth elements 

      Lapo Calderón, Byron Gonzalo; Pavón Regaña, Sandra; Hoyo Pérez, Javier; Fortuny Sanromá, Agustín; Scapan, Paul; Bertau, Martin; Sastre Requena, Ana María (2023-12-13)
      Article
      Open Access
      A novel biobased pickering emulsion (PE) material was prepared by the encapsulation of Cyanex 923 (Cy923) into chitosan (CS) to selectively recover rare earth elements (REEs) from the aqueous phase. The preparation of PE ...
    • 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 by using a novel alginate-based sorbent: Comparison with Al2O3 particles 

      Demey Cedeño, Hary; Barrón Zambrano, Jesús Alberto; Mhadhbi, Takoua; Miloudi, Hafida; Yang, Zhen; Ruiz Planas, Montserrat; Sastre Requena, Ana María (Multidisciplinary Digital Publishing Institute (MDPI), 2019-09-01)
      Article
      Open Access
      Boron removal was evaluated in the present work by using calcium alginate beads (CA) and a novel composite based on alginate–alumina (CAAl) as sorbents in a batch system. The effects of different parameters such as pH, ...
    • 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 ...
    • Ca-alginate/carboxymethyl chitosan/Ni0.2Zn0.2Fe2.6O4 magnetic bionanocomposite: Synthesis, characterization and application for single adsorption of Nd+3, Tb+3, and Dy+3 rare earth elements from aqueous media 

      Javadian, Hamedreza; Ruiz Planas, Montserrat; Sastre Requena, Ana María (2020-05-15)
      Article
      Open Access
      This study aims to research the adsorption of Nd+3, Tb+3, and Dy+3 from aqueous media onto the magnetic calcium alginate/carboxymethyl chitosan/Ni0.2Zn0.2Fe2.6O4 (CA/CMC/Ni0.2Zn0.2Fe2.6O4) bionanocomposite in a single ...
    • 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
      Open Access
      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 ...
    • Comparison of Cyanex 272 and Cyanex 572 for the separation of Neodymium froma Nd/Tb/Dy mixture by pertraction 

      Pavón Regaña, Sandra; Kutucu, Merve; Coll Ausió, Mª Teresa; Fortuny Sanromá, Agustín; Sastre Requena, Ana María (2017-09-29)
      Article
      Open Access
      Recovering Nd(III) from wastemagnets is an alternative method to satisfy the increasing demand for this metal. For this reason, the separation of Nd from a mixture containing Nd/Tb/Dy in chloride media using Cyanex 272 and ...
    • Counter-current separation of cobalt(II)–nickel(II) from aqueous sulphate media with a mixture of Primene JMT-Versatic 10 diluted in kerosene 

      Belhadj, Nadia; Benabdallah, Tayeb; Coll Ausió, Mª Teresa; Fortuny Sanromá, Agustín; Hadj Youcef, Mohammed; Sastre Requena, Ana María (2019-02-27)
      Article
      Open Access
      This work claims the use of the mixture of Primene®JMT-Versatic 10 [HJMT+·Versatic-] IL diluted in Kerosene as an extractant for cobalt/nickel separation from sulphate media by solvent extraction technique, its application ...
    • 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. ...
    • Equilibri iònic i cinètica : problemes 

      Aguilar Sanjuán, Manuel; Casas Pons, Ignasi; Cortina Pallás, José Luís; Farran Marsà, Adriana; Florido Pérez, Antonio; Giménez Izquierdo, Francisco Javier; Martínez Martínez, María del Rosario; Miralles Esteban, Núria; Pablo Ribas, Joan de; Sastre Requena, Ana María (Edicions UPC, 1996)
      Book
      Restricted access to the UPC academic community
      Aquest llibre s'adreça principalment als alumnes que cursen les assignatures Química I, de la titulació d'Enginyeria Industrial, i Equilibris iònics, de la titulació d'Enginyeria Química, ambdues impartides a l'Escola ...
    • Equilibri iònic i cinètica : problemes 

      Aguilar Sanjuán, Manuel; Casas Pons, Ignasi; Cortina Pallás, José Luís; Farran Marsà, Adriana; Florido Pérez, Antonio; Giménez Izquierdo, Francisco Javier; Martínez Martínez, María del Rosario; Miralles Esteban, Núria; Pablo Ribas, Joan de; Sastre Requena, Ana María (Edicions UPC, 2004)
      Book
      Restricted access to the UPC academic community
      Aquest llibre s'adreça principalment als alumnes que cursen les assignatures Química I, de la titulació d'Enginyeria Industrial, i Equilibris iònics, de la titulació d'Enginyeria Química, ambdues impartides a l'Escola ...
    • Equilibri iònic i cinètica : problemes 

      Aguilar Sanjuán, Manuel; Casas Pons, Ignasi; Cortina Pallás, José Luís; Farran Marsà, Adriana; Florido Pérez, Antonio; Giménez Izquierdo, Francisco Javier; Martínez Martínez, María del Rosario; Miralles Esteban, Núria; Pablo Ribas, Joan de; Sastre Requena, Ana María (Edicions UPC, 2003)
      Book
      Restricted access to the UPC academic community
      Aquest llibre s'adreça principalment als alumnes que cursen les assignatures Química I, de la titulació d'Enginyeria Industrial, i Equilibris iònics, de la titulació d'Enginyeria Química, ambdues impartides a l'Escola ...
    • Equilibris químics en dissolució 

      Aguilar Sanjuán, Manuel; Casas Pons, Ignasi; Cortina Pallás, José Luís; Farran Marsà, Adriana; Florido Pérez, Antonio; Giménez Izquierdo, Francisco Javier; Martínez Martínez, María del Rosario; Miralles Esteban, Núria; Pablo Ribas, Joan de; Sastre Requena, Ana María (Edicions UPC, 2005)
      Book
      Restricted access to the UPC academic community
      Aquest llibre s'adreça principalment als alumnes que cursen les assignatures Química I, de la titulació d'Enginyeria Industrial, i Equilibris iònics, de la titulació d'Enginyeria Química, ambdues impartides a l'Escola ...