Now showing items 7-14 of 14

  • Phosphate recovery by synthetic zeolite and fly-ash: sorption characterization and performance assessment in hybrid sorption-ultrafiltration pilot plant 

    Galera Bella, Marc (Universitat Politècnica de Catalunya, 2015-09)
    Master thesis (pre-Bologna period)
    Open Access
    Phosphorus is a limited global resource; current studies have to be focused mainly on its recovery rather than its disposal. Thereby, the operational lifespan of this resource would be extended and in turn the phosphorus ...
  • Phosphate recovery using calcium zeolite in ultrafiltration pilot plant 

    La Rotonda Ferrer, Pablo (Universitat Politècnica de Catalunya, 2015-10)
    Bachelor thesis
    Open Access
    One of the most important ecological problems is the eutrophication, this process consist in the uncontrolled growing of algae and phytoplankton, which can destroy entire aquatic ecosystems. The reason of this process ...
  • Powdered Ca-activated zeolite for phosphate removal from treated waste-water 

    Hermassi, Mehrez; Valderrama Angel, César Alberto; Moreno Palmerola, Natalia; Font Piqueras, Oriol; Querol Carceller, Xavier; Batis, Narjes; Cortina Pallás, José Luís (2016-01-01)
    Article
    Restricted access - publisher's policy
    Background: A powdered zeolitic material synthesised from fly ash (FA) (NaP1-FA) and its calcium modified form (CaP1-NA) were studied as sorbent materials for the recovery of phosphate from treated waste-water effluents. ...
  • Qué són les Zeolites? 

    Serrano, Daniel (2010-04-28)
    Audiovisual
    Open Access
  • Simultaneous ammonium and phosphate removal by metal inorganic salt modification of natural zeolite 

    Ventosa i Capell, Blanca (Universitat Politècnica de Catalunya, 2015-01)
    Bachelor thesis
    Open Access
    Nutrients discharge into receiving waters can cause an environmental problem capable of deathly altering ecosystems. Natural zeolites are low cost resources with ion exchange capacity that have been widely studied. This ...
  • Simultaneous phosphate and ammonium removal from aqueous solution by a hydrated aluminum oxide modified natural zeolite 

    Guaya, Diana; Valderrama Angel, César Alberto; Farran Marsà, Adriana; Armijos, Chabaco; Cortina Pallás, José Luís (2015-07-01)
    Article
    Restricted access - publisher's policy
    A natural zeolite (Z-N), rich in clinoptilolite, was modified (Z-Al) by incorporation of hydrated aluminium oxide (HAlO) for the simultaneous phosphate and ammonium removal. The incorporation of surface hydroxyl groups ...
  • Synthesis of zeolites from coal fly ash: an overview 

    Querol, Xavier; Moreno, N.; Umaña, J.C.; Alastuey, A.; Hernández Chiva, Emilio; López-Soler, A.; Plana, F. (2002-05-02)
    Article
    Restricted access - publisher's policy
    Coal combustion by-products production in USA and EU is estimated in around 115 million tons per year. A large portion of this production is accounted for the coal fly ash (CFA). Cement and concrete manufacturing consumes ...
  • Zeolite-coated interdigital capacitors for humidity sensing 

    Urbiztondo, M.; Pellejero, I.; Rodríguez Martínez, Ángel; Pina Iritia, María Pilar; Santamaría Ramiro, Jesús Marcos (2011-05-06)
    Article
    Restricted access - publisher's policy
    Inter-digital capacitors (IDCs) with electrode gaps of 10 or 50 microns have been coated with zeolite films consisting of different zeolites with Si/Al ratios ranging from 1.5 (zeolite A) to infinite (silicalite). The ...