Ara es mostren els items 19-33 de 33

    • Modelling enhanced groundwater denitrification in batch micrococosm tests 

      Calderer, M.; Jubany, Irene; Pérez Magrané, Ramon; Martí Gregorio, Vicenç; Pablo Ribas, Joan de (2010)
      Article
      Accés restringit per política de l'editorial
      In the last few years, enhanced in situ denitrification has gained a lot of interest as a reliable bioremediation option to remove nitrate from groundwater. However, denitrification modelling in the subsurface environment ...
    • Monte carlo simulation as a tool to show the influence of the human factor into the quantitative risk assessment 

      González Dan, José Roberto; Guix Pujolar, Alan; Martí Gregorio, Vicenç; Arnaldos Viger, Josep; Darbra Roman, Rosa Maria (2016-07)
      Article
      Accés obert
      The frequency of occurrence of an accident is a key aspect in the risk assessment field. Vari- ables such as the human factor (HF), which is a major cause of undesired events in process industries, are usually not considered ...
    • Nitrate and nitrite reduction by ferrous iron minerals in polluted groundwater: Isotopic characterization of batch experiments 

      Margalef Marti, Rosanna; Carrey, Raul; Benito Páramo, José Antonio; Martí Gregorio, Vicenç; Soler, Albert; Otero, Neus (2020-08-20)
      Article
      Accés obert
      Since nitrate (NO3-) has been related to human health and environmental problems, safe and sustainable strategies to remediate polluted water bodies must be investigated. This work aims to assess the feasibility of using ...
    • On-line measurement of water quality at Besòs estuary: effect s of storm and heavy rain episodes 

      Martí Gregorio, Vicenç; Toma, Daniel; Cadena Muñoz, Francisco Javier; Gomáriz Castro, Spartacus; de Pablo, Joan; Cortina Pallás, José Luís; Gibert Agulló, Oriol; Florido Pérez, Antonio; Auge, Xavier; Valderrama, Cesar A. (2021)
      Text en actes de congrés
      Accés obert
      Only 40 % of European Union surface waters (rivers, lakes and transitional and coastal waters) are in good ecological status and only 38 % are in good chemical status (EEA, 2018). Ecological status is based on biological ...
    • REACTORS QUÍMICS (7è quadrimestre) 

      Martí Gregorio, Vicenç; Recasens Baxarías, Francisco Javier (Universitat Politècnica de Catalunya, 2013-01-07)
      Examen
      Accés restringit a la comunitat UPC
    • Reclamation of urban pollution impacted groundwater by advanced treatment processes: Effect of prechlorination on the removal of metals, ammonium and NOM at pilot scale 

      Abenza Martínez, Misael; López Rodríguez, Julio; Fernández de Labastida Ventura, Marcos; De Pablo Ribas, Joan; Cortina Pallás, José Luís; Martí Gregorio, Vicenç; Gibert Agulló, Oriol (2023-08)
      Article
      Accés obert
      The need for new water resources in water scarcity regions has driven the exploration of water reclamation through a variety of treatment technologies. The present study aims at reclaiming impacted urban groundwater through ...
    • Sorption and mobility of Sb(V) in calcareous soils of Catalonia (NE Spain): Batch and column experiments 

      Martínez Lladó, Xavier; Valderrama Angel, César Alberto; Rovira Boixaderas, Miquel; Martí Gregorio, Vicenç; Giménez Izquierdo, Francisco Javier; Pablo Ribas, Joan de (2011-01-15)
      Article
      Accés restringit per política de l'editorial
      The sorption of Sb(V) onto natural calcareous soils was studied in batch and column experiments as a function of physicochemical properties of the soil, namely: organic matter, the active fraction of Fe and Al and the pH ...
    • Sorption of antimony (V) onto synthetic goethite in carbonate medium 

      Martinez-Llado, X; Martínez Lladó, Xavier; Pablo Ribas, Joan de; Giménez Izquierdo, Francisco Javier; Ayora Ibáñez, Carlos; Martí Gregorio, Vicenç; Rovira Boixaderas, Miquel (2008-06)
      Article
      Accés restringit per política de l'editorial
      The sorption kinetics of antimony(V) on synthetic goethite is very fast compared to the sorption of other metals on goethite (e.g. arsenic and selenium) and depends on temperature, with an activation energy of 49+9 kJ . ...
    • Sorption of selenium(IV) and selenium(VI) onto natural iron oxides: Goethite and hematite 

      Rovira Boixaderas, Miquel; Giménez Izquierdo, Francisco Javier; Martínez Martínez, María del Rosario; Martí Gregorio, Vicenç; Pablo Ribas, Joan de; Martinez-Llado, X; Duro, L (Elsevier, 2008-01)
      Article
      Accés restringit per política de l'editorial
      Selenium is a toxic element with a relatively high mobility in the natural waters. Iron oxy-hydroxides might play an important role in the migration of this element as well as on its removal from contaminated water. In ...
    • Subsurface nitrate reduction under wetlands takes place in narrow superficial zones 

      Ribas Fargas, David; Calderer, Montserrat; Martí Gregorio, Vicenç; Johnsen, A.R.; Aamand, Jens; Nilsson, B.; Jensen, J. K.; Engesgaard, P.; Morici, C. (2017-01-01)
      Article
      Accés obert
      This study aims to investigate the depth distribution of the Nitrate Reduction Potential (NRP) on a natural and a re-established wetland. The obtained NRP provides a valuable data of the driving factors affecting ...
    • Tailored carrier/bacteria technology for rehabilitation of areas with pesticide-containing pollution – AQUAREHAB WP2 

      Ronen, Z.; Weisbrod, N.; Adar, E.; Cohen, M.; Amiaz, Y.; Hermann, S.; Springael, D.; Sorensen, S.R.; Calderer, M.; Martí Gregorio, Vicenç; Bastiaens, L. (2013)
      Comunicació de congrés
      Accés obert
    • Thorium sorption onto magnetite and ferrihydrate in acidic conditions 

      Rojo, I.; Seco, F.; Rovira, M.; Giménez Izquierdo, Francisco Javier; Cervantes, G.; Martí Gregorio, Vicenç; De Pablo Ribes, Joan (2009-01-01)
      Article
      Accés restringit per política de l'editorial
      Sorption of Th(IV) onto two-line ferrihydrite and magnetite in NaClO4 solutions has been studied as a function of pH and ionic strength revealing that sorption onto both solids increases with pH while it is independent on ...
    • Uranium speciation in river sediments contaminated by phosphate ores 

      Meca, S.; Giménez Izquierdo, Francisco Javier; Casas Pons, Ignasi; Martí Gregorio, Vicenç; Pablo Ribas, Joan de (2012-03)
      Article
      Accés restringit per política de l'editorial
      Large amounts of phosphate ores with high concentrations of uranium were dumped by a phosphate plant into the Flix water reservoir in the Ebre River, Catalonia, NE Spain. These phosphate wastes have been mixed over the ...
    • Uranium speciation studies at alkaline pH and in the presence of hydrogen peroxide using time-resolved laser-induced fluorescence spectroscopy 

      Martínez Torrents, Albert; Meca, Sandra; Baumann, Nils; Martí Gregorio, Vicenç; Giménez Izquierdo, Francisco Javier; Pablo Ribas, Joan de; Casas Pons, Ignasi (2013-05)
      Article
      Accés restringit per política de l'editorial
      Time-resolved laser-induced fluorescence spectroscopy (TRLFS) was used to study the speciation of uranium(VI) at very alkaline pH (11–13), at room temperature and in the absence of CO2. In this case, at pH = 11, two different ...
    • Water-air volatilization factors to determine volatile organic compound (VOC) reference levels in water 

      Martí Gregorio, Vicenç; Pablo Ribas, Joan de; JUBANY, IRENE; Rovira, Miquel; Orejudo, Emili (2014-06-11)
      Article
      Accés obert
      The goal of this work is the modeling and calculation of volatilization factors (VFs) from water to air for volatile organic compounds (VOCs) in order to perform human health risk - base d reference levels (RLs) ...