Now showing items 1-4 of 4

  • Activation process of air stable nanoscale zero-valent iron particles 

    Ribas Fargas, David; Cernik, M.; Benito Páramo, José Antonio; Filip, J.; Martí Gregorio, Vicenç (2017-07-15)
    Article
    Open Access
    Nanoscale Zero Valent Iron (nZVI) represents a promising material for subsurface water remediation technology. However, dry, bare nZVI particles are highly reactive, being pyrophoric when they are in contact with air. The ...
  • Improvements in nanoscale zero-valent iron production by milling through the addition of alumina 

    Ribas Fargas, David; Cernik, M.; Martí Gregorio, Vicenç; Benito Páramo, José Antonio (2016-06-02)
    Article
    Open Access
    A new milling procedure for a cost-effective production of nanoscale zero-valent iron for environmental remediation is presented. Conventional ball milling of iron in an organic solvent as Mono Ethylene Glycol produces ...
  • In situ groundwater remediation treatments : natural denitrification study and nano zero valent iron production 

    Ribas Fargas, David (Universitat Politècnica de Catalunya, 2017-03-14)
    Doctoral thesis
    Open Access
    Freshwater is a scarce resource, threatened by an ongoing pollution, global climate change and industrialization. Among other freshwater sources, groundwater is by far the most important source of usable freshwater but due ...
  • 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
    Open Access
    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 ...