Browsing by Author "Stüber, Frank Erich"

Now showing items 1-14 of 14

    • Direct liquid-liquid extraction of lipid from municipal sewage sludge for biodiesel production 

      Olkiewicz, Magdalena; Caporgno, Martin Pablo; Fortuny Sanromá, Agustín; Stüber, Frank Erich; Fabregat Llagostera, Azael; Font Capafons, Josep; Bengoa, Christophe José (2014-12-01)
      Article
      Open Access
      Municipal sludge from wastewater treatment plants is a promising lipid feedstock for biodiesel production as it contains a significant amount of lipids. However, the energy necessary to remove its high water content is a ...

    • Effects of pre-treatments on the lipid extraction and biodiesel production from municipal WWTP sludge 

      Olkiewicz, Magdalena; Fortuny Sanromá, Agustín; Stüber, Frank Erich; Fabregat Llagostera, Azael; Font Capafons, Josep; Bengoa, Christophe José (2015-02-01)
      Article
      Open Access
      Biodiesel production is currently limited due to high raw material costs. The potential of using sludge from municipal wastewater treatment plants as an alternative lipid feedstock was investigated. Four different types ...

    • Enhanced degradation of phenol by a fenton-like system (Fe/EDTA/h2 o2) at circumneutral pH 

      Messele, Selamawit Ashagre; Bengoa, Christophe José; Stüber, Frank Erich; Giralt Marcé, Jaume; Fortuny Sanromá, Agustín; Fabregat Llagostera, Azael; Font Capafons, Josep (2019-05-01)
      Article
      Open Access
      This work deals with the degradation of phenol based on the classical Fenton process, which is enhanced by the presence of chelating agents. Several iron-chelating agents such as ethylenediaminetetraacetic acid (EDTA), ...

    • Evaluation of different sludges from WWTP as a potential source for biodiesel production 

      Olkiewicz, Magdalena; Fortuny Sanromá, Agustín; Stüber, Frank Erich; Fabregat Llangotera, Azael; Font Capafons, Josep; Bengoa, Christophe José (2012)
      Article
      Restricted access - publisher's policy
      Biodiesel expansion is currently limited due to high raw material costs for its produc tion. The potential of using sludge from municipal wastewater treatment plants as an alternative lipid feedstock for biodiesel ...

    • Extraction and purification of hydrolytic enzymes from activated sludge 

      Nabarlatz, Debora; Stüber, Frank Erich; Font Capafons, Josep; Fortuny Sanromá, Agustín; Fabregat Llangotera, Azael; Bengoa, Christophe José (2009)
      Conference lecture
      Restricted access - publisher's policy
      A major proportion of the organic matter contained by domestic wastewater is mainly formed by lipids, proteins and carbohydrates. In order to degrade this organic matter, microorganisms produce hydrolytic enzymes like ...

    • Fenton coupled with nanoflitration for elimination of tartrazine 

      Escalona, I.; Stüber, Frank Erich; Fortuny Sanromá, Agustín; Bengoa, Christophe José; Fabregat Llangotera, Azael; Font Capafons, Josep (2012)
      Article
      Restricted access - publisher's policy

    • Immobilisation of horseradish peroxidase on Eupergit®C for the enzymatic elimination of phenol 

      Pramparo, Laura; Stüber, Frank Erich; Font Capafons, Josep; Fortuny Sanromá, Agustín; Fabregat Llangotera, Azael; Bengoa, Christophe José (2010-05-15)
      Article
      Restricted access - publisher's policy
      In this study, three different approaches for the covalent immobilisation of the horseradish peroxidase (HRP) onto epoxy-activated acrylic polymers (Eupergit®C) were explored for the first time, direct HRP binding to the ...

    • Performance comparison of torus and magnetically-stirred reactor for the enzymatic elimination of phenol 

      Pramparo, Laura; Stüber, Frank Erich; Font Capafons, Josep; Fortuny Sanromá, Agustín; Fabregat Llangotera, Azael; Bengoa, Christophe José (2009)
      Conference lecture
      Restricted access - publisher's policy
      The goal of this work is the comparison of the performances of a torus and a stirred reactor for the enzymatic elimination of phenol. High degrees of conversion were obtained in both reactors for the three initial ...

    • Performance of sludge based catalysts in catalytic wet oxidation of phenol 

      Marques, Rita R.N.; Font Capafons, Josep; Fortuny Sanromá, Agustín; Bengoa, Christophe José; Fabregat Llangotera, Azael; Stüber, Frank Erich (2009)
      Conference lecture
      Restricted access - publisher's policy
      The catalytic potential of sludge based materials produced by steam or CO2 activation from non treated dewatered raw sludge or dewatered mesophilic anaerobically digested sludge were tested in the oxidation of phenol. ...

    • Phenol degradation by heterogeneous Fenton-like reaction using Fe supported over activated carbon 

      Messele, S. A.; Stüber, Frank Erich; Bengoa, Christophe José; Fortuny Sanromá, Agustín; Fabregat Llangotera, Azael; Font Capafons, Josep (2012)
      Article
      Restricted access - publisher's policy
      The main objective of the work is to prepare catalysts based on iron supported over activated carbon (AC) and to test its activity for catalytic wet peroxide oxidation (CWPO) of phenol in a batch system. The catalysts were ...

    • Sewage sludge based catalysts for catalytic wet air oxidation of phenol: preparation, characterisation and catalytic performance 

      Graham, N.J.D.; Fowler, G.D.; Marques, Rita R. N; Stüber, Frank Erich; Smith, K.M; Fabregat Llangotera, Azael; Bengoa, Christophe José; Font Capafons, Josep; Fortuny Sanromá, Agustín; Pullket, S. (2011-01)
      Article
      Restricted access - publisher's policy
      In this study the use of novel CWAO catalysts, namely potentially low cost, sewage sludge derived activated carbons was explored. Two types of municipal sludge were used: dewatered raw filter cake and dewatered mesophilic ...

    • Texture-modified activated carbons as catalysts in biodecolourisation of azo dyes 

      Mezohegyi, Gergo; Gonçalves, Filomena; Órfao, José J.M.; Bengoa, Christophe José; Stüber, Frank Erich; Font Capafons, Josep; Fortuny Sanromá, Agustín; Fabregat Llangotera, Azael (2009)
      Conference lecture
      Restricted access - publisher's policy
      Considerable attention has been focused on the reduction of azo dyes discharged from dyeing, textile and other industries since some of them or their metabolites may cause toxicity. The efficient treatment of these ...

    • Treatment of phenol effuents coupling Fenton's oxidation and nanofiltration 

      Bernat Camí, Xavier; Fortuny Sanromá, Agustín; Bengoa, Christophe José; Stüber, Frank Erich; Fabregat Llangotera, Azael; Font Capafons, Josep (2009)
      Conference report
      Open Access

    • Trickle bed reactor for the oxidation of phenol over active carbon catalyst 

      Gabbiye, Nigus; Font Capafons, Josep; Fortuny Sanromá, Agustín; Bengoa, Christophe José; Fabregat Llangotera, Azael; Stüber, Frank Erich (2009)
      Conference lecture
      Restricted access - publisher's policy
      The catalytic wet air oxidation of phenol using activated carbon has been performed in a laboratory trickle bed reactor over a wide range of operating variables (PO2, T, FL and Cph,o) and hydrodynamic conditions. The ...