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Browsing NTNU Open by Author "Nordgård, Anna Synnøve Røstad"

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    • Anaerobic digestion of pig manure supernatant at high ammonia concentrations characterized by high abundances of Methanosaeta and non-euryarchaeotal archaea 

      Nordgård, Anna Synnøve Røstad; Bergland, Wenche Hennie; Vadstein, Olav; Mironov, Vladimir; Bakke, Rune; Østgaard, Kjetill; Bakke, Ingrid (Journal article; Peer reviewed, 2017)
      We examined the effect of ammonium and temperature on methane production in high rate upflow anaerobic sludge bed reactors treating pig manure supernatant. We operated four reactors at two ammonium concentrations (‘low’ ...
    • High rate manure supernatant digestion 

      Bergland, Wenche Hennie; Dinamarca, Carlos; Torabzadegan, Mehrdad; Nordgård, Anna Synnøve Røstad; Bakke, Ingrid; Bakke, Rune (Journal article; Peer reviewed, 2015)
      The study shows that high rate anaerobic digestion may be an efficient way to obtain sustainable energy recovery from slurries such as pig manure. High process capacity and robustness to 5 % daily load increases are observed ...
    • Mapping anaerobic sludge bed community adaptations to manure supernatant in biogas reactors 

      Nordgård, Anna Synnøve Røstad; Bergland, Wenche Hennie; Bakke, Rune; Østgaard, Kjetill; Bakke, Ingunn (Journal article; Peer reviewed, 2018)
      In upflow anaerobic sludge bed (UASB) reactors, biomass present as granules allows for long solids retention time. Here, granules from a process treating pulp and paper industrial wastewater were successfully applied as ...
    • Microbial community analysis in developing biogas reactor technology for Norwegian agriculture 

      Nordgård, Anna Synnøve Røstad (Doctoral theses at NTNU;2017:306, Doctoral thesis, 2017)
      Aims Norway’s goal is to be climate neutral within the year 2030 according to Stortingsmelding nr. 39 (Det Kongelige Landbruks- og Matdepartementet 2008-2009) and agriculture needs to be a part of the solution. This ...

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