Blar i USN Open Archive på forfatter "Haugen, Hildegunn Hegna"

Viser treff 1-4 av 4

    • Chemical equilibrium model to investigate scaling in moving bed biofilm reactors (MBBR) 

      Sivalingam, Vasan; Ibrahim, Osama M.; Kukankov, Sergey; Omodara, Babafemi; Janka, Eshetu; Wang, Shuai; Dinamarca, Carlos; Haugen, Hildegunn Hegna; Bakke, Rune (Peer reviewed; Journal article, 2019)
      Moving bed biofilm reactor (MBBR) is a robust, flexible and compact technology for treatment of medium to high strength wastewater. However, while treating with high concentration of ammonium, phosphorus and metal ions, ...

    • Enhanced Digestate Nitrification in Sequencing Batch Reactors (SBR) 

      Gyawali, Sandeep (Master thesis, 2021)
      The liquid fraction of digestates from anaerobic digestion contains a high concentration of Ammonium, which can be transformed into liquid “organic fertilizer”. Direct application of these digestates as fertilizer would ...

    • Pyrolysis of plastic waste to environmental friendly products 

      Pandey, Umesh; Stormyr, Jan Arild; Hassani, Alireza; Jaiswal, Rajan; Haugen, Hildegunn Hegna; Moldestad, Britt Margrethe Emilie (Journal article; Peer reviewed, 2020)
      Pyrolysis of plastics is one of the efficient ways to recover plastic waste. Pyrolysis refers to a thermal degradation of long-chain organic molecules into smaller hydrocarbons. Many ongoing research studies are trying to ...

    • Study on the Start-up of Anammox Process in Lab-scale Moving Bed Biofilm Reactor (MBBR) 

      Pathak, Sabin (Master thesis, 2021)
      The discharge of wastewater containing nitrogen compounds is harmful to marine life and human health, hence, many biological nitrogen removal methods are in use in many treatment plants in recent years. Among the several ...