Proceedings

Scenarios for improved biogas yield through pyrolysis: POSTER

Flatabo, G.O.1,2, Kjorlaug Svennevik, O.2, Jahre Nilsen, P.2, Wein, A.2 and Hennie Bergland, W.1, 1University of South-Eastern Norway, 2VOW, Norway

(free)

  • Biosolids from sewage sludge have limited uses, and further restrictions may be implemented.
  • Content of microplastics, PFAS and other emerging pollutants affect end user opinion of biosolids land application.
  • Anaerobic digestion (AD) provide stabilization of sewage sludge and energy, but does not affect many pollutants.
  • Pyrolysis converts dry biosolids into sludge biochar and energy-rich pyrolysis gas.
  • Pyrolysis gas contains varying amounts of H2, CO2, CO, CH4 , and other C2+gases, and condensates: a mix of H2O and organic chemicals.
  • Pyrolysis gas and condensates have been successfully converted to biogas (CH4+ CO2) through AD in literature (Torri et al., 2020; Seyedi et al., 2020).

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