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Pyrolysis water addition on the anaerobic co-digestion of food waste and animal slurries

Pyrolysis water addition on the anaerobic co-digestion of food waste and animal slurries. Dr Marie Kirby 1 Mr P. Moran 1 , Dr R. Wilkinson 1 and Prof A. Hornung 2 1 Harper Adams University College, Newport, Shropshire 2 European Bioenergy Research Institute, Aston University, Birmingham .

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Pyrolysis water addition on the anaerobic co-digestion of food waste and animal slurries

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  1. Pyrolysis water addition on the anaerobic co-digestion of food waste and animal slurries Dr Marie Kirby1 Mr P. Moran1, Dr R. Wilkinson1 and Prof A. Hornung2 1 Harper Adams University College, Newport, Shropshire 2 European Bioenergy Research Institute, Aston University, Birmingham

  2. Objectives of the research project… To determine... • The effect of different sources of pyrolysis waters upon the anaerobic digestion process • The effect of incorporation level of pyrolysis waters upon the anaerobic digestion process Analyses to be undertaken - analysis of biogas yield, biogas composition and digestate composition

  3. Experimental design... • 4 x 4 factorial designed experiment, operated at 40°C • Type of pyrolysis water – produced from wood pellets, miscanthus, dairy fibre solids and compost material • Incorporation level – control (0g/l), 30g/l, 60g/l and 90g/l of pyrolysis water in addition to the commercial feed substrate (food waste and mixed animal slurries)

  4. What is anaerobic digestion? • Four main bacterial groups • breakdown organic material • in an environment without • oxygen and produce • biogas

  5. Results to date… • Preliminary experiment • Identified the preferred inclusion levels of pyrolysis waters • Main experiment • One replicate • Each type of pyrolysis water digested effectively • Inclusion level had an effect

  6. Acknowledgements… Thank you for listening Any questions?

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