Improvement of Agricultural or Agri-Food Wastes Conversion into Biogas by Ozonation Pretreatments

D. Jackowiak, A. Richefort, L.V. Hoang, D. Bassard, M. Nonus, A. Pauss & T. Ribeiro
Anaerobic digestion process is achieved through several stages: hydrolysis, acidogenesis, acetogenesis and methanogenesis. For organic matter degradation, the rate-limiting step is the hydrolysis. In order to improve hydrolysis and anaerobic digestion performance, one possibility is to use cell lyse pretreatments. Several pretreatments can be considered: mechanical, thermal or chemical treatments. The aim of these treatments is to solubilise organic compounds and/or to destroy tridimensional molecular structure (lignin or cellulose), and especially refractory compounds, in order...