Fonts, Isabel; Gea, Gloria; Azuara, Manuel; Ábrego, Javier - In: Renewable and Sustainable Energy Reviews 16 (2012) 5, pp. 2781-2805
The high output of sewage sludge, which is increasing during recent years, and the limitations of the existing means of disposing sewage sludge highlight the need to find alternative routes to manage this waste. Biomass and residues like sewage sludge are the only renewable energy sources that...