Abstract: Solid anaerobic digestion batch (SADB) with liquid digestate recirculation and wet anaerobic digestion of organic waste were experimentally investigated. SADB was operated at an organic loading rate (OLR) of 4.55 kgVS/m3 day, generating about 252 NL CH4/kgVS, whereas the wet digester was operated at an OLR of 0.9 kgVS/m3 day, generating about 320 NL CH4/kgVS. The initial total volatile fatty acids concentrations for SADB and wet digestion were about 12,500 mg/L and 4500 mg/L, respectively. There were higher concentrations of ammonium and COD fo...
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Topics: 
Food science
Pulp and paper industry