BioH2 from Dark Fermentation of OFMSW: Effect of the Hydraulic Retention Time and Organic Loading Rate

Food wastes represent one third of all food produced worldwide. It is crucial to both prevent the production waste and recover wasted fraction with aim valorizing it. In this context, conversion organic municipal solid (OFMSW) into bioH2 by dark fermentation (DF) an important technology valorize these renewable fuel. Nevertheless, DF OFMSW needs be optimized for critical operational parameters. The main purposes study were investigate (i) effect HRT during continuous through (ii) loading rate (OLR) ruled HRT. work, three HRTs (4, 5, 6 d) tested in a mesophilic stirred-tank reactor (CSTR). 4, days, corresponding OLRs 23.6, 18.0, 10.6 g volatile solids (VS)·L?1·d?1, respectively, showed yields 8.48, 18.2, 1.64 L·kg?1 VSinfluent H2 content approximately 25, 32, 5% v/v, respectively. An accumulation fatty acids (VFAs) was registered decrease HRT, causing production. 5 d most favorable condition.