Effect of total solids content on biohydrogen production and lactic acid accumulation during dark fermentation of organic waste biomass
2018
Ghimire, Anish | Trably, Eric | Frunzo, Luigi | Pirozzi, Francesco | Lens, Piet N.L. | Esposito, Giovanni | Cazier, Elisabeth | Escudié, Renaud | University of Cassino and Southern Lazio [Cassino] | Nepal Engineering College ; Partenaires INRAE | Laboratoire de Biotechnologie de l'Environnement [Narbonne] (LBE) ; Institut National de la Recherche Agronomique (INRA)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro) | University of Naples Federico II = Università degli studi di Napoli Federico II | UNESCO-IHE Institute for Water Education ; UNESCO-IHE Institute for Water Education
International audience
اظهر المزيد [+] اقل [-]إنجليزي. Production of biohydrogen and related metabolic by-products was investigated in Solid State Dark Fermentation (SSDF) of food waste (FW) and wheat straw (WS). The effect of the total solids (TS) content and H2 partial pressure (ppH2), two of the main operating factors of SSDF, were investigated. Batch tests with FW at 10, 15, 20, 25 and 30% TS showed considerable effects of the TS on metabolites distribution. H2 production was strongly inhibited for TS contents higher than 15% with a concomitant accumulation of lactic acid and a decrease in substrate conversion. Varying the ppH2 had no significant effect on the conversion products and overall degradation of FW and WS, suggesting that ppH2 was not the main limiting factor in SSDF. This study showed that the conversion of complex substrates by SSDF depends on the substrate type and is limited by the TS content.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
المعلومات البيبليوغرافية
تم تزويد هذا السجل من قبل Institut national de la recherche agronomique