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Effect of total solids content on biohydrogen production and lactic acid accumulation during dark fermentation of organic waste biomass

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Jan 2018 Italy, France Publisher:Elsevier BVJournal:Bioresource Technology, volume 248, pages 180-186 (issn: 0960-8524,

Authors: Francesco Pirozzi; Renaud Escudié; Giovanni Esposito; Elisabeth A. Cazier; Piet N.L. Lens; Luigi Frunzo; Eric Trably; +2 Authors

doi: 10.1016/j.biortech.2017.07.062

pmid: 28764910

handle: 11588/703836 , 11580/67101

Effect of total solids content on biohydrogen production and lactic acid accumulation during dark fermentation of organic waste biomass

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Abstract

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.

Countries

Italy, France

Related Organizations

Département Sciences sociales, agriculture et alimentation, espace et environnement
France
University Federico II of Naples
Italy
University of Montpellier
France
Kathmandu
New Zealand
IHE Delft Institute for Water Education
Netherlands

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Keywords

[SDV.BIO]Life Sciences [q-bio]/Biotechnology, Environmental Engineering, Biohydrogen; Dark fermentation; Food waste; Lactic acid; Total solids, [SDV]Life Sciences [q-bio], biohydrogen, Bioengineering, total solids, dark fermentation, Renewable Energy, Biomass, Lactic Acid, Waste Management and Disposal, 660, Total solids, Sustainability and the Environment, Food waste, lactic acid, Lactic acid, [SDV.BIO] Life Sciences [q-bio]/Biotechnology, food waste, Food, [SDE]Environmental Sciences, Fermentation, Biohydrogen; Dark fermentation; Food waste; Lactic acid; Total solids; Bioengineering; Environmental Engineering; Renewable Energy, Sustainability and the Environment; Waste Management and Disposal, Biohydrogen, Dark fermentation, Hydrogen

Impact byBIP!

	citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	70
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Top 1%
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Top 10%
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Top 1%