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Showing 1 to 13 of 13 for “"Dark Fermentation"”.
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Hydrogen production via dark fermentation of carbohydrate-rich substrates
… contribute to CO<sub>2</sub> emissions.<br/><br/>Dark fermentation of carbohydrate-rich waste organics and energy crops to hydrogen using mixed microflora could contribute to the mix of technologies for producing hydrogen sustainably. Naturally available mixed microflora can be enriched e.g. by …
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Experimental investigation of dark fermentation of poplar leaves for biohydrogen production
… as a substrate for biohydrogen production via dark fermentation, an underexplored area. Through a series of 58 experimental trials, insightful findings were obtained about the hydrogen production process. The Gompertz function is used to model the experimental trial results which represent …
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Controlling dark fermentation of agro-industrial waste for valued organic acids production
… rich in organic acids through controlled dark fermentation (DF) of sheep cheese whey (CW). The main goal is the identification of the operating parameters which affect the reactions occurring during DF to engineer the process itself to produce specific organic acids (such as lactic, …
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Application of physicochemical and biological pretreatments to enhance volatile fatty acids production via Dark Fermentation from agri-food waste
… The benchmark bioprocess for VFA production is Dark Fermentation (DF), a mode of anaerobic digestion in which the methanogenic phase is inhibited. This approach is framed within the biorefinery concept, where residual biomass is processed comprehensively and sustainably to obtain multiple …
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The viability and public perception of the introduction of bio-hydrogen technology to Wales with specific reference to anaerobic dark fermentation of agricultural crops
… and in production) and cost. Specific aspects of dark fermentation technology were able to address a number of the participants concerns relating to pollution being moved to production sites. The groups' attitude to the development of hydrogen technology was supportive but with the caveat that …
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GENERATING BIOENERGY AND HIGH-VALUE PRODUCTS FROM HIGH SALINITY FOOD WASTE
… were explored using anaerobic digestion and dark fermentation processes, respectively. This study tested adding value to three organic waste streams: household food waste, high salinity food processing waste (composed of glycerin sludge from biodiesel production), and residual solids from …
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Produzione di H2 e CH4 da frazioni biodegradabili di rifiuti urbani e da siero lattiero-caseario
… of the acidogenic phase (producing through dark fermentation (DF) hydrogen and carbon dioxide as the gaseous products while releasing volatile fatty acids into the liquid solution) from the methanogenic stage (in which the residual and dissolved biodegradable organic matter from the first …
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Mesophilic Fermentative Hydrogen Production from Biomass
… fossil fuels. Hydrogen can be produced through dark fermentation with 1 mol hexose yielding a maximum of 4 mol hydrogen in association with acetate production, and 2 mol hydrogen in association with butyrate production. However, an economically and technically feasible process is yet to be …
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GREEN METHODS BASED ON ECO-FRIENDLY LIXIVIANTS FOR CRITI-CAL METAL RECOVERY FROM TUNGSTEN INDUSTRIAL SCRAPS
… consists in a low cost and easy to manage dark fermentation of cheese whey or second cheese whey, ex-ploiting the action of the indigenous biomass. The process is appropriately controlled with the view to obtaining a mixture with a desired pH and lactic acid concentration and minimizing the …
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Life cycle sustainability assessment of next generation energy infrastructure in Africa: Is there a case for biohydrogen after biomethane?
… installations. Earlier studies show that the dark fermentation process for biohydrogen production faces several challenges such as low yield and slower production rate. Furthermore, it is unclear whether the biohydrogen production technology offers potential benefits in terms of ecological and …
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Utilisation of biomass-derived gaseous fuels using solid-oxide fuel cells
… H2 and CO2 (biohydrogen) from processes such as dark fermentation or photo-fermentation are versatile feedstocks which can potentially be utilised in SOFC devices. In this work, solid oxide electrolysis of biohydrogen has been investigated for the first time and is compared directly with fuel …
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Sustainable biorefinery schemes for the recovery of energy, material and nutrient of residual biomass
Las actividades agrícolas son una fuente constante de biomasa residual que no suele tener un valor añadido durante las actividades de recolección o a lo largo de la industria de transformación de la materia prima, lo que afecta al medio ambiente donde se desarrollan estas actividades. La biomasa …
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Producción de biohidrógeno a partir de estiércol de res y lactosuero en fermentación oscura
Este trabajo propone una alternativa ecológica a los combustibles fósiles tradicionales, centrada en la obtención de biohidrógeno mediante el aprovechamiento de residuos orgánicos como el estiércol bovino y el lactosuero, con el fin de mitigar las emisiones de gases de efecto invernadero. Para ello …