Enhanced hydrogen production by a sequential dark and photo fermentation process: Effects of initial feedstock composition, dilution and microbial population

Niño-Navarro, C.; Chairez, Isaac; Christen, Pierre; Canul-Chan, M.; García-Peña, E.I.

doi:10.1016/j.renene.2019.09.024

Cited by 53 publications

(4 citation statements)

References 52 publications

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“…A combination of dark and photofermentation has been used to enhance H 2 production [169]. Dark fermentation produces alcohols and organic acids as by-products, which serve as a carbon source for the bacteria involved in photofermentative H 2 production [170].…”

Section: Mixed Fermentationmentioning

confidence: 99%

Biotechnological Valorization of Waste Glycerol into Gaseous Biofuels—A Review

Kazimierowicz,

Dębowski,

Zieliński

et al. 2024

Energies

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The supply of waste glycerol is rising steadily, partially due to the increased global production of biodiesel. Global biodiesel production totals about 47.1 billion liters and is a process that involves the co-production of waste glycerol, which accounts for over 12% of total esters produced. Waste glycerol is also generated during bioethanol production and is estimated to account for 10% of the total sugar consumed on average. Therefore, there is a real need to seek new technologies for reusing and neutralizing glycerol waste, as well as refining the existing ones. Biotechnological means of valorizing waste glycerol include converting it into gas biofuels via anaerobic fermentation processes. Glycerol-to-bioenergy conversion can be improved through the implementation of new technologies, the use of carefully selected or genetically modified microbial strains, the improvement of their metabolic efficiency, and the synthesis of new enzymes. The present study aimed to describe the mechanisms of microbial and anaerobic glycerol-to-biogas valorization processes (including methane, hydrogen, and biohythane) and assess their efficiency, as well as examine the progress of research and implementation work on the subject and present future avenues of research.

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Section: Mixed Fermentationmentioning

confidence: 99%

Biotechnological Valorization of Waste Glycerol into Gaseous Biofuels—A Review

Kazimierowicz,

Dębowski,

Zieliński

et al. 2024

Energies

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“…Alternatively, both functional groups of bacteria are co-cultivated, and dark fermentation and photofermentation occur in the same reactor as one-step dark-photofermentation. Enhancing H 2 production in combined processes was achieved, for example, using a mixture of fruit and vegetable waste and cheese whey powder [72]. In the dark stage, low H 2 production resulted from the metabolism directed to lactate production.…”

Section: Production Of Biohydrogenmentioning

confidence: 99%

Agricultural Wastes and Their By-Products for the Energy Market

Zielińska,

Bułkowska

2024

Energies

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The conversion of lignocellulosic agricultural waste into biofuels and other economically valuable compounds can reduce dependence on fossil fuels, reduce harmful gas emissions, support the sustainability of natural resources, including water, and minimize the amount of waste in landfills, thus reducing environmental degradation. In this paper, the conversion of agricultural wastes into biomethane, biohydrogen, biodiesel, bioethanol, biobutanol, and bio-oil is reviewed, with special emphasis on primary and secondary agricultural residues as substrates. Some novel approaches are mentioned that offer opportunities to increase the efficiency of waste valorization, e.g., hybrid systems. In addition to physical, chemical, and biological pretreatment of waste, some combined methods to mitigate the negative effects of various recalcitrant compounds on waste processing (alkali-assisted thermal pretreatment, thermal hydrolysis pretreatment, and alkali pretreatment combined with bioaugmentation) are evaluated. In addition, the production of volatile fatty acids, polyhydroxyalkanoates, biochar, hydrochar, cellulosic nanomaterials, and selected platform chemicals from lignocellulosic waste is described. Finally, the potential uses of biofuels and other recovered products are discussed.

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“…Some articles, focusing on this double-stage process, have been published in the last year [144]. The dark-fermentation effluents, with low-butyrate and high lactate concentration, were used to maximize the hydrogen yield in photo-fermentation process, using fruit and vegetable waste and cheese whey powder [145]. The strategy was optimizing the C/N ratio to take advantage from higher hydrogen yield obtainable with lactate in photo-fermentation.…”

Section: Integrated Systemsmentioning

confidence: 99%

Main Hydrogen Production Processes: An Overview

et al. 2021

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Due to its characteristics, hydrogen is considered the energy carrier of the future. Its use as a fuel generates reduced pollution, as if burned it almost exclusively produces water vapor. Hydrogen can be produced from numerous sources, both of fossil and renewable origin, and with as many production processes, which can use renewable or non-renewable energy sources. To achieve carbon neutrality, the sources must necessarily be renewable, and the production processes themselves must use renewable energy sources. In this review article the main characteristics of the most used hydrogen production methods are summarized, mainly focusing on renewable feedstocks, furthermore a series of relevant articles published in the last year, are reviewed. The production methods are grouped according to the type of energy they use; and at the end of each section the strengths and limitations of the processes are highlighted. The conclusions compare the main characteristics of the production processes studied and contextualize their possible use.

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Enhanced hydrogen production by a sequential dark and photo fermentation process: Effects of initial feedstock composition, dilution and microbial population

Cited by 53 publications

References 52 publications

Biotechnological Valorization of Waste Glycerol into Gaseous Biofuels—A Review

Biotechnological Valorization of Waste Glycerol into Gaseous Biofuels—A Review

Agricultural Wastes and Their By-Products for the Energy Market

Main Hydrogen Production Processes: An Overview

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