Biohydrogen production in the suspended and attached microbial growth systems from waste pastry hydrolysate

Han, Wei; Hu, Yunyi; Li, Shiyi; Li, Feifei; Tang, Junhong

doi:10.1016/j.biortech.2016.07.009

Cited by 21 publications

(3 citation statements)

References 28 publications

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“…Aspergillus awamori and Aspergillus oryzae, which were utilized in solid state fermentation to produce glucoamylase and protease, were prepared as described in our previous study (Han et al, 2016a). The anaerobic sludge was collected from a local anaerobic wastewater treatment plant and heat pretreated in a water bath at 100 °C for 6 h.…”

Section: Microorganismsmentioning

confidence: 99%

Simultaneous dark fermentative hydrogen and ethanol production from waste bread in a mixed packed tank reactor

Han

et al. 2017

Journal of Cleaner Production

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Simultaneous dark fermentative hydrogen and ethanol production from waste bread in a mixed packed tank reactor (MPTR) was investigated. Waste bread was first hydrolyzed by the produced enzymes to generate the waste bread hydrolysate which was subsequently introduced to the MPTR for dark fermentative hydrogen and ethanol production. The optimal hydrogen and ethanol production rates were 15.01 mmol/(h•L) and 23.25 mmol/(h•L) when the organic loading rate reached 32 g/(L•d). The unit hydrogen and ethanol production were 4.87 mmol hydrogen/g waste bread and 7.54 mmol ethanol/g waste bread, respectively. This study provided a new direction for economic and efficient hydrogen and ethanol production from waste bread.

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Section: Microorganismsmentioning

confidence: 99%

Simultaneous dark fermentative hydrogen and ethanol production from waste bread in a mixed packed tank reactor

Han

et al. 2017

Journal of Cleaner Production

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“…It is worth noting that, the physicochemical treatments could convert the macromolecules in food waste into utilizable forms when performing co‐digestion of food waste and sludge, but various inhibitory products (such as furfural) could also be produced. According to our previous researches, enzymatic hydrolysis could be a promising pretreatment, which could release the nutrients (glucose and free amino nitrogen) from food waste. Therefore, the Aspergillus awamori and Aspergillus oryzae could be used to hydrolyze the food waste to get the glucose and free amino nitrogen‐rich hydrolysate for hydrogen production.…”

Section: Future Researchmentioning

confidence: 99%

A state-of-the-art review of biohydrogen producing from sewage sludge

Yao

et al. 2018

Int J Energy Res

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Summary The amount of sewage sludge has increased remarkably with the acceleration of urbanization and the promotion of municipal wastewater treatment. Hydrogen is a promising clean fuel, considering the emerging global energy crisis and the growing demand for environmental protection. Producing hydrogen from sewage sludge through anaerobic fermentation is an economical and environmentally sustainable technology. Therefore, in this work, the mechanism of hydrogen production from sludge is critically reviewed and clarified. Current researches including sludge pretreatment and key factors affecting hydrogen production were investigated as well. Some challenges still remain, such as almost all studies feature experiments in batch cultures, and the hydrogen yields were not large. Further studies are needed in this arena, such as inhibiting hydrogen‐consuming bacteria, culturing, and screening high‐efficiency bacteria. The mechanism of hydrogen production from anaerobic co‐digestion, their factors, and techno‐economic evaluation need be further studied as well.

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“…Among these, the dark fermentation emerged as a particularly promising approach due to the low cost and broad availability of renewable substrates [6,8]. This technology may also help to recycle large volumes of household and industrial organic wastes, the accumulation of which represents a growing global problem [9]. For example, the uncontrolled decay of solid food wastes (SFW) at landfills is accompanied by the emission of toxic filtrates and gases (mercaptans, hydrogen sulfide, ammonia), while the discharge of sewage containing concentrated liquid food wastes (LFW) leads to eutrophication [10,11].…”

Section: Introductionmentioning

confidence: 99%

Hydrogen Dark Fermentation for Degradation of Solid and Liquid Food Waste

et al. 2021

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The constant increase in the amount of food waste accumulating in landfills and discharged into the water reservoirs causes environment pollution and threatens human health. Solid and liquid food wastes include fruit, vegetable, and meat residues, alcohol bard, and sewage from various food enterprises. These products contain high concentrations of biodegradable organic compounds and represent an inexpensive and renewable substrate for the hydrogen fermentation. The goal of the work was to study the efficiency of hydrogen obtaining and decomposition of solid and liquid food waste via fermentation by granular microbial preparation (GMP). The application of GMP improved the efficiency of the dark fermentation of food waste. Hydrogen yields reached 102 L/kg of solid waste and 2.3 L/L of liquid waste. The fermentation resulted in the 91-fold reduction in the weight of the solid waste, while the concentration of organics in the liquid waste decreased 3-fold. Our results demonstrated the potential of granular microbial preparations in the production of hydrogen via dark fermentation. Further development of this technology may help to clean up the environment and reduce the reliance on fossil fuels by generating green hydrogen via recycling of household and industrial organic wastes.

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Biohydrogen production in the suspended and attached microbial growth systems from waste pastry hydrolysate

Cited by 21 publications

References 28 publications

Simultaneous dark fermentative hydrogen and ethanol production from waste bread in a mixed packed tank reactor

Simultaneous dark fermentative hydrogen and ethanol production from waste bread in a mixed packed tank reactor

A state-of-the-art review of biohydrogen producing from sewage sludge

Hydrogen Dark Fermentation for Degradation of Solid and Liquid Food Waste

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