Continuous biohydrogen production from a food industry waste: Influence of operational parameters and microbial community analysis

Alexandropoulou, Maria; Αντωνοπούλου, Γεωργία; Trably, Eric; Carrère, Hélène; Lyberatos, Gérasimos

doi:10.1016/j.jclepro.2017.11.078

Cited by 65 publications

(23 citation statements)

References 37 publications

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“…The inverse correlation between HRT and HPR implies higher carbohydrate availability for conversion into H 2 at lower HRT (higher OLR). Alexandropoulou et al (2018), Carrillo-Reyes et al (2014, Ottaviano et al (2017) and Akhlaghi et al (2017) also reported this behavior in their research, which corroborates the results in this article.…”

Section: Carbohydrate Conversion and Hydrogen Production Ratesupporting

confidence: 91%

Influence of Hydraulic Retention Time on Hydrogen Production by Treating Cheese Whey Wastewater in Anaerobic Fluidized Bed Bioreactor - An Approach for Developing Countries

Marques

Macêdo

Peiter

et al. 2019

Braz. J. Chem. Eng.

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This study assessed the effect of hydraulic retention time (HRT) on biohydrogen production by dark fermentation using an anaerobic fluidized bed reactor fed with cheese whey synthetic wastewater. The reactor of 1.2 L was operated with an approximate carbohydrate concentration of 2800 mg L -1 , and HRTs of 6, 4, 2, 1 and 0.5 h. Acetic and butyric acids were the main metabolites produced in the reactor. The hydrogen production increased from 0.039 to 1.43 L-H 2 h -1 L -1 -reactor as the HRT decreased from 6 to 0.5 h. The best hydrogen yield (HY) (2.73 mol-H 2 mol-carbohydrate -1 ) and carbohydrate consumption (81.02%) were achieved at a HRT of 6 h (12.34 kg-COD m -3 d -1 ) followed by the HY of 2.43 mol-H 2 mol-carbohydrate -1 at a HRT of 0.5h (163.02 kg-COD m -3 .d - 1 ). An increase in the influent pH in the operational phase 05 (HRT of 0.5 h) favored hydrogen production despite the reduced carbohydrate conversion compared to phase 01 (HRT of 6 h). In both conditions, the reactor presented the highest amount of acetic acid, indicating that the acetate route favored the hydrogen yield production. The HRT reduction led to an increase in microbial diversity, as evidenced by the Shannon-Wiener coefficient of 2.586, which corresponds to the operational phase with a HRT of 2 h.

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Section: Carbohydrate Conversion and Hydrogen Production Ratesupporting

confidence: 91%

Influence of Hydraulic Retention Time on Hydrogen Production by Treating Cheese Whey Wastewater in Anaerobic Fluidized Bed Bioreactor - An Approach for Developing Countries

Marques

Macêdo

Peiter

et al. 2019

Braz. J. Chem. Eng.

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“…The cultural results were confirmed by the HTS analysis that showed an increase in bacterial families belonging to Clostridiales order, such as Tissierellaceae and Clostridiaceae , which represented the most abundant bacterial taxa until the end of the incubation time. The selective pressure occurred in the ecosystem due to the presence of inoculum and the chemical–physical conditions of the anaerobic process selected these bacterial taxa, which are well-known to be involved in the H 2 production (Navarro-Díaz et al, 2016; Alexandropoulou et al, 2018). In particular, in this study, the most dominant OTUs of Clostridiaceae and Tissierellaceae were affiliated with Clostridium spp.…”

Section: Discussionmentioning

confidence: 99%

Anaerobic Process for Bioenergy Recovery From Dairy Waste: Meta-Analysis and Enumeration of Microbial Community Related to Intermediates Production

et al. 2019

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Dairy wastes are widely studied for the hydrogen and methane production, otherwise the changes in microbial communities related to intermediate valuable products was not deeply investigated. Culture independent techniques are useful tools for exploring microbial communities in engineered system having new insights into their structure and function as well as potential industrial application. The deep knowledge of the microbiota involved in the anaerobic process of specific waste and by-products represents an essential step to better understand the entire process and the relation of each microbial population with biochemical intermediates and final products. Therefore, this study investigated the microbial communities involved in the laboratory-scale anaerobic digestion of a mixture of mozzarella cheese whey and buttermilk amended with 5% w/v of industrial animal manure pellets. Culture-independent methods by employing high-throughput sequencing and microbial enumerations highlighted that lactic acid bacteria, such as Lactobacillaceae and Streptococcaceae dominated the beginning of the process until about day 14 when a relevant increase in hydrogen production (more than 10 ml H2 gVS-1 from days 13 to 14) was observed. Furthermore, during incubation a gradual decrease of lactic acid bacteria was detected with a simultaneous increase of Clostridia, such as Clostridiaceae and Tissierellaceae families. Moreover, archaeal populations in the biosystem were strongly related to inoculum since the non-inoculated samples of the dairy waste mixture had a relative abundance of archaea less than 0.1%; whereas, in the inoculated samples of the same mixture several archaeal genera were identified. Among methanogenic archaea, Methanoculleus was the dominant genus during all the process especially when the methane production occurred, and its relative abundance increased up to 99% at the end of the incubation time highlighting that methane was formed from dairy wastes primarily by the hydrogenotrophic pathway in the reactors.

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“…To summarize, the production of bio-H 2 by anaerobic fermentation in the dark has been studied in the majority of research concerning the production of bio-H 2 from food wastes [ 196 ]. The production of bio-H 2 requires the degradation of the carbohydrate fraction of the waste by initial enzymatic hydrolysis for the production of reducing sugar [ 197 ]. This step is followed by thermophilic heterotrophic fermentation of sugar to produce organic acid [ 198 ].…”

Section: Tpw Ppw and Bpw Valorisation Methodsmentioning

confidence: 99%

Tangerine, banana and pomegranate peels valorisation for sustainable environment: A review

Barnossi

Moussaid

Housseini

2021

Biotechnology Reports

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Continuous biohydrogen production from a food industry waste: Influence of operational parameters and microbial community analysis

Cited by 65 publications

References 37 publications

Influence of Hydraulic Retention Time on Hydrogen Production by Treating Cheese Whey Wastewater in Anaerobic Fluidized Bed Bioreactor - An Approach for Developing Countries

Influence of Hydraulic Retention Time on Hydrogen Production by Treating Cheese Whey Wastewater in Anaerobic Fluidized Bed Bioreactor - An Approach for Developing Countries

Anaerobic Process for Bioenergy Recovery From Dairy Waste: Meta-Analysis and Enumeration of Microbial Community Related to Intermediates Production

Tangerine, banana and pomegranate peels valorisation for sustainable environment: A review

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