Long-term anaerobic digestion of food waste at semi-pilot scale: Relationship between microbial community structure and process performances

Tonanzi, Barbara; Gallipoli, Agata; Gianico, Andrea; Montecchio, Daniele; Pagliaccia, Pamela; Carlo, Marco Di; Rossetti, Simona; Braguglia, Camilla Maria

doi:10.1016/j.biombioe.2018.08.001

Cited by 48 publications

(28 citation statements)

References 46 publications

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Section: Resultsmentioning

confidence: 91%

“…As reported in Figure 6, BSNP strongly increases during the first seven hours and then decreases even if such decrease is more important for the systems having a OFMSW/AZ-digestate weight ratio of 0.025 and 0.03. The obtained trend indicates that the system with a OFMSW/AZ-digestate weight ratio equals to 0.025 is the most performant system in terms of conversion of OFMSW to biogas since it exhibits a higher value of BSNP in the entire digestion period [41][42][43]. Obviously, not only chemical The obtained trend indicates that the system with a OFMSW/AZ-digestate weight ratio equals to 0.025 is the most performant system in terms of conversion of OFMSW to biogas since it exhibits a higher value of BSNP in the entire digestion period [41][42][43].…”

Section: Resultsmentioning

confidence: 96%

“…The obtained trend indicates that the system with a OFMSW/AZ-digestate weight ratio equals to 0.025 is the most performant system in terms of conversion of OFMSW to biogas since it exhibits a higher value of BSNP in the entire digestion period [41][42][43]. Obviously, not only chemical The obtained trend indicates that the system with a OFMSW/AZ-digestate weight ratio equals to 0.025 is the most performant system in terms of conversion of OFMSW to biogas since it exhibits a higher value of BSNP in the entire digestion period [41][42][43]. Obviously, not only chemical composition but even physical properties of the feed-such as viscosity, density, etc.-should be taken into account in order to better investigate the phenomena occurring during the process and better rationalize the obtained data.…”

Section: Resultsmentioning

confidence: 96%

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Pilot Plant Data Assessment in Anaerobic Digestion of Organic Fraction of Municipal Waste Solids

et al. 2019

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In this paper, a preliminary study of anaerobic digestion of organic fraction of municipal solid wastes (OFMSW) in presented with the aim to compare the performances of both wet- and dry-type reactors. The treatment of OFMSW via anaerobic digestion (AD) producing biogas is a process that is receiving a growing interest because two different needs can be coupled: the request of sustainable municipal waste treatments and increasing demand renewable energy. This paper aims to offer experimental results comparing batch test and continuous experimental reactors under different conditions of humidity and solid content. Results show that both the investigated configurations may be used for converting OFMSW into a high quality biogas and that the increase of dry matter in the continuous process still allows to achieve significant biogas production rates. A slight reduction of the methane content was observed (less than 5% relative) that can be also related to the change in the level of volatile fatty acids. These results are very promising in supporting the possibility of operating an industrial scale plant with a dry-process without affecting the system performance.

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Section: Resultsmentioning

confidence: 91%

Section: Resultsmentioning

confidence: 96%

Section: Resultsmentioning

confidence: 96%

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Pilot Plant Data Assessment in Anaerobic Digestion of Organic Fraction of Municipal Waste Solids

et al. 2019

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“…The inoculum used in bioelectrochemical experiments consisted of an anaerobic methanogenic sludge collected from a lab-scale mesophilic (37°C) digester fed with food wastes [40].…”

Section: Source Culturementioning

confidence: 99%

Conductive Magnetite Nanoparticles Enhance the Microbial Electrosynthesis of Acetate from CO₂ while Diverting Electrons away from Methanogenesis

et al. 2020

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Microbial electrosynthesis (MES) is an emerging technology which exploits microbial cells to convert CO2 into fuels, and value‐added chemicals using electrons supplied by a solid‐state cathode. Methane and acetic acid are typically the main CO2‐reduction products attained in microbial electrosynthesis studies, although the production of other more valuable products has also been reported. So far, however, practical strategies to manipulate and steer the distribution of CO2 reduction products during microbial electrosynthesis, particularly when mixed microbial cultures are employed as catalysts, are lacking. To specifically address this issue, here we investigated the influence of magnetite nanoparticles (NPs) supplementation (to a final concentration of 300 mg Fe L−1) on the microbial electrosynthesis process. Results demonstrated, that cells supplemented with magnetite NPs, exhibited a substantially higher yield of acetate production relative to unamended controls (up to 8.5 times higher, during the run with the cathode set at a potential of −700 mV vs. SHE, with a corresponding cathode capture efficiency of 17%) and, correspondingly, a lower yield of methane production (52% in the magnetite‐supplemented cell vs. 74% in the unamended control cell). Abiotic experiments indicated that the observed effects derived from magnetite catalyzing the biotic and abiotic hydrogen evolution reaction.

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“…The acidification bacteria then turn soluble organic material into organic acids, carbon dioxide and hydrogen during the acidification step. The organic acids are decomposed into acetic acid/esters, formic acid/esters which are transformed into methane by methanogenic microorganisms [11]. Moreover, the digestate, meaning the effluent coming out of the anaerobic process can be reused in agriculture as nutrient for plants because of its high N, P, K content together with humic substances [12].…”

mentioning

confidence: 99%

Small Scale Determinations for Biogas Production Using Anaerobic Fermentation - 2L Batch Scenarios

Dungan¹,

Cioablă²,

Pode³

2020

Rev. Chim.

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Nowadays demand for clean energy and new solutions for renewable energy carriers makes it a challenge to find new substrates that can be used for production of biofuels. In this context the present paper aims to present possible solutions of substrate mixtures using materials that exist in abundance at least in the western part of Romania. Conclusions will be traced relative to material potential at small scale in terms of producing biogas.

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Long-term anaerobic digestion of food waste at semi-pilot scale: Relationship between microbial community structure and process performances

Cited by 48 publications

References 46 publications

Pilot Plant Data Assessment in Anaerobic Digestion of Organic Fraction of Municipal Waste Solids

Pilot Plant Data Assessment in Anaerobic Digestion of Organic Fraction of Municipal Waste Solids

Conductive Magnetite Nanoparticles Enhance the Microbial Electrosynthesis of Acetate from CO₂ while Diverting Electrons away from Methanogenesis

Small Scale Determinations for Biogas Production Using Anaerobic Fermentation - 2L Batch Scenarios

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Long-term anaerobic digestion of food waste at semi-pilot scale: Relationship between microbial community structure and process performances

Cited by 48 publications

References 46 publications

Pilot Plant Data Assessment in Anaerobic Digestion of Organic Fraction of Municipal Waste Solids

Pilot Plant Data Assessment in Anaerobic Digestion of Organic Fraction of Municipal Waste Solids

Conductive Magnetite Nanoparticles Enhance the Microbial Electrosynthesis of Acetate from CO2 while Diverting Electrons away from Methanogenesis

Small Scale Determinations for Biogas Production Using Anaerobic Fermentation - 2L Batch Scenarios

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Product

Resources

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Conductive Magnetite Nanoparticles Enhance the Microbial Electrosynthesis of Acetate from CO₂ while Diverting Electrons away from Methanogenesis