Use of organic waste for biohydrogen production and volatile fatty acids via dark fermentation and further processing to methane

Weide, Tobias; Brügging, Elmar; Wetter, Christof; Ierardi, Antonio; Wichern, Marc

doi:10.1016/j.ijhydene.2019.07.140

Cited by 35 publications

(13 citation statements)

References 103 publications

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“…Detailed analyses of the substrate are provided in . No trace elements, nitrogen (N) or phosphorus (P) were added as the concentrations of these in the substrate met required standards for anaerobic processes , . Before feeding, the manure was pretreated thermally at 80 °C for 2 h to reduce the HCB.…”

Section: Methodsmentioning

confidence: 99%

“…The gas quantity and quality was analyzed daily. Analytical methods for gas analysis, COD, and pH were as stated in previous studies [11,12]. Considering H 2 concentrations, a maximum of 34 vol % (mean) was reached and thus were comparatively low.…”

Section: Experimental Setup and Proceduresmentioning

confidence: 99%

“…Since the process is highy similar to anaerobic digestion, organic waste and wastewater are also suitable for DF , . However, substrates must be rich in carbohydrates, which significantly limit the feedstock choices .…”

Section: Introductionmentioning

confidence: 99%

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Biohydrogen Production via Dark Fermentation with Pig Manure and Glucose Using pH‐Dependent Feeding

et al. 2020

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Process controls for mesophilic dark fermentation using a pH-dependent feeding strategy without NaOH addition were examined. One reactor utilizing microorganism holdback and two continuously stirred-tank reactors (CSTRs) with the same volume were employed. These were fed with pig manure and glucose as cosubstrates. Different hydraulic retention times were applied. The target pH was 5.5 within a limited range and controlled by varying organic loading rate. When the pH target interval was exceeded, the hydrogen production rate (HPR) decreased, and CH 4 was produced. A pH below the target interval had positive effects on the HPR.

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Section: Methodsmentioning

confidence: 99%

Section: Experimental Setup and Proceduresmentioning

confidence: 99%

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Biohydrogen Production via Dark Fermentation with Pig Manure and Glucose Using pH‐Dependent Feeding

et al. 2020

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“…It is worth highlighting why waste diapers (WD) are attractive for biohydrogen production. Among the merits and benefits of this use of WD we can cite the following: (i) the WD have a high content of cellulose (40% db); earlier research has demonstrated that substrates and wastes rich in cellulose and hemicellulose or carbohydrates can produce an attractive amount of biological hydrogen (Rodríguez-Valderrama et al, 2020;Alvarez et al, 2020;Sarangi and Nanda, 2020;Solowski et al, 2020;Weide et al, 2019;Catalán and Sánchez, 2019;Yeshanew et al, 2018;Roy 2017;Robledo-Narváez et al, 2013). Thus, in principle, the potential of biohydrogen production of WD, could be very high.…”

Section: Introductionmentioning

confidence: 99%

“…If successful, DF of the OFWD would hold promise for integration to biorefineries from wastes that could co-ferment this waste with a variety of agricultural and agroindustrial wastes of similar characteristics (cellulosic and lignocellulosic wastes, i.e., food and textile wastes) (Rodríguez-Valderrama et al, 2020;Sarangi and Nanda, 2020;Solowski et al, 2020;Weide et al, 2019;Catalán and Sánchez, 2019;Yeshanew et al, 2018;Roy 2017;Robledo-Narváez et al, 2013). As it was hinted above, biological hydrogen production can be easily incorporated to several biorefinery platforms as a first stage of biofuel generation, followed by a network of processes devoted to obtaining value-added products and possibly more energy (Poggi-Varaldo et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Hydrogen from Dark Fermentation of the Organic Fraction of Waste Diapers: Optimization Based on Response Surface Experiments

Sotelo-Navarro

Poggi‐Varaldo

2021

Front. Energy Res.

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Waste diapers (WD) handling and disposal in Mexico are typically based on their burial in dumping sites and landfills. Practically reclaiming and recycling of WD are non-existent. The clean diapers are composed of cellulose fibres (37–43% db), hemicellulose (5–9%), lignin (4–7%), protein (<1), plastics (polypropylene and polyethylene) (12–16%), absorbent sodium polyacrylate (14–18%), and elastic and adhesives tapes (9–12%). The latter can be valuable resources. WD composition is similar to clean diaper, although humidity is very high, and the ranges of faeces and urine are 1.5–2.5 and 6–9% dry weight, respectively. International literature searches indicate that there is some research on composting, fungal biodegradation, and methanogenic co-digestion of waste activated sludge with the organic fraction of waste diapers (OFWD.) However, research on dark fermentation of OFWD is limited. In this work, the generation of biohydrogen from dark fermentation of OFWD was optimised. We used the response surface methodology (RSM). Independent variables were the temperature of operation (37–55°C), ratio C/N of the feed (30, 40 gC/gN), and initial total solids of the feed (TSi) (15, 25%). The dependent (response) variables examined were Y’H2 (H2 produced per initial g of dry matter), contents of low molecular weight organic solvents and acids, lactic acid, the ratio A/B (acetic-to-butyric acid), and the quotient organic acids C2 to C4-to-solvents. The predicted maximum Y’H2 occurred at the combination of factors of 43 gC/gN, 12% and 31°C; its value was 2.79 mmolH2/gTS; its experimental validation gave 2.48 mmolH2/gTS, which shows a good agreement between values (11% lower than the predicted value). The maximum of Y’H2 with OFWD compared very favourably with bioH2 values obtained from a wide variety of wastes (organic municipal residues, agricultural wastes, etc.) using the same batch type fermentation with intermittent venting. Interestingly, the predicted temperature optimum fell in the lower side of the mesophilic range. Process heating savings would be in the order of 60.0 and 27.2% for thermophilic and mesophilic operation, respectively. In this way, it would be a contribution to the sustainability of the dark fermentation of OFWD. This result was somewhat counterintuitive and strongly indicates the usefulness of the response surface methodolog for analyzing the experimental results and uncovering favourable, although unexpected conditions.

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Utilization of Food Waste for Bioenergy Production

Rout,

Gupta,

Karunanithi

et al. 2024

Applied Biotechnology and Bioinformatics

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Use of organic waste for biohydrogen production and volatile fatty acids via dark fermentation and further processing to methane

Cited by 35 publications

References 103 publications

Biohydrogen Production via Dark Fermentation with Pig Manure and Glucose Using pH‐Dependent Feeding

Biohydrogen Production via Dark Fermentation with Pig Manure and Glucose Using pH‐Dependent Feeding

Hydrogen from Dark Fermentation of the Organic Fraction of Waste Diapers: Optimization Based on Response Surface Experiments

Utilization of Food Waste for Bioenergy Production

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