Optimal conditions for biological hydrogen production from food waste

Wongthanate, Jaruwan; Chinnacotpong, Kittibodee

doi:10.4491/eer.2013.104

Cited by 14 publications

(2 citation statements)

References 17 publications

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“…As depicted in Fig. 6 a, the pH value recorded at the beginning of the H 2 production phase under optimal conditions was 8.0, which was consistent with previous studies [ 39 , 40 ] in which the same initial pH maximized H 2 production from the fermentation process of similar substrates. Furthermore, a relatively high final pH of 6.6 for this experiment indicated that the pH drop was very small, which further implies that the buffering capacity provided by fly ash most probably prevented a large decline in pH, despite the fact that the fermentation process took place under dry conditions with a high risk of excessive acidification.…”

Section: Resultssupporting

confidence: 90%

Application of Doehlert design in optimizing the solid-state hydrogenogenic stage augmented with biomass fly ash in a two-stage biohythane production process

Alavi-Borazjani

Gomes

Tarelho

et al. 2023

Bioprocess Biosyst Eng

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This study aimed to optimize the solid-state hydrogenogenic stage supplemented with biomass fly ash in a two-stage anaerobic digestion (AD) process for biohythane production from the organic fraction of municipal solid waste (OFMSW). Doehlert’s experimental design was used to obtain the optimal set of two investigated variables, namely total solids (TS) content and biomass fly ash dosage in the defined ranges of 0–20 g/L and 20–40%, respectively. Applying the optimal conditions of TS content (29.1%) and fly ash dosage (19.2 g/L) in the first stage led not only to a total H2 yield of 95 mL/gVSadded, which was very close to the maximum H2 yield predicted by the developed model (97 mL/gVSadded), but also to a high CH4 yield of 400 mL/gVSadded (76% of the theoretical CH4 yield). Moreover, the biohythane obtained from the optimized two-stage process met the standards of a biohythane fuel with an H2 content of 19% v/v.

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Section: Resultssupporting

confidence: 90%

Application of Doehlert design in optimizing the solid-state hydrogenogenic stage augmented with biomass fly ash in a two-stage biohythane production process

Alavi-Borazjani

Gomes

Tarelho

et al. 2023

Bioprocess Biosyst Eng

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show abstract

“…The biohydrogen yields of all tested wastes in the present study are listed in Table 2 , which are in agreement with the previous studies, although the pH management method used was different [ 25 , 46 ]. On the other end, Wongthanate and Chinnacotpong [ 47 ] obtained biohydrogen yield of 44.83 mL/g COD under no pH control conditions which was 89.67 mL/g COD obtained in the present study from FW under PM12, indicating the positive impact of pH management.…”

Section: Resultssupporting

confidence: 47%

Impact of pH Management Interval on Biohydrogen Production from Organic Fraction of Municipal Solid Wastes by Mesophilic Thermophilic Anaerobic Codigestion

Arslan

Sattar

Changying

et al. 2015

BioMed Research International

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The biohydrogen productions from the organic fraction of municipal solid wastes (OFMSW) were studied under pH management intervals of 12 h (PM12) and 24 h (PM24) for temperature of 37 ± 0.1°C and 55 ± 0.1°C. The OFMSW or food waste (FW) along with its two components, noodle waste (NW) and rice waste (RW), was codigested with sludge to estimate the potential of biohydrogen production. The biohydrogen production was higher in all reactors under PM12 as compared to PM24. The drop in pH from 7 to 5.3 was observed to be appropriate for biohydrogen production via mesophilic codigestion of noodle waste with the highest biohydrogen yield of 145.93 mL/g CODremoved under PM12. When the temperature was increased from 37°C to 55°C and pH management interval was reduced from 24 h to 12 h, the biohydrogen yields were also changed from 39.21 mL/g CODremoved to 89.67 mL/g CODremoved, 91.77 mL/g CODremoved to 145.93 mL/g CODremoved, and 15.36 mL/g CODremoved to 117.62 mL/g CODremoved for FW, NW, and RW, respectively. The drop in pH and VFA production was better controlled under PM12 as compared to PM24. Overall, PM12 was found to be an effective mean for biohydrogen production through anaerobic digestion of food waste.

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Biohydrogen Production Through Mixed Culture Dark Anaerobic Fermentation of Industrial Waste

Hajizadeh¹,

Saady²,

Zendehboudi³

et al. 2021

Handbook of Environmental Engineering

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Optimal conditions for biological hydrogen production from food waste

Cited by 14 publications

References 17 publications

Application of Doehlert design in optimizing the solid-state hydrogenogenic stage augmented with biomass fly ash in a two-stage biohythane production process

Application of Doehlert design in optimizing the solid-state hydrogenogenic stage augmented with biomass fly ash in a two-stage biohythane production process

Impact of pH Management Interval on Biohydrogen Production from Organic Fraction of Municipal Solid Wastes by Mesophilic Thermophilic Anaerobic Codigestion

Biohydrogen Production Through Mixed Culture Dark Anaerobic Fermentation of Industrial Waste

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