Published: Jan. 1, 2024
Language: Английский
Fermentation, Journal Year: 2025, Volume and Issue: 11(1), P. 19 - 19
Published: Jan. 3, 2025
The aim of this review is to provide a comprehensive analysis the membrane-assisted dark fermentation process for bioH2 production and purification. This initially analyses need current state art in H2 through fermentation, evaluating research landscape maturity level technology. Key factors influencing are then examined, along with emerging trends fermentative systems. subsequently addresses challenges inherent explores potential opportunities enhance efficiency. Special attention given membrane technology as promising strategy intensification recovery. Finally, provides an in-depth discussion inorganic membranes, mixed matrix membranes (MMMs), thin ultrathin each type terms its advantages, limitations, purification performance. offers valuable insights into intensifying by leveraging
Language: Английский
Citations
2
Recycling, Journal Year: 2025, Volume and Issue: 10(1), P. 11 - 11
Published: Jan. 15, 2025
Lactic acid fermentation has recently been shown to be a robust storage strategy for food waste prior conversion biohydrogen through dark fermentation. However, the importance of initial microbial communities and, more particularly, exogenous microorganisms on lactic acid-rich stored substrate is not yet fully elucidated. This study investigates impact introducing inoculum production in Results showed inoculation produced statistically significant increase rate (Rm) by 199%, 250%, 137%, 130%, 19%, and 10% compared non-inoculated after at 4 °C, 10 23 35 45 55 respectively. Interestingly, no maximum yield (Pm) was observed, but increased accumulation acetate, up 160% endogenous inoculum. The main hydrogen-producing bacteria (HPB) were affiliated with Clostridium sp., while Prevotella_9 another known HPB, found °C. In this study, interest convert demonstrated an along higher co-products, e.g., acetate. Such findings are promising further development process coupling, combining complex waste.
Language: Английский
Citations
1
Bioresource Technology, Journal Year: 2024, Volume and Issue: 408, P. 131224 - 131224
Published: Aug. 6, 2024
Lactic acid has been applied as a precursor for hydrogen (H
Language: Английский
Citations
8
Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: 191, P. 206 - 217
Published: Aug. 30, 2024
This study investigated three different fermentation approaches to explore the potential for producing biohydrogen, carboxylic acids, and methane from hydrolysates of thermally dilute acid pretreated brewer's spent grains (BSG). Initially, research focused on maximizing volumetric hydrogen production rate (HPR) in continuous dark (DF) BSG by varying hydraulic retention time (HRT). The highest HPR reported date 5.9 NL/L-d was achieved at 6 h HRT, with a Clostridium-dominated microbial community. effect operational pH (4, 5, 6, 7) acidogenic then investigated. A peak concentration 17.3 g CODequiv./L recorded an associated productivity 900.5 ± 13.1 mg CODequiv./L-h degree acidification 68.3 %. Lactic bacteria such as Limosilactobacillus Lactobacillus were dominant 4–5, while Weissella, Enterococcus, Lachnoclostridium appeared 7. Finally, this evaluated biochemical DF broth unfermented found high yields 659 517 NmL CH4/g-VSadded, respectively, both within one week. Overall, results showed that can be low-cost feedstock bioenergy valuable bio-based chemicals circular economy.
Language: Английский
Citations
6
Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 67, P. 106116 - 106116
Published: Sept. 6, 2024
Language: Английский
Citations
4
Bioresource Technology, Journal Year: 2024, Volume and Issue: 416, P. 131748 - 131748
Published: Nov. 5, 2024
Language: Английский
Citations
4
Fermentation, Journal Year: 2023, Volume and Issue: 9(9), P. 787 - 787
Published: Aug. 25, 2023
This study aimed at investigating the feasibility of using a highly specialized bacterial inoculum harboring lactic acid bacteria (LAB) and lactate-oxidizing, hydrogen-producing (LO-HPB) to produce either lactate or biohydrogen butyrate from several agro-industrial resources via dual-phase dark fermentation. The feedstocks were fruit–vegetable waste, cheese whey, coffee wastewater, tequila vinasse, maize processing tested in both mono- co-fermentation. results obtained indicated that biocatalyst used was able perform fermentation, producing high (13.1–36.4 g/L), (0.2–7.5 NL H2/Lfeedstock, equivalent 0.3–1.7 mol H2/mol hexose), (3.3–13.9 g/L) with all feedstocks. A series self-fermentation tests also performed crude whey waste for comparison purposes. Compared inoculum-aided fermentations, exhibited reduced bioconversion efficiency. Short-length 16S rRNA gene sequencing analysis showed LO-HPB dominant microbial group (86.0%) biocatalyst, followed by acetic (5.8%) LAB (5.7%). As expected, molecular significant differences community structure those evolved self-fermentation. Besides fermentation oxidation, assisted bi-phasic oxygen consumption, apparently, substrate hydrolysis. Overall, this can lay foundation robust development, which is special significance field proposes an innovative bioprocess valorization through trade-off approach, tailoring metabolic pathway target product(s).
Language: Английский
Citations
10
Water Science & Technology, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 21, 2025
ABSTRACT Dark fermentation has the potential to produce biohydrogen using raw material waste, such as wastewater from corn industry (cornWW), which is characteristically alkaline and improperly discharged. This study aimed assess impact of different hydraulic retention times (HRT) on hydrogen production in a sequencing batch reactor system cornWW feedstock. Different HRTs were evaluated (4, 2, 1 day(s)). Higher productivity was observed HRT value day (893.6 ± 10.1 NmL H2/Lreactor/day), indicating its favorable metabolic pathways leading generation hydrogen, carbon dioxide, acetate, butyrate, caproate. Microbial analysis revealed that Atopobium Clostridium (genera) played key roles organic acid production. Additionally, during cornWW, lactic feedstock facilitated caproic propionic acids, further enriching range valuable byproducts obtained through this process.
Language: Английский
Citations
0
International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: unknown
Published: April 1, 2025
Language: Английский
Citations
0
Published: Jan. 1, 2024
This study explores three valorization strategies for brewer's spent grain (BSG) to harness its potential within a circular economy framework. It examines the fermentative hydrogen production and acidogenic fermentation from thermal diluted-acid BSG hydrolysates, as well biogas non-fermented hydrolysates collected post-dark (DF). Continuous DF was evaluated at different hydraulic retention times (HRTs). The highest rate of 5.9 NL/L-d so far reported achieved 6-h HRT, while yield 32.8 NL H2/kg dry attained 12-h HRT. acidogenesis performed operational pHs 4–7. Organic acids (mainly lactate acetate) concentration peaked 17.3 g-CODequiv./L pH 6. Finally, unfermented fermented showed high methane yields 517 659 NmL CH4/g-VSadded, respectively. highlights brewing industry's biofuel organic acid BSG.
Language: Английский
Citations
0