Tandem Acidic CO₂ Electrolysis Coupled with Syngas Fermentation: A Two-Stage Process for Producing Medium-Chain Fatty Acids

Environmental Science & Technology, Год журнала: 2024, Номер 58(17), С. 7445 - 7456

Опубликована: Апрель 15, 2024

The tandem application of CO2 electrolysis with syngas fermentation holds promise for achieving heightened production rates and improved product quality. However, the significant impact composition on mixed culture-based microbial chain elongation remains unclear. Additionally, effective methods generating an adjustable from acidic are currently lacking. This study successfully demonstrated medium-chain fatty acids through fermentation. CO could serve as sole energy source or electron donor (when cofed acetate) caproate generation. Furthermore, results gas diffusion electrode structure engineering highlighted that use carbon black, either alone in combination graphite, enabled consistent generation (pH 1). black layer significantly selectivity, increasing 0% to 43.5% (0.05 M K+) further 92.4% (0.5 K+). enhancement performance was attributed promotion K+ accumulation, stabilizing catalytically active sites, rather than creating a localized alkaline environment CO2-to-CO conversion. research contributes advancement hybrid technology sustainable reduction chemical production.

Язык: Английский

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Temperature-driven carboxylic acid production from waste activated sludge and food waste: Co-fermentation performance and microbial dynamics

Waste Management, Год журнала: 2024, Номер 178, С. 176 - 185

Опубликована: Фев. 24, 2024

This work aims to improve the continuous co-fermentation of waste activated sludge (WAS) and food (FW) by investigating long-term impact temperature on fermentation performance underpinning microbial community. Acidogenic WAS FW (70:30 % VS-basis) produce volatile fatty acids (VFA) was studied in fermenters at different temperatures (25, 35, 45, 55 °C) an organic loading rate 11 gVS/(L·d) a hydraulic retention time 3.5 days. Two batches (A B) were collected from same wastewater treatment plant periods understand microbioota fermenters' communities. Solubilisation yield higher 45 °C (575 ± 68 mgCOD/gVS) followed (508 mgCOD/gVS). Fermentation (425 28 35 (327 17 Temperature also had noticeable VFA profile. At °C, acetic (40 %) butyric acid dominated, while (37 %), (31 propionic (17 dominated °C. accumulation caproic detected which did not occur other temperatures. Each distinct community, where microbiota played important role. The biomass mass-balance showed highest growth microorganisms (51 WAS_B, consumption observed. Therefore, there is risk probably due proliferation methanogens imported WAS.

Язык: Английский

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Effect of high corn straw loads on short-chain fatty acid production in semi-continuous rumen reactor

Bioresource Technology, Год журнала: 2024, Номер 395, С. 130396 - 130396

Опубликована: Фев. 1, 2024

Язык: Английский

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Reducing transmission of high-risk antibiotic resistance genes in whole-crop corn silage through lactic acid bacteria inoculation and increasing ensiling temperature

The Science of The Total Environment, Год журнала: 2024, Номер 926, С. 172114 - 172114

Опубликована: Март 30, 2024

Язык: Английский

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Advancements in medium chain fatty acids production through chain elongation: Key mechanisms and innovative solutions for overcoming rate-limiting steps

Bioresource Technology, Год журнала: 2024, Номер 408, С. 131133 - 131133

Опубликована: Июль 20, 2024

Язык: Английский

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Simultaneous biogas upgrading and medium-chain fatty acids production using a dual membrane biofilm reactor

Water Research, Год журнала: 2023, Номер 249, С. 120915 - 120915

Опубликована: Ноя. 23, 2023

Язык: Английский

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Production of caproate from lactate by chain elongation under electro-fermentation: Dual role of exogenous ethanol electron donor

Bioresource Technology, Год журнала: 2025, Номер 424, С. 132272 - 132272

Опубликована: Фев. 20, 2025

Язык: Английский

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Promoting Multi-Carbon Fatty Acids Production from Microbial Chain Elongation of CO₂/H₂ with Carbonaceous Materials

ACS Sustainable Chemistry & Engineering, Год журнала: 2025, Номер unknown

Опубликована: Апрель 29, 2025

Язык: Английский

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Elucidating applied voltage on the fate of antibiotic resistance genes in microbial electrolysis cell: Focusing on its transmission between anolyte and biofilm microbes

The Science of The Total Environment, Год журнала: 2023, Номер 904, С. 166901 - 166901

Опубликована: Сен. 6, 2023

Язык: Английский

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Explainable machine learning-driven predictive performance and process parameter optimization for caproic acid production

Bioresource Technology, Год журнала: 2024, Номер 410, С. 131311 - 131311

Опубликована: Авг. 19, 2024

Язык: Английский

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