Enhanced conversion of food waste into n-caproate by integrating long-term and short-term fermentation: Performance and mechanisms

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160477 - 160477

Опубликована: Фев. 1, 2025

Язык: Английский

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Boosting the biosynthesis of medium-chain fatty acids from waste activated sludge electro-fermentation: Roles of syngas and ethanol serving as co-electron donors

Journal of Cleaner Production, Год журнала: 2025, Номер unknown, С. 145383 - 145383

Опубликована: Март 1, 2025

Язык: Английский

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Effect of nanobubble water on medium chain carboxylic acids production in anaerobic digestion of cow manure

Waste Management, Год журнала: 2024, Номер 184, С. 37 - 51

Опубликована: Май 24, 2024

Язык: Английский

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Challenges and enhancement technologies of medium chain carboxylates production in open culture anaerobic fermentation

Chemical Engineering Journal, Год журнала: 2024, Номер 494, С. 153224 - 153224

Опубликована: Июнь 17, 2024

Язык: Английский

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Chemical–Biological Process Based on H₂O₂/O₃ Lysis and Cryptic Growth for the In Situ Reduction of Waste Activated Sludge

ACS ES&T Engineering, Год журнала: 2025, Номер unknown

Опубликована: Фев. 25, 2025

In addressing the expensive transportation and disposal cost of waste activated sludge (WAS), an in situ reduction strategy was developed this study based on H2O2/O3 lysis a cryptic growth process. The critical roles solubilization biodegradability lysate were analyzed comprehensively. Under dosage 0.36 g O3/g mixed liquor volatile suspended solids (MLVSS), H2O2 addition (H2O2/O3 molar ratio 0.25) led to significant improvement cell performance terms MLVSS (35.2% vs 26.3%). Compared with O3 alone, treated exhibited higher biodegradability, as value BOD5/COD increased from 0.72 0.79, accompanied by mean specific rates 6.71 7.42 h–1, respectively. Reintroduction H2O2/O3-treated into mainstream biological process facilitated further hydrolysis oxidized fragments, achieving overall 29.1% without adversely affecting effluent quality adversely. A pilot-scale experiment at 2.4 m3/d treatment capacity also demonstrated similar 28.1% term MLVSS. Economic analysis revealed that net benefit reached 132/t dry (DS), highlighting potential combined method for effective reduction.

Язык: Английский

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Waste-to-resource caproic acid production by anaerobic mixed microbial cultures: A review of recent developments

Biomass and Bioenergy, Год журнала: 2025, Номер 197, С. 107769 - 107769

Опубликована: Март 14, 2025

Язык: Английский

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Effects of lactate concentration and addition method on the production of caproate in mixed-culture anaerobic fermentation: Focus on products and microbial communities

Journal of Water Process Engineering, Год журнала: 2025, Номер 74, С. 107801 - 107801

Опубликована: Апрель 24, 2025

Язык: Английский

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Effects of yeast inoculation methods on caproic acid production and microbial community during anaerobic fermentation of Chinese cabbage waste

Journal of Environmental Management, Год журнала: 2024, Номер 356, С. 120632 - 120632

Опубликована: Март 26, 2024

Язык: Английский

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Research on the Resource Recovery of Medium-Chain Fatty Acids from Municipal Sludge: Current State and Future Prospects

Microorganisms, Год журнала: 2024, Номер 12(4), С. 680 - 680

Опубликована: Март 28, 2024

The production of municipal sludge is steadily increasing in line with the sewage. A wealth organic contaminants, including nutrients and energy, are present sludge. Anaerobic fermentation can be used to extract useful resources from sludge, producing hydrogen, methane, short-chain fatty acids, and, via further chain elongation, medium-chain acids. By comparing economic use values these retrieved resources, it concluded that a high-value resource transformation achieved acids using anaerobic fermentation, which hotspot for future research. In this study, selection pretreatment method, method influence electron donor, technique enhance product synthesis process introduced detail. study outlines potential research directions acid These could serve as starting point investigating other uses

Язык: Английский

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Mechanical and Microstructural Analysis of Lightweight Subgrade Bricks Synthesized from Mixtures of Coal Fly Ash and Sewage Sludge

Journal of Testing and Evaluation, Год журнала: 2024, Номер 52(4), С. 2193 - 2205

Опубликована: Апрель 2, 2024

ABSTRACT The massive discharge of coal fly ash and sewage sludge has placed great pressure on the environment society. This study proposes a feasible method for producing lightweight subgrade bricks from sludge. results show that mainly consist mullite (3Al2O3·2SiO2), hematite (Fe2O3), sillimanite (Al2SiO5), aluminum phosphate (AlPO4), small amount cristobalite (SiO2). formation AlPO4 improved sintering mechanical properties sintered samples. voids cracks in samples was primarily attributable to combustion shrinkage organic matter mixture. maximum compressive flexural strengths were observed when content 40 wt. %, corresponding strength 19.86 8.57 MPa, respectively. An appropriate improves connections between particles promotes densification bricks. These provide direction development applications field building materials.

Язык: Английский

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