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

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160477 - 160477

Published: Feb. 1, 2025

Language: 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, Journal Year: 2025, Volume and Issue: unknown, P. 145383 - 145383

Published: March 1, 2025

Language: Английский

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

Waste Management, Journal Year: 2024, Volume and Issue: 184, P. 37 - 51

Published: May 24, 2024

Language: Английский

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

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 494, P. 153224 - 153224

Published: June 17, 2024

Language: 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, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 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.

Language: Английский

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

Biomass and Bioenergy, Journal Year: 2025, Volume and Issue: 197, P. 107769 - 107769

Published: March 14, 2025

Language: 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, Journal Year: 2025, Volume and Issue: 74, P. 107801 - 107801

Published: April 24, 2025

Language: 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, Journal Year: 2024, Volume and Issue: 356, P. 120632 - 120632

Published: March 26, 2024

Language: Английский

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

Microorganisms, Journal Year: 2024, Volume and Issue: 12(4), P. 680 - 680

Published: March 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

Language: 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, Journal Year: 2024, Volume and Issue: 52(4), P. 2193 - 2205

Published: April 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.

Language: Английский

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