Study on short-chain fatty acids production from anaerobic fermentation of waste activated sludge pretreated by alkali-activated ammonium persulfate

Bioresource Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132461 - 132461

Published: March 1, 2025

Language: Английский

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Synergistic remediation of landfill-mined soil-like materials using advanced oxidation and stabilization: Performance and mechanistic insights

Process Safety and Environmental Protection, Journal Year: 2025, Volume and Issue: unknown, P. 107162 - 107162

Published: April 1, 2025

Language: Английский

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Promoting the production of targeted short-chain fatty acids during anaerobic fermentation of sewage sludge facilitated by thermal-alkali combined with peroxydisulfate (TAP) pretreatment

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 72, P. 107590 - 107590

Published: April 1, 2025

Language: Английский

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Mechanistic elucidation of ultraviolet light and peracetic acid coupling-driven enhancements in short-chain fatty acid production from sludge: Reactive species-induced organic solubilization and microbial function regulation

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 385, P. 125700 - 125700

Published: May 6, 2025

Language: Английский

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Effect of medium temperature-activated potassium persulfate pretreatment on Sludge Anaerobic Digestion Efficiency and Substance Transformation Processes

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: May 9, 2025

Slow hydrolysis is a major limiting factor in sludge anaerobic digestion. Thermally activated persulfate pretreatment has been used to promote the decomposition of sludge. However, optimal activation temperature for persulfate-enhanced digestion remains undetermined. This study investigated effects medium temperature-activated potassium (K₂S₂O₈) on waste (WAS) and performance methane production. Pretreatment was conducted at three temperatures 35°C, 55°C, 75°C, with K₂S₂O₈ dosage 0.43 g/g TSS 1.5 hours. Results demonstrated that significantly improved rates efficiencies WAS. The soluble organic matter (SCOD) concentrations WAS after were 1,371.52–2,198.02 mg/L, much higher than control(521.32mg/L), observed 75°C. production potential pretreated groups increased by 67.4%, 94.6%, 76.5% compared control, respectively, highest yield 55 ° C. K₂S₂O₈ pretreatment delayed methanogenesis initiation, as indicated Gompertz model fitting result (lag phase λ: 1.21–2.60 d treatment vs. <0.1 control). Although also enhanced release during stage, considerable portion dissolved organics remained unconverted methane. Therefore, impact mechanism K₂S₂O₈ needs further research. confirmed effective more conducive stability AD system.

Language: Английский

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Insights into multivalent metal removal-assistant anaerobic fermentation of waste activated sludge: Impact factor identification and mechanism clarification of metal removal

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 499, P. 155965 - 155965

Published: Sept. 19, 2024

Language: Английский

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Improved volatile fatty acid production in anaerobic digestion via simultaneous temperature regulation and persulfate activation by biochar: Chemical and biological response mechanisms

Environmental Research, Journal Year: 2024, Volume and Issue: 264, P. 120271 - 120271

Published: Nov. 5, 2024

Language: Английский

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Deep insights into the assembly mechanisms, co-occurrence patterns, and functional roles of microbial community in wastewater treatment plants

Environmental Research, Journal Year: 2024, Volume and Issue: 263, P. 120029 - 120029

Published: Sept. 18, 2024

Language: Английский

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