Assessment of aerobic-anoxic biotrickling filtration for the desulfurization of high-strength H2S streams from sugarcane vinasse fermentation

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 489, P. 137696 - 137696

Published: Feb. 20, 2025

Language: Английский

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Treating nitrobenzene (NB) wastewater via an enhanced iron‒manganese oxides electron transfer strategy: Methods and mechanisms

Water Research, Journal Year: 2025, Volume and Issue: unknown, P. 123407 - 123407

Published: Feb. 1, 2025

Language: Английский

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Enhancing caproate production in lactate-containing effluents by Megasphaera hexanoica through acetate modulation

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 383, P. 125327 - 125327

Published: April 21, 2025

The anaerobic bacterium Megasphaera hexanoica has great potential for caproate production through reverse β-oxidation using lactate, acetate, and butyrate as substrates. This study assessed the effect of acetate concentrations (10-50 mM) on biosynthesis, lactate oxidation, cell synthesis in M. hexanoica. At 30 mM reached 42.83 mM, with an electron efficiency 67.03 % a specific productivity 4.47 gCA·h-1·gDCW-1. Subsequent fed-batch experiments maintained continuous production, achieving 65.21 mM. Bioreactor assays further validated strategy, yielding 65.25 over 180 h. Mechanistic analysis demonstrated that optimized acetyl-CoA flux enhanced caproyl-CoA transferase activity (3.5 U‧mg-1), supporting synthesis. Kinetic modeling Logistic model fit consumption (R2 = 0.991), while Fitzhugh captured 0.991, NRMSE 1.137). findings offer practical insights industrial-scale production.

Language: Английский

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Performance of a CTBB bioreactor for the treatment of waste gas: A case study from a sulfur mine in Poland

Desalination and Water Treatment, Journal Year: 2025, Volume and Issue: unknown, P. 101176 - 101176

Published: April 1, 2025

Language: Английский

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