ArticleFrontiers in microbiology2025
Microbial-driven valorization of tannery sludge for fatty acids production: unraveling microbiome activity and functional redundancy.
Article in Frontiers in microbiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The tannery sludge, with its high content of organic and inorganic compounds often hazardous to the environment, represents a major challenge in industrial waste management. Among the strategies to mitigate its impact, the biological production of fatty acids can be considered a cost-effective and sustainable solution. For the first time, this study investigated in depth the microbial community's composition and dynamics during anaerobic fermentation of tannery sludge to produce short-chain fatty acids (SCFAs). Systems with varying hydraulic retention times (HRT) and temperatures were explored, utilizing oxidative (Ox) and thermal (Th) pretreatments to enhance organic matter bioavailability. Mesophilic Ox reactors (Ox_4, Ox_8) achieved stable SCFAs production, primarily acetic acid. Ox_8, with longer HRT than Ox_4, showed higher organic matter conversion (0.32 ± 0.01 and 0.25 ± 0.01 g COD
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