Volatile fatty acids (VFA) from sewage sludge represent an excellent recovered resource from wastewater treatment. This study investigated four sludge pre-treatments (namely, potassium permanganate - KMnO4, initial pH = 10, initial pH = 2.5 and low-temperature thermal hydrolysis) by operating batch reactors under acidogenic fermentation conditions. Results revealed that 0.1 g KMnO4/g of total suspended solids represents the best pre-treatment obtaining up to 2713 mgCOD L-1 and 452 mgCOD/g of volatile suspended solids. These results also paralleled metataxonomic analysis highlighting changes in prokaryotic microbial structures of sewage sludge of the batch fermentations subjected to the different pre-treatments.

Mineo, A., Di Leto, Y., Cosenza, A., Capri, F.C., Gallo, G., Alduina, R., et al. (2024). Enhancing volatile fatty acid production from sewage sludge in batch fermentation tests. CHEMOSPHERE, 349 [10.1016/j.chemosphere.2023.140859].

Enhancing volatile fatty acid production from sewage sludge in batch fermentation tests

Mineo, Antonio
Primo
;
Di Leto, Ylenia;Cosenza, Alida;Capri, Fanny Claire;Gallo, Giuseppe;Alduina, Rosa;Mannina, Giorgio
Ultimo
2024-02-01

Abstract

Volatile fatty acids (VFA) from sewage sludge represent an excellent recovered resource from wastewater treatment. This study investigated four sludge pre-treatments (namely, potassium permanganate - KMnO4, initial pH = 10, initial pH = 2.5 and low-temperature thermal hydrolysis) by operating batch reactors under acidogenic fermentation conditions. Results revealed that 0.1 g KMnO4/g of total suspended solids represents the best pre-treatment obtaining up to 2713 mgCOD L-1 and 452 mgCOD/g of volatile suspended solids. These results also paralleled metataxonomic analysis highlighting changes in prokaryotic microbial structures of sewage sludge of the batch fermentations subjected to the different pre-treatments.
feb-2024
Settore ICAR/03 - Ingegneria Sanitaria-Ambientale
Settore BIO/19 - Microbiologia Generale
Mineo, A., Di Leto, Y., Cosenza, A., Capri, F.C., Gallo, G., Alduina, R., et al. (2024). Enhancing volatile fatty acid production from sewage sludge in batch fermentation tests. CHEMOSPHERE, 349 [10.1016/j.chemosphere.2023.140859].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/619379
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