6533b7d4fe1ef96bd12629a2
RESEARCH PRODUCT
Influence of volatile solids and pH for the production of volatile fatty acids: batch fermentation tests using sewage sludge
Fanny Claire CapriRosa AlduinaGiorgio ManninaAlida CosenzaGiuseppe GalloDario Prestisubject
Environmental EngineeringCircular economyBatch fermentation0207 environmental engineeringBioengineering02 engineering and technology010501 environmental sciences01 natural sciencesBioreactorsNutrientVolatile fatty acidsResource recovery from wastewater020701 environmental engineeringWaste Management and Disposal0105 earth and related environmental sciencesSuspended solidsSettore ICAR/03 - Ingegneria Sanitaria-AmbientaleBacteriaSewageRenewable Energy Sustainability and the EnvironmentChemistryGeneral MedicineHydrogen-Ion ConcentrationOther Quantitative Biology (q-bio.OT)Fatty Acids VolatilePulp and paper industry6. Clean waterQuantitative Biology - Other Quantitative BiologyActivated sludgeFOS: Biological sciencesFermentationFermentationBacterial communityRetention timeSludgedescription
The aim of this work was to study the effect of volatile suspended solid (VSS) and pH on volatile fatty acids (VFA) production from waste activated sludge (WAS) fermentation by means of batch tests. The final goal was to gain insights to enhance VFA stream quality, with the novelty of using WAS with high sludge retention time. Results revealed that the optimum conditions to maximize VFAs and minimize nutrients and non-VFA sCOD are a VSS concentration of 5.9 g/L and initial pH adjustment to pH 10. The WAS bacterial community structures were analysed according to Next Generation Sequencing (NGS) of 16S rDNA amplicons. The results revealed changes of bacterial phyla abundance in comparison with the batch test starting condition.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2021-12-01 |