Search results for "thermophilic fermentation"

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Improvement of the thermophilic anaerobic digestion and hygienisation of waste activated sludge by synergistic pretreatment

2019

Hybrid disintegration of waste activated sludge (WAS) before the thermophilic anaerobic stabilization of WAS contributes to the intensification of organic compounds decomposition and increases the effectiveness of the anaerobic stabilization process compared to the fermentation of raw WAS. This article investigates the influence of a chemical-thermal pretreatment procedure with the use of NaOH and freezing by the dry ice on WAS. We found that the hybrid pretreatment of WAS causes higher concentration of released organics in the liquid phase (represented here as a change in soluble chemical oxygen demand - SCOD value) in comparison to these disintegration techniques used separately. The use …

Hot TemperatureEnvironmental Engineering020209 energy02 engineering and technology010501 environmental scienceshygienisationWaste Disposal Fluid01 natural sciencesmethane productionSalmonellaEscherichia coli0202 electrical engineering electronic engineering information engineeringAnaerobiosisMethane productionthermophilic fermentation0105 earth and related environmental sciencesBiological Oxygen Demand AnalysisSewageWaste activated sludge (WAS)ChemistryThermophilehybrid disintegrationGeneral MedicinePulp and paper industryDecompositionAnaerobic digestionActivated sludgeBiofuelsFermentationMethaneAnaerobic exerciseJournal of Environmental Science and Health. Part A, Toxic/Hazardous Substances & Environmental Engineering
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