Hydrodynamic cavitation pretreatment of waste activated sludge using an optimized pinned-disc rotary generator: Cavitation-collapse pressure pulses, sludge disruption and energetic limits
Hydrodynamic cavitation (HC) is increasingly considered as a mechanical pretreatment to enhance anaerobic digestion (AD) of waste activated sludge (WAS), but the relationship between cavitation, sludge transformation and energetic benefit remains unclear. In this study, WAS from a municipal wastewater treatment plant w...