Central treatment of different emulsion wastewaters by an integrated process of physicochemically enhanced ultrafiltration and anaerobic-aerobic biofilm reactor

- A novel integrated process for waste emulsions from different sources was developed.
- Combined chemical emulsion breaking and VSEP can efficiently improve membrane flux.
- Chemical demulsification pretreatment can improve oil removal efficiency by UF.
- UF permeate exhibited good biodegradability.
- More than 90% of COD in UF effluent was mineralized by A/O biofilm system.