Abstract:After experiment and research,it is found that modified PVDF membrane is applicable for emulsion oil wastewater and the rejection ratio could be up to over 95% at different concentrations.The permeation reaches the country water releasing standard under 365 mg/L of feed concentration.When the feed temperature is between 20~26 ℃,the module flux could be stabilized at 38.4 L/(m² · h) in the condition of a crossflow velocity at 2 m · s^-1 after running for 4 hours.