Membrane filtration processes are increasingly popular for drinking water treatment that requires high qualityof water. But pre-treatment system (Coagulation/Flocculation/Sedimentation) requires increased footprint and installation cost.In addition, 5∼10% of the concentrate are formed. In this study, the pressurized PVDF membrane (ECONITY Co., Ltd.)system was tested with surface water (Han River, South Korea) without pre-treatment. As a result, permeate flux was operatedbetween 1 m/d and 2.4 m/d (at 25°C) without chemical cleaning for one year and membrane permeate turbidity wasmaintained stably under 0.05 NTU regardless of raw water turbidity. And we studied application of concetrate treatment ofpressurized PVDF membrane by submerged PE membrane (ECONITY Co., Ltd.). As a result, we increased recovery of totaltreatment process to 99.5%.