Reverse osmosis(RO)and ultrafiltration (UF) have been widely used in water and wastewater treatment. RO is usually applied in water treatment and UF in wastewater treatment.

• 反渗透与超滤是水处理中广泛应用的膜分离技术，给水处理中反渗透应用较多，废水处理中超滤应用较广泛。