摘要
A fouling-resistant ceramic-supported polymer composite membrane was developed for removal of oil-in-water (O/W) microemulsions. The composite membrane was featured with an asymmetric three-layer structure,i.e. ,a porous ceramic membrane substrate,a polyethersulfone (PES) ultrafiltration sub-layer,and a polyamide/polyvinyl alcohol (PVA) composite thin top-layer.The PES polymer was cast onto the tubular porous ceramic membrane with the sol-gel method,and the polyamide/PVA composite thin top-layer was fabricated with the interfacial polymerization method. The prepared composite membrane showed good performance for treating the O/W microemulsions with a mean diameter of 2.4 μm. At the operating pressure of 0.4 MPa,the hydraulic permeability remained steady at about 280 L·m -2 ·h -1 after a period of operation,the oil concentration in the filtrate was always less than 1.15 mg·L -1 ,and the oil rejection coefficient was higher than 99.1% from the beginning of the operation.
A fouling-resistant ceramic-supported polymer composite membrane was developed for removal of oil-in-water (O/W) microemulsions. The composite membrane was featured with an asymmetric three-layer structure, i.e., a porous ceramic membrane substrate, a polyethersulfone (PES) ultrafiltration sublayer, and a polyamide/polyvinyl alcohol (PVA) composite thin top-layer. The PES polymer was cast onto the tubular porous ceramic membrane with the sol-gel method, and the polyamide/PVA composite thin top-layer was fabricated with the interfacial polymerization method. The prepared composite membrane showed good performance for treating the O/W microemulsions with a mean diameter of 2.4 /μm. At the operating pressure of 0.4 MPa, the hydraulic permeability remained steady at about 280 L·m-2·h-1 after a period of operation, the oil concentration in the filtrate was always less than 1.15 mg·L-1, and the oil rejection coefficient was higher than 99.1% from the beginning of the operation.
出处
《化工学报》
EI
CAS
CSCD
北大核心
2004年第4期664-667,共4页
CIESC Journal
基金
教育部跨世纪优秀人才基金
胜利石油管理局工程机械总厂资助项目~~
