两亲聚合物改性PVDF膜处理含油废水的研究  

Oily wastewater treatment using PVDF membrane modified with an amphiphilic polymer

作　　者：王明花[1] 王利[1] 方少明[1] 赵继红[1] 张宏忠[1] 

机构地区：[1]郑州轻工业学院材料与化学工程学院环境污染治理与生态修复河南省协同创新中心,郑州450001

出　　处：《膜科学与技术》2015年第3期76-80,125,共6页Membrane Science and Technology

基　　金：国家水体污染控制与治理科技重大专项(2012ZX07204-004);河南省高校科技创新人才支持计划项目(2013HASTIT031)

摘　　要：合成了一种两亲聚合物并共混到PVDF中，通过相转化法（L-S）制备改性PVDF平板膜，研究了改性膜在含油废水处理中的应用．通过对浓度为80-240mg／I。含油水的膜分离实验表明，改性膜比纯PVDF膜的截留率和水通量都有显著提高．纯PVDF膜除油率最高达89．1％，而改性膜除油率最高达97．0%．衰减趋稳后，纯PVDF膜水通量在20L／（m2·h）左右，而改性膜水通量稳定在50L／（m2·h）左右．An amphiphilic polymer was senthesized by a macro-monomer route, and blended with poly （vinylidene fluoride） （PVDF）. The modified PVDF flat membranes were prepared by Loeb-Souriraian （L -S） phase inversion method. Then application of the membrane in oily wastewater treatment was detected. The permeation properties measurement of the membrane for wastewater with the oil concentration 80- 240 mg/L indicated that the highest rejection rate of the modified membrane was up to 97. 0%, while the pure PVDF membrane was 89. 1%. When the attenuation was stable, the permeation flux of the modified and pure PVDF membrane were around 50 L/（m2·h） and 20 L/（m^2 ·h）, respectively.

关 键 词：聚偏氟乙烯 两亲聚合物 膜改性 含油废水 处理 

分 类 号：TQ028.8[化学工程]