基于膜法含钴废水处理工艺中均相离子交换膜改性研究  

Modification of homogeneous ion exchange membrane based on cobalt wastewater treatment in membrane

作　　者：南君 马腾 王三反[1,2] 黄全江[1,2] NAN Jun;MA Teng;WANG Sanfan;HUANG Quanjiang(School of Environmental and Municipal Engineering,Lanzhou Jiaotong University,Lanzhou Gansu 730070;Engineering Research Center for Cold and Arid Regions Water Resource Comprehensive Ulilization,Ministry of Education,Lanzhou Gansu 730070)

机构地区：[1]兰州交通大学环境与市政工程学院,甘肃兰州730070 [2]寒旱地区水资源综合利用教育部工程中心,甘肃兰州730070

出　　处：《环境污染与防治》2018年第11期1252-1255,1261,共5页Environmental Pollution & Control

基　　金：国家科技支撑计划项目(No.2015BAE04B01);国家自然科学基金资助项目(No.21466019);兰州交通大学优秀平台支持项目(No.201606)

摘　　要：基于等离子体照射技术,在磺化聚偏氟乙烯接枝苯乙烯均相阳离子交换膜(PVDF-g-PSSA膜)上接枝两性离子聚合物,改性使其具有高选择透过性及优异的抗污染能力。实验通过对改性膜离子迁移数、接触角及面电阻的测定来表征膜的改性效果,并通过应用实验来表征膜优异的实用性能。结果表明,改性膜的阳离子迁移数达到98.2%,较PVDF-g-PSSA膜提升了9.4%,亲水角下降了31°,面电阻下降了5.2Ω·cm^2。On the basis of the advanced plasma irradiation techniques,zwitterionic polymers was grafted on PVDF-g-PSSA homogeneous cation exchange membranes,and it was also modified to improve the perviousness and enhance the anti-pollution ability.In the experiment,the modified effect of the membranes was showed by the number of membrane＇s migration,the contact angle and the assessment of membrane resistance.Beside,the excellet practically of membranes was illustrated by the experiment.As a result of the experiment,the ion mobility of the modified membrane was 98.2%,9.4% higher than the original membrane,and the hydrophilic angle decreased by 31 degrees,the membrane resistance decreased by 5.2Ω·cm2.

关 键 词：等离子体照射技术 均相阳离子交换膜 两性离子聚合物 选择透过性 

分 类 号：X703[环境科学与工程—环境工程]