纳滤膜对水中多环芳烃类物质的分离特性研究  

STUDY ON CHARACTERISTIC OF REMOVING POLYCYCLIC AROMATIC HYDROCARBONS FROM WATER BY NANOFILTRATION MEMBRANE

作　　者：王旭东[1] 李楠[1] 王磊[1] 程爱华[2] 张睿[1] 

机构地区：[1]西安建筑科技大学环境与市政工程学院,陕西西安710055 [2]西安科技大学地质与环境工程系,陕西西安710054

出　　处：《水处理技术》2010年第10期41-43,共3页Technology of Water Treatment

基　　金：国家水体污染控制与治理科技重大专项(2009ZX07212-002-005);陕西省教育厅专项基金资助项目(09JK543);西安市科技计划项目(CXY09025(4));西安建筑科技大学青年科技基金项目(QN0917)

摘　　要：以萘、菲、荧蒽为对象研究了不同操作压力、pH、离子强度条件下纳滤膜对多环芳烃类物质的去除特性。结果表明,纳滤膜对PAHs类物质的截留率达到90%以上,是有效的分离方法。选用BDXN-70去除PAHs的最佳处理条件为:操作压力0.4MPa,pH为10,离子强度(Ca2+)为0.4mS·cm-1。Naphthalene, phenanthrene, fluoranthene were taken as the study objects to investigate the effect of solution parameters such as operating pressure, pH, and ionic strength on the characteristic of removing PAHs by nanofiltration （NF） membrane. The experimental results indicated that the trace PAHs in watercould be removed very effectively by NF, and the average removal rate was above 90%. The optimal conditions to remove PAHs by BDXN-70 nanofiltration membrane are： the pressure is 0.4 MPa, pH is 10, and the electric conductivity rate is 0.4 mS·cm-1.

关 键 词：PAHS 纳滤膜 膜通量 截留率 

分 类 号：TQ028.8[化学工程]