纳滤膜去除水中微量酚类雌激素的试验研究  

Research on Removal of Trace Phenolic Estrogens in Water by Nanofiltration Membrane

作　　者：程爱华[1] 王磊[1] 王旭东[1] 孙晓莉[1] 张莉[1] 张睿[1] 王志盈[1] 

机构地区：[1]西安建筑科技大学环境与市政工程学院

出　　处：《中国给水排水》2007年第19期73-76,共4页China Water & Wastewater

基　　金：国家自然科学基金资助项目(50578131);陕西省自然科学基金资助项目(2005E240);霍英东教育基金高等院校青年教师优选资助课题(94003)

摘　　要：采用BDXN-90芳香聚酰胺复合纳滤膜处理水中的微量酚类雌激素,考察了操作压力、原水污染物浓度、离子强度和pH值等因素对截留效果的影响。结果表明,纳滤技术是去除水中微量酚类雌激素的有效方法,纳滤膜对4种不同酚类雌激素的截留率均大于90%;在不调节原水pH值及离子强度的条件下,截留率由高到低依次为五氯酚、4-壬基酚、双酚A、2,4-二氯苯酚;影响膜过滤性能的主要因素是操作压力、离子强度和pH值,原水中酚类雌激素浓度对膜过滤性能的影响不大;膜过滤的最佳条件为:操作压力为0.4 MPa,pH值为11,电导率为0 mS/cm。The BDXN-90 aromatic polyamide composite membrane was used to treat trace phenolic estrogens in water. The effect of operation pressure, raw water concentration, ionic strength, pH value, and other factors on the rejection efficiency was investigated. The results indicate that the rejection rates of four different kinds of phenolic estrogens in water by the nanofiltration membrane can reach above 90%. When the pH and ionic strength of the raw water are unregulated, the precedence order of the rejection rates from high to low is pentachlorophenol, 4-nonyl phenol, bisphenol A and 2,4-dichlorophenol. The pressure, pH and ionic strength are the most tion performance, while the inflow concentration is less important factors influencing the membrane filtrasignificant. The optimal conditions of nanofiltration are ： pressure of 0.4 MPa, pH of 11, and conductivity of 0 mS/cm.

关 键 词：酚类雌激素 纳滤膜 膜通量 截留率 

分 类 号：X703[环境科学与工程—环境工程] TU991.2[建筑科学—市政工程]