腐殖酸共存条件下双酚A的纳滤分离效果研究  

BISPHENOL A REMOVAL FROM WATER OF HUMIC ACID USING NF MEMBRANES

作　　者：孙晓丽[1] 王磊[1] 程爱华[1] 王旭东[1] 林峰[1] 张虹[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

出　　处：《水处理技术》2008年第6期16-18,22,共4页Technology of Water Treatment

基　　金：国家自然科学基金资助项目(50578131);霍英东教育基金高等院校青年教师优选资助课题(94003);陕西省自然科学基金资助项目(2005E240);陕西省教育厅专项科研计划项目(07JK294)

摘　　要：双酚A(BPA)是一种痕量的危害性极大的环境内分泌干扰物质,主要考察了在天然有机物(腐殖酸)存在的条件下,pH、离子强度、操作压力对纳滤分离水中BPA的效果。结果表明,用纳滤膜去除水中BPA是完全可行的,其截留率达94%以上;当溶液的pH值大于BPA的pKa(10.1)时,去除效果最好;离子强度增大,BPA的截留率会降低;操作压力对纳滤去除BPA的影响较小。Bisphenol A （BPA）was a sort of trace quantity harmful maximum environment endocrine disruptors. With humic acid, three primary factors on removing BPA by Nanofiltration membranes were optimized. These include pH,ionic strength,operating pressure. Results indicated that removing BPA with nanofiltration membrane was feasible, and retention of BPA was more than 94%. As pH of solution approached thepKa of BPA（10.1）, BPA removal efficiency were good. When ionic strength increased, retention of BPA would drop significantly. The effect of operating pressure on BPA re- moval was minor.

关 键 词：双酚A 纳滤膜 内分泌干扰物 腐殖酸 

分 类 号：TQ028.8[化学工程]