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聚醚砜/醋酸纤维素共混膜的制备及其在膜生物反应器中的应用研究 被引量:4

Preparation of PES/CA blending membrane and its application in membrane bioreactor
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摘要 以聚醚砜(PES)和醋酸纤维素(CA)为膜材料,采用L-S相转化法制备共混膜。当PES质量分数18%、聚乙烯吡咯烷酮(PVP)质量分数12%、CA质量分数2.6%、蒸发时间30 s、凝固浴温度303 K、凝固时间1800 s时,在0.2 MPa压力条件下,所制备的改性膜的纯水通量为606.70 L/(m2.h),高出PES膜1倍,牛血清蛋白(BSA)截留率变化不大。膜生物反应器(MBR)中PES/CA膜出水水质优良,运行中PES/CA膜抗污染性能优于PES膜。 The blending membrane is prepared by use of L-S phase inversion method with polyethersulfone (PES) and cellulose acetate (CA) as membrane materials. The experimental results show that with 18% of PES concentration, 12% of polyvinylpyrrolidone concentration, 2.6 % of CA concentration, 30 s of evaporation time, 303 K of coagulation bath temperature, 1 800 s of clotting time, and 0.2 MPa of pressure the pure water flux of modified membrane can reach 606.70 L/m^2· h, which two times the unmodified one, but with little changes in BSA rejection rate. The effluent treated by PES/CA membrane is good in water quality, and the anti-pollution performance of PES/CA membrane is also better than PES membrane.
出处 《现代化工》 CAS CSCD 北大核心 2009年第9期57-60,共4页 Modern Chemical Industry
基金 教育部新世纪优秀人才计划(NECT-07-0175) 教育部科学技术研究重点项目(107046) 上海市基础研究重点项目(08JC1400500) 教育部博士点基金新教师项目(200802551001)
关键词 聚醚砜 醋酸纤维素 共混膜 抗污染性 膜生物反应器 polyethersulfone cellulose acetate blending membrane anti-pollution performance membrane bio-reactor
作者简介 邱恒(1987-),女,硕士生; 薛罡(1971-),男,博士生,副教授,主要研究方向水处理工程与技术,通讯联系人,021-67792538,xuegang@dhu.edu.cn。
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