中国工程科学Issue(7)：36-41,6.
DK型纳滤膜对水中微量邻苯二甲酸酯的吸附及截留特性
Adsorption dynamics and rejection characteristics of phthalic acid esters in DK nanofiltration membrane
摘要
Abstract
The-removal-of-trace-phthalic-acid-esters-(PAEs)-in-water-used-DK-nanofiltration-membrane-has-been-investigated.-The-adsorption-behavior-of-dimethyl-phthalate-(DMP),dieth-yl-phthalate-(DEP),di-n-butyl-phthalate-(DNBP)-and-di-iso-butyl-phthalate-(DIBP)-were-ana-lyzed.-Influence-of-Mw-and-logKow-of-PAEs-on-the-equilibrium-adsorption-capacity-and-rejection-characteristics-of-DK-nanofiltration-membrane-was-also-explored.-It-was-found-that-adsorption-isotherms-of-PAEs-in-DK-nanofiltration-membrane-fit-the-Freundlich-adsorption-equation-well.-The-rejection-characteristics-of-PAEs-involved-the-retention-of-adsorption-and-the-retention-of-membrane-pore-before-adsorption-reaches-saturation.-After-adsorption-reaches-saturation,the-re-jection-mechanisms-of-PAEs-could-be-described-by-pore-model,and-rejection-rate-(R)-of-DMP,-DEP,DNBP-and-DIBP-were-55%,78%,96%and-96.8%(0.5-MPa,30℃,PAEs’concen-trations-are-300μg/L),respectively.-The-results-indicated-that-the-trace-DNBP,DIBP-in-water-could-been-rejected-very-effectively-by-DK-nanofiltration-membrane.关键词
邻苯二甲酸酯/纳滤/吸附/截留Key words
phthalic acid esters/nanofiltration/adsorption/rejection分类
资源环境引用本文复制引用
金叶,吴礼光,张林..DK型纳滤膜对水中微量邻苯二甲酸酯的吸附及截留特性[J].中国工程科学,2014,(7):36-41,6.基金项目
浙江省重大科技专项（2009C03006-2）；国家自然科学基金重点项目(51238006) （51238006）
