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Adsorption of Di-2-ethylohexyle Phthalate onto Nanofiltration Membranes at Filtering Initial Phase

Authors： CHENG Aihua1,2，WANG Lei2，WANG Xudong2

Units： 1. School of Environment and Geology, Xi’an University of Science and Technology, Xi’an 710054, China ; 2.School of Environment and Municipal Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China

KeyWords： Di-2-ethylohexyle Phthalate (DEHP); Nanofiltration; Adsorption; Retention

ClassificationCode：X172

year,volume(issue):pagination： 2012,32(4):44-49

Abstract：

The adsorption and retention of di-2-ethylohexyle phthalate (DEHP), in different water matrices (Milli-Q water, simulated water and river water) by nanofiltration (NF) was examined using two types of nanofiltration membranes (NF90 and NF70). The results showed that DEHP at a concentration of 100 μg/L could be effectively removed by the NF90, and the retention was more than 95%, and the adsorption was about 40% at filtering initial phase. Adsorption of DEHP on membranes was related to operation pressure, pH，coexisting organic and inorganic compounds, and membrane pore size. But no significant effect of DEHP concentration was observed.

Funds：

国家自然科学基金项目（51008243）；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）；陕西省教育厅重点实验室基金资助项目（11JS057）

AuthorIntro：

程爱华（1977－），女，新疆昌吉人，博士，副教授，自2001年起在西安科技大学任教，主要从事环境工程方面的教学和研究工作。Tel：029-85583188，E-mail：cah_cheng@126.com。

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