Novel preparation of ceramic nanofiltration membrane for the removal of trace organic compounds

被引：4

作者：

Chung, Youngkun ^{[1
]}

Lee, Mi-Young ^{[1
]}

Park, Hosik ^{[2
]}

Park, You-In ^{[2
]}

Nam, Seung-Eun ^{[2
]}

Lee, Pyung Soo ^{[2
]}

Hwang, Yu Sik ^{[3
]}

Kang, Seoktae ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, Dept Civil & Environm Engn, 291 Daehak Ro, Daejeon 305701, South Korea

[2] Korea Res Inst Chem Technol, Adv Mat Div, Ctr Membranes, 141 Gajeong Ro, Daejeon 34114, South Korea

[3] Korea Inst Toxicol, Future Environm Res Ctr, Jinju 660844, South Korea

来源：

DESALINATION AND WATER TREATMENT | 2018年 / 101卷

关键词：

Ceramic nanofiltration membrane; Filtration coating; Geosmin; Trace organic compounds; WATER-TREATMENT; DRINKING-WATER; MICROPOLLUTANTS; OSMOSIS; CONTAMINANTS; REJECTION;

D O I：

10.5004/dwt.2018.21642

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this research, ceramic ultrafiltration (UF) membrane was modified to nanofiltration (NF) membrane by simple and novel filtration coating with approximately 45 nm of alumina-zirconia (Al-Zr) nanoparticles. The prepared ceramic NF membrane showed excellent performance with 15 LMH/bar of specific water flux, similar to 1,000 Da of molecular weight cut-off, and 58% of CaCl2 rejection. The removal efficiency of tested trace organic compounds (TrOCs) was ranged from 2.2% +/- 0.3% (caffeine) and 65.0% +/- 2.1% (geosmin) at pH 7.4, and the major removal mechanisms of the prepared ceramic NF membrane were the size exclusion and electrostatic adsorption originated from the thick cross-sectional layer of positively charged Al-Zr nanoparticles deposited on the pores of ceramic UF membranes. The novel coating method for preparing ceramic NF membrane is expected to be applicable for the commercial manufacturing processes to remove TrOCs.

引用

页码：31 / 36

页数：6

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