Drinking water treatment in a gravimetric flow system with TiO2 coated membranes

被引：24

作者：

Bergamasco, Rosangela ^{[1
]}

da Silva, Flavia Vieira ^{[1
]}

Arakawa, Flavia Sayuri ^{[1
]}

Yamaguchi, Natalia Ueda ^{[1
]}

Miranda Reis, Miria Hespanhol ^{[2
]}

Tavares, Carlos J. ^{[3
]}

Pessoa Sousa de Amorim, Maria Teresa ^{[4
]}

Granhen Tavares, Celia Regina ^{[1
]}

机构：

[1] Univ Estadual Maringa, Dept Chem Engn, BR-87020900 Maringa, Parana, Brazil

[2] Univ Fed Uberlandia, Dept Chem Engn, BR-38400902 Uberlandia, MG, Brazil

[3] Univ Minho, Dept Fis, P-4800058 Guimaraes, Portugal

[4] Univ Minho, Dept Engn Text, Ctr Ciencia & Tecnol, P-4800058 Guimaraes, Portugal

来源：

CHEMICAL ENGINEERING JOURNAL | 2011年 / 174卷 / 01期

关键词：

Drinking water; Membrane modification; TiO2; film; Membrane fouling; THIN-FILMS; ULTRAFILTRATION; NANOPARTICLES; PERFORMANCE; COATINGS;

D O I：

10.1016/j.cej.2011.08.056

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This paper presents filtration results for drinking water treatment obtained with a commercial cellulose acetate membrane of 0.45 mu m pore diameter, with and without TiO2 coating. The deposition of titanium dioxide thin films onto membrane surface was made by pulsed-frequency d.c. reactive magnetron sputtering at room temperature from a high purity Ti target in Ar/O-2/N-2 atmosphere, at different conditions for cathode current and for deposition time. The proposed membranes were used in a filtration system driven by gravitation without the requirement of energy supply. The obtained results showed that the proposed system is able to remove color and turbidity from raw water. Besides, the modified membrane presented better results than the neat one regarding to membrane fouling and chlorine removal. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：102 / 109

页数：8

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