Properties and filtration performance of microporous metal membranes fabricated by rolling process

Journal of Water Reuse and Desalination

Park, Jiyeong¹  Park, No-Suk¹  Lee, Won-Hee²  Min, Seok-Hong³  Kim, Hyung-Soo⁴  Kim, Jong-Oh⁴ 

[1] Department of Civil Engineering and Engineering Research Institute, Gyeongsang National University, 501 Jinju-daero, Jinju 660-701, Korea;Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 133-791, Korea;Department of Metal and Materials Engineering, Gangneung-Wonju National University, 7 Jukheon-gil, Gangneung 210-702, Korea;Graduate School of Water Resources, Sungkyunkwan University, Jangan-gu, Suwon, Gyeonggi-do 440-746, Korea

关键词: metal mesh;    metal powder;    metal wire;    porous metal membrane;    rolling;    sintering;   

DOI  :  10.2166/wrd.2016.000

学科分类：工程和技术（综合）

来源: IWA Publishing

【 摘 要 】

We evaluated the filtration performance of microporous metal membranes fabricated by the rolling process. Metal wire meshes were rolled with thickness reduction ratios of 10, 20, and 30%. The pore size of the metal wire mesh membrane decreased with increasing rolling ratio, whereas the removal efficiency of the suspended solids and turbidity showed a very slight increase compared to that of an unrolled mesh membrane. The metal powder was dispersed on the surface of the rolled metal wire mesh membrane and bound with polyvinyl alcohol, then dried at 100°C for 1 h, and finally sintered at 1,000°C for 3 h. The mean pore size, suspended solids, and turbidity of the metal powder membrane at a rolling ratio of 30% were approximately 0.7 μm, 84% and 83%, respectively. Therefore, microporous metal membranes successfully fabricated by the rolling process were also sufficiently permeable filters.

【 授权许可】

CC BY-NC-ND