膜科学与技术

Position：Home >> Abstract

Effect of surface roughness of ceramic membrane on the performance of filtrating oily wastewater

Authors： ZHANG Bingbing，ZHONG Zhaoxiang，XING Weihong

Units： State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing University of Technology

KeyWords： ceramic membrane；surface morphology；vegetable oil；wastewater

ClassificationCode：TQ 02818

year,volume(issue):pagination： 2011,31(4):42-47

Abstract：

Membrane surface roughness plays an important role in the permeability of membranes. In this study, the information of surface morphology was provided by surface roughness tester, Scanning Electron Microscopy (SEM) and White Light Interferometer (WLI), and the effect of surface roughness of ceramic membrane on the performance of filtrating oily wastewater was investigated. The ceramic membranes with the same pore size and different surface roughness had the same pure water flux. The results of filtrating oily wastewater indicated that the rougher membranes had larger flux decline and lower steady flux than that of smoother ones. With the change of droplet size in the wastewater, the roughest membrane had the largest change of the steady flux, but the smoothest membrane hardly increased. Surface roughness had little effect on oil rejection. This study indicated that smoother membrane was suitable for treating oily wastewater.

Funds：

国家重点基础研究发展规划(2009CB623400）；国家自然科学基金项目(20636020，20806038）；江苏省高校科研成果产业化推进项目(JH07-014)；江苏省“六大”人才高峰项目；江苏省自然科学基金(BK2008504）。

AuthorIntro：

张兵兵(1983－），女，河南省宝丰县人，硕士研究生，研究方向为陶瓷膜表面粗糙度对分离性能的影响.* 通讯联系人，E-mail: xingwh@njut.edu.cn

Reference：

[1] Boussu K, Van der Bruggen B, Volodin A, et al. Roughness and hydrophobicity studies of nanofiltration membranes using different modes of AFM [J]. Journal of Colloid and Interface Science, 2005, 286: 632–638.
[2] Li Qilin, Xu Zhihua, Ingo Pinnau. Fouling of reverse osmosis membranes by biopolymers in wastewater secondary effluent: Role of membrane surface properties and initial permeate flux [J]. Journal of Membrane Science, 2007, 290: 173–181.
[3] Wyart Y, Georges G, Deumie C, et al. Membrane characterization by microscopic methods: Multiscale structure [J]. Journal of Membrane Science, 2008, 315: 82–92.
[4] 卞晓锴, 陆晓峰, 施柳青. 原子力显微镜及在膜科学技术研究中的应用[J]. 膜科学与技术, 2002, 22: 36– 40.
[5] Park N, Kwon B, Kim In S, et al. Biofouling potential of various NF membranes with respect to bacteria and their soluble microbial products (SMP): Characterizations, flux decline, and transport parameters [J]. Journal of Membrane Science, 2005, 258: 43–54.
[6] Bowen W R, Doneva T A. Atomic force microscopy studies of membranes: effect of surface roughness on double-layer interactions and particle adhesion [J]. Journal of Colloid and Interface Science, 2000, 229: 544–549.
[7] Vrijenhoek E M, Hong S, Elimelech M. Influence of membrane surface properties on initial rate of colloidal fouling of reverse osmosis and nanofiltration membranes[J]. Journal of Membrane Science, 2001, 188: 115–128.
[8] Riedl K, Girard B, Lencki R W. Influence of membrane structure on fouling layer morphology during apple juice clarification [J]. Journal of Membrane Science, 1998, 139: 155-166.
[9] Sular V, Okur A. New application of a surface roughness tester on fabrics [J]. American Association of Textile Chemists and Colorists, 2007, 7: 39-43.
[10] Wyart Y, Georges G, Deumie C, et al. Membrane characterization by microscopic methods: Multiscale structure [J]. Journal of Membrane Science, 2008, 315: 82–92.
[11] Koyuncu I, Brant J, Lüttge A, et al. A comparison of vertical scanning interferometry (VSI) and atomic force microscopy (AFM) for characterizing membrane surface topography [J]. Journal of Membrane Science, 2006, 278: 410–417.
[12] Bogner A, Jouneau P H, Thollet G, et al. A history of scanning electron microscopy developments: Towards "wet-STEM" imaging [J]. MICRON, 2007, 38: 390-401.
[13] Qin Xuanwen. Applications of the High Shearing Mixing Emulsors in the Fining Molecular Sieves [J]. Chemical Engineering and Machinery, 2004, 31: 225-226.
[14] Masahiko H, Hiroki I, Yoshiyasu K. Effect of skin layer surface structures on the flux behavior of RO membranes [J]. Journal of Membrane Science, 1996, 121: 209-215.
[15] Zhang Qi, Fan Yiqun, Xu Nanping. Effect of the surface properties on filtration performance of Al2O3–TiO2 composite membrane [J]. Separation and Purification Technology, 2009, 66: 306-312.
[16] Rizwan T, Bhattacharjee S. Initial Deposition of Colloidal Particles on a Rough Nanofiltration Membrane [J]. The Canadian Journal of Chemical Engineering, 2007, 85: 570-579.

Service：

【Download】【Collect】

《膜科学与技术》编辑部 Address: Bluestar building, 19 east beisanhuan road, chaoyang district, Beijing; 100029 Postal code; Telephone：010-80492417/010-80485372; Fax：010-80485372 ; Email：mkxyjs@163.com