膜科学与技术

AFM在PVDF/SiO2共混超滤膜抗污染分析中的应用

作者：付小康¹，王磊¹，黄丹曦¹，王旭东¹，孟晓荣²，吕永涛¹，张凯¹

单位： 1西安建筑科技大学环境与市政工程学院，陕西西安，710055， 2西安建筑科技大学理学院，陕西西安，710055

关键词： AFM；超滤膜；聚偏氟乙烯；出水有机物；作用力曲线；亲水改性

出版年,卷(期):页码： 2015,35(5):71-78

摘要：

出水有机物所造成的膜污染是限制PVDF超滤膜在城市生活污水处理中广泛应用的一个重要因素。有机物污染行为的研究对PVDF膜的改性显得尤为重要。本文利用相转化法制备不同SiO2添加量的PVDF超滤膜，研究了二级出水有机物对不同SiO2添加量改性膜的污染情况，并用自制原子力胶体探针分析污染物与膜以及污染物和污染物之间的作用力，从微观力学层面上分析和解释了改性膜抗污染性能。

A major factor limiting the use of Poly (vinylidene fluoride) (PVDF) ultrafiltration (UF) membrane of wastewater treatment is membrane fouling by Effluent Organic Matter (EfOM). An understanding of the fouling behavior of EfOM is needed to provide a basis for modification of PVDF UF membrane. In this work, PVDF membranes with adding different amount of SiO2 were modified via non-solvent phase induce separation method. The paper investigated the fouling behavior of the prepared membranes with adding different amount of SiO2 in secondary effluent organic matter, and the interaction between colloidal pollutants and membrane and pollutants’ were analyzed with self-made atomic force probe. This paper shows that the further analysis of the EfOM-membrane force curve can provide useful means of evaluating the anti-fouling ability of the modified membrane.

第一作者简介：付小康(1991-)，男，西安建筑科技大学，西安，硕士生，主要从事超滤膜水处理技术研究， E-mail：2672688431@qq.com；通信作者：王磊：E-mail：wl0178@126.com

参考文献：

[1] D Abdessemed，G Nezzal，R Ben Aim. Coagulation—adsorption—ultrafiltration for wastewater treatment and reuse[J].Desalinati-on，131 (2000) 307～314.
[2]B Van Der Bruggen，C Vandecasteele，T Van Gestel，et al. A review of pressure-drive-n membrane processes in wastewater treatme-nt and drinking water production[J]. Environ-mental Progress， 22 (2003) 46～56.
[3]S Liang，K Xiao，Y Mo，et al. A novel ZnO nanoparticle blended polyvinylidene flu-oride membrane for anti-irreversible fouling[J]. Journal of Membrane Science， 394–395 (2012) 184～192.
[4] L Yan，Y S Li，C B Xiang. Preparation of poly(vinylidene fluoride)(pvdf) ultrafiltration membrane modified by nano-sized alumina (Al2O3) and its antifouling research[J]. Polymer， 46 (2005) 7701～7706.
[5] C Jarusutthirak，G Amy，J-P Croué. Fouling characteristics of wastewater effluent org-anic matter (EfOM) isolates on NF and UF m-embranes[J]. Desalination，145 (2002) 247～ 255.
[6] P Le-Clech，V Chen，T A G. Fane. Foul-ing in membrane bioreactors used in wastewa-ter treatment[J]. Journal of Membrane Scienc-e， 284 (2006) 17～53.
[7] T Wintgens，T Melin，A Schäfer，et al. The role of membrane processes in municipal wastewater reclamation and reuse[J]. Desalin-ation， 178 (2005) 1～11.
[8] J F Hester，P Banerjee，Y Y Won，et al. ATRP of Amphiphilic Graft Copolymers Ba-sed on PVDF and Their Use as Membrane A-dditives[J]. Macromolecules， 35 (2002) 7652～7661.
[9] W Richard Bowen，N Hilal，R W Lovitt，et al. Atomic force microscope studies of membranes: force measurement and imaging in electrolyte solutions[J]. Journal of Membrane Science， 126 (1997) 77～89.
[10] N Hilal，W R Bowen. Atomic force mic-roscope study of the rejection of colloids by membrane pores[J]. Desalination， 150 (2002) 289～295.
[11] W Richard Bowen，N Hilal，R W Lovi-tt，et al. Characterisation of membrane surfa-ces: direct measurement of biological adhesion using an atomic force microscope[J]. Journal of Membrane Science， 154 (1999) 205～ 212.
[12] W R Bowen，N Hilal，R W Lovitt，et al. A new technique for membrane characteri-sation: direct measurement of the force of adh-esion of a single particle using an atomic force microscope[J]. Journal of Membrane Scienc-e， 139 (1998) 269～274.
[13] W S Ang，S Lee，M Elimelech. Chemi-cal and physical aspects of cleaning of organicfouled reverse osmosis membranes[J]. Journal of Membrane Science， 272 (2006) 198～ 210.
[14] S Lee，M Elimelech. Relating Organic Fouling of Reverse Osmosis Membranes to I-ntermolecular Adhesion Forces[J]. Environm-ental Science & Technology， 40 (2006) 980～987.
[15] Q Li，M Elimelech. Organic Fouling and Chemical Cleaning of Nanofiltration Membranes: Measurements and Mechanisms[J]. Environmental Science & Technology， 38 (2004) 4683～4693.
[16] M Hashino，K Hirami，T Ishigami，et al. Effect of kinds of membrane materials on membrane fouling with BSA[J]. Journal of M-embrane Science， 384 (2011) 157～165.
[17] L Wang，R Miao，X Wang，et al. Fou-ling Behavior of Typical Organic Foulants in Polyvinylidene Fluoride Ultrafiltration Memb-ranes: Characterization from Microforces[J]. Environmental Science & Technology， 47 (2013) 3708～3714.
[18] L.-Y. Yu, Z.-L. Xu, H.-M. Shen, H. Yang, Preparation and characterization of PVDF–SiO2 composite hollow fiber UF membrane by sol–gel method, Journal of Membrane Science, 337 (2009) 257-265.
[19] 祝振鑫. 膜材料的亲水性、膜表面对水的湿润性和水接触角的关系[J]. 膜科学与技术,2014,34(2):1~4.
[20] 沈惠玲,廖桦,肖长发. 添加剂PEG对PVDF/SiO2杂化膜性能的影响[J]. 膜科学与技术,2010,30(1):65~68.
[21] 于海琴,李永华,赵宏峥. SiO2/PSF杂化超滤膜制备和性能研究[J]. 膜科学以技术,
2010,30(4):28~33.
[22] J Pieracci，J V Crivello，G Belfort. Ph-otochemical modification of 10kDa polyethersulfone ultrafiltration membranes for reduction of biofouling[J].Journal of Membrane Scienc-e，156 (1999) 223～240.
[23] N Lee，G Amy，J -P Croué，et al. Mo-rphological analyses of natural organic matter (NOM) fouling of low-pressure membranes (MF/UF) [J].Journal of Membrane Science， 261 (2005) 7～16.
[24] H Yamamura，S Chae，K Kimura，et al. Transition in fouling mechanism in microfil-tration of a surface water[J]. Water Research，41 (2007) 3812～3822.
[25] J A Brant，A E Childress. Colloidal adh-esion to hydrophilic membrane surfaces[J]. Journal of Membrane Science， 241 (2004) 235～248.
[26] W R Bowen，T A Doneva，J A G Stoton. Protein deposition during cross-flow memb-rane filtration: AFM studies and flux loss[J]. Colloids and Surfaces B: Biointerfaces，27 (2003)103~113.

服务与反馈：

【文章下载】【加入收藏】

《膜科学与技术》编辑部地址：北京市朝阳区北三环东路19号蓝星大厦邮政编码：100029 电话：010-64426130/64433466 传真：010-80485372邮箱：mkxyjs@163.com