膜科学与技术

Position：Home >> Abstract

Experimental Study on Critical Flux and Sustainable Flux in the Process of PVDF Hollow Fiber UF Membrane on the Raw Water of Taihu

Authors： ZHANG Kai-ge1，LI Cui-mei1*，Zha Qiao-zhen2

Units： 1.School of Environmental Science and Engineering，Suzhou University of Science and Technology，Suzhou 215009，China; 2.Suzhou National Hi-Tech District Water Co., Ltd., Suzhou 215000，China

KeyWords： ultrafiltration membrane; critical flux; sustainable flux; transmembrane pressure difference

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2016,36(3):109-114

Abstract：

Confirming the numerical value of critical flux and sustainable flux of Taihu water through the using of raw water for ultra-filtration directly. The analysis of ultra-filtration membrane’s trans-membrane pressure, effluent quality in critical flux and sustainable flux and system performance under extreme condition may prove that critical flux and sustainable flux are feasible. The result shows that numerical value of ultra-filtration membrane’s critical flux ranges form 27 to 30L/(m2•h), while sustainable flux’s maximum value is 45L/(m2•h). When raw water’s condition are similar to each other, the starting operation pressure of critical flux and sustainable flux are both around 8kPa and their effluent quality are basically the same. However, within a backwashing cycle, the transmembrane pressure values of sustainable flux grow faster than that of critical flux around 2.3 kPa; transmembrane pressure of sustainable flux has a great increasing range which stabilizes in around 91% when the raw water’s turbidity are high after rain or low temperature. But the membrane’s state may recover to normal basically after backwashing.

Funds：

国家“十二五”重大水专项“太湖流域饮用水安全保障计划”项目（2012ZX07403-001-003）

AuthorIntro：

作者简介：张凯歌（1991-），男，江苏睢宁，在读硕士研究生，研究方向为城市水资源与给水工程设计运行优化，E-mail：136190979@qq.com。

Reference：

[1] R.W. Field, D. Wu, J.A. Howell, B.B. Gupta, Critical flux concept for microfiltration fouling [J]. Journal of Membrane Science. 1995, 100(3): 259–272.
[2] Pearce G K. Introduction to membranes: water and wastewater-RO pre-treatment [J]. Filtration and Separation, 2007 (44): 28-31.
[3] 王辉. 超滤组合工艺优化与运行效能研究[D]. 哈尔滨：哈尔滨工业大学，2012.
[4] 何青. 几种优化操作条件提高“零污染通量”的方法及其机理性研究[D]. 青岛：青岛理工大学，2013.
[5] 姚金苗，王湛，梁艳莉等. 超、微滤过程中临界通量的研究进展[J]. 膜科学与技术, 2008, 28(2): 10-14.
[6] 董秉直，李伟英，秦祖群等. 用超滤膜处理长江水[J]. 膜科学与技术, 2005, 25(1): 34-37.
[7] 齐鲁，王洪臣，郑祥等. 超滤膜在饮用水处理中临界通量的影响因素研究[J]. 工业用水与废水, 2011, (6): 10-14.
[8] 李顺义，位红卫，吕斯濠等. MBR的临界膜通量及其影响研究[J]. 环境工程学报, 2009, 3(9): 1585-1588.

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