Membrane Science and Technology

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Antifoam pollution on ceramic membrane and regeneration

Authors： SONG Ji-shuang1，ZHAO Min1，MENG Xiang-li2

Units： 1.College of chemistry and chemical engineering,Nanjing University of Technology,Nanjing Jiangsu 210009,China；2. Daiyu Chemicals (Zhengzhou) Co., Ltd，Henan Zhengzhou 450001, China

KeyWords： ceramic membrane; defoamer; membrane fouling; membrane cleaning

ClassificationCode：TQ028

year,volume(issue):pagination： 2014, 34(3):104-109

Abstract：

The ceramic membrane separation technique is one of the most advanced separation technologies, and it is widely used in biological fermentation and other industrial processes. Such industrial processes usually involve mixing that will produce foam, but the foam have an adverse effect on production. Using antifoam to reduce foam is necessary. The purpose of this article is to study the fouling effect of various antifoams on ceramic membranes, and cleaning of the antifoam contaminated membranes.The results showed that PPG-4000 and Dow Corning 1410 cause the worst contamination. The ceramic membranes were cleaned with 0.5% D3-Ultra® 10 and 0.2% D3-Ultra® 75 specialty chemicals, and flux was restored.

Funds：

南京工业大学“三创领军人才创新基金

AuthorIntro：

宋纪双（1987—），男，安徽合肥，汉族，工学硕士，主要研究方向为消泡剂对陶瓷膜过滤的污染与清洗；赵民（联系人），教授，E-mail：zhaomin80@hotmail.com

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