Hydraulic resistance in microfiltration of titanium white waste acid through ceramic membranes

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• 作者：Zhao ; Yijiang ; Xing ; Weihong ; Xu ; Nanping ; Shi ; Jun
• 关键词：Ceramic membrane microfiltration ; Fouling ; Hydraulic resistance ; Cake ; Average specific resistance
• 刊名：Separation and Purification Technology
• 出版年：2003
• 出版时间：July 1, 2003
• 年：2003
• 卷：32
• 期：1-3
• 页码：99-104
• 全文大小：413 K

文摘

Effects of operational parameters on fouling of ceramic membranes during microfiltration of titanium white acid are studied. Based on resistance-in-series model, the total filtration resistance (R_t) is divided into four parts: polarization resistance (R_p), cake resistance (R_c), internal plugging resistance (R_i) and membrane's own resistance (R_m). Their values and the relative percentages as a function of the operating parameters is determined. The mass of cake (M_c) is measured and average specific resistance of cake (α_c) is also calculated for the further analysis of the change of R_c. The study will provide theoretical foundations for taking necessary actions to avoid or reduce fouling.