Numerical studies on dynamic characteristics of oil-water separation in loop flotation column using a population balance model

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• 作者：Xiaolei Cai^a ; Jiaqing Chen^b ; ^{jiaqing@bipt.edu.cn} ; Meili Liu^b ; Yipeng Ji^b ; Shan An^b
• 关键词：Flotation ; Turbulent kinetic energy ; Oil droplets ; PBM ; Coalescence ; Breakage ; Separation characteristics
• 刊名：Separation and Purification Technology
• 出版年：2017
• 出版时间：4 April 2017
• 年：2017
• 卷：176
• 期：Complete
• 页码：134-144
• 全文大小：1304 K
• 卷排序：176

文摘

A research method coupled experiment with CFD-PBM was put forward to study on dynamic characteristics of oil-water separation under different turbulent kinetic energies. It is beneficial to study the mechanism of flotation at different scales. The dynamic separation characteristics including the variation tendency of the oil droplet diameter distribution, the oil droplet diameter distribution in equilibrium, the Sauter-Mean diameter, and the oil-water separation efficiency under different turbulent kinetic energies both from micro scale and macro scale. A relationship between the dynamic behavior at micro scale and the separation characteristics of oil and water at macro scale was established by statistical analysis of the oil droplet diameter distribution, the oil concentration distribution and the separation efficiency.