Effect of rotary intensity on enhancement performance of rotary tubular microfiltration membrane separators

<P>ZHOU Xiantao; PAN Jiazhen; CHEN Wenmei; CHU Liangyin; LI Bixian; CHEN Liqing</P>

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Effect of rotary intensity on enhancement performance of rotary tubular microfiltration membrane separators

更新时间：2026-03-26

- Effect of rotary intensity on enhancement performance of rotary tubular microfiltration membrane separators
- CIESC Journal Vol. 57, Issue 2, (2006)
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- Online First：25 February 2006，
  
  Published：2006
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ZHOU Xiantao, PAN Jiazhen, CHEN Wenmei, et al. Effect of rotary intensity on enhancement performance of rotary tubular microfiltration membrane separators[J]. CIESC Journal, 2006, 57(2).
DOI：

ZHOU Xiantao, PAN Jiazhen, CHEN Wenmei, et al. Effect of rotary intensity on enhancement performance of rotary tubular microfiltration membrane separators[J]. CIESC Journal, 2006, 57(2).
DOI：

摘要

在分析旋转管式微滤膜分离器所具有的高切变特性、离心压差特性和传质机理特性基础上，将影响旋转管式微滤膜透过能力的因素归纳成能够反映微滤膜不可逆污染并随时间增加的结构透过因子、膜管静止时的可逆污染因子和膜管旋转产生的强化因子等3个要素.提出以膜管静止时的透过能力为比尺来度量膜管旋转强化时的透过能力，并将其定义为相对强化因子以表征膜管旋转产生强化作用的程度.在实验的基础上考察了不同浓度、不同压力和不同传质控制机理下旋转管式微滤膜的相对强化因子随旋转Taylor数的变化关系及其特性，进而分析产生其特性的原因，获得了旋转Taylor数对分离强化性能影响的辩证认识.

Abstract

Based on analyzing the characteristics of high shear ratio

centrifugal pressure difference and mass transfer mechanisms in rotary tubular microfiltration membrane separators

the factors affecting the permeation ability were summarized into three essential factors: the structure permeation factor which increased with time and reflected the role of both membrane structure and irreversible membrane fouling

the reversible membrane fouling factor when the membrane tube was in stationary

and the enhancement factor produced by the rotation of the membrane tube. A relative enhancement factor which was the ratio by taking the permeation ability when the membrane tube was in stationary as a scale to measure the permeation ability in rotation was proposed to denote the degree of enhancement produced by the rotation of membrane tube. The relationship of the relative enhancement factor with the rotary Taylor number in different concentrations

different pressures and different mass transfer controlling mechanisms were investigated by experiment

and then the causes of its characteristics were analyzed.

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