Analysis of anti-fouling performance of wider spacer RO membrane module

WU Jianglin; ZHANG Zhaohui; WANG Liang; ZHAO Bin; LI Tengfei; CHEN Mengmeng

doi:10.11949/j.issn.0438-1157.20181257

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Analysis of anti-fouling performance of wider spacer RO membrane module

Separation engineering | 更新时间：2026-07-24

- Analysis of anti-fouling performance of wider spacer RO membrane module
- CIESC Journal Vol. 70, Issue 4, Pages: 1446-1454(2019)
- 作者机构：
  
  1.天津工业大学环境与化学工程学院，天津 300387
  2.天津工业大学省部共建分离膜与膜过程国家重点实验室，天津 300387
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20181257
  CLC： TQ 028.8
- Received：24 October 2018，
  
  Revised：2018-12-18，
  
  Online First：15 June 2020，
  
  Published：12 April 2019
- 稿件说明：
移动端阅览
吴降麟, 张朝晖, 王亮, 赵斌, 李腾飞, 陈萌萌. 宽流道反渗透膜元件抗污染性能分析[J]. 化工学报, 2019, 70(4): 1446-1454

WU Jianglin, ZHANG Zhaohui, WANG Liang, ZHAO Bin, LI Tengfei, CHEN Mengmeng. Analysis of anti-fouling performance of wider spacer RO membrane module[J]. CIESC Journal, 2019, 70(4): 1446-1454
吴降麟, 张朝晖, 王亮, 赵斌, 李腾飞, 陈萌萌. 宽流道反渗透膜元件抗污染性能分析[J]. 化工学报, 2019, 70(4): 1446-1454 DOI： 10.11949/j.issn.0438-1157.20181257.

WU Jianglin, ZHANG Zhaohui, WANG Liang, ZHAO Bin, LI Tengfei, CHEN Mengmeng. Analysis of anti-fouling performance of wider spacer RO membrane module[J]. CIESC Journal, 2019, 70(4): 1446-1454 DOI： 10.11949/j.issn.0438-1157.20181257.

摘要

以活性蓝MB-R和硫酸钠模拟高盐染色废水，分析了宽流道反渗透膜组件的抗污染性能，对比研究了不同流道宽度和膜内隔网定向角度变化对于膜组件抗污染性能及运行能耗的影响。实验结果表明，适当增加流道宽度可以有效减缓膜通量衰减速率，延长膜运行时间，但流道宽度增加到一定程度后膜组件抗污染性能不再随流道宽度增加而有明显改善。进水隔网定向角度对膜组件抗污染性能影响非常明显。实验结果表明，在流道宽度不变前提下，进水隔网定向角度从40°变成45°时165 min内膜通量衰减速率下降3.9%，一个低压冲洗周期内的膜运行时间延长了35.7%，低压冲洗后膜通量恢复率提高了4.5%。综合trade-off效应和进水压降分析，与普通反渗透组件相比，当宽流道组件的进水流道宽度达到30 mil（1 mil=0.025 mm），隔网定向45°时具有更优越的抗污染性能和更低的运行能耗。

Abstract

The high-salt dyeing wastewater was simulated by reactire blue MB-R and sodium sulfate. The effects of different channel height and spacer orientation on the anti-fouling performance and energy consumption of RO membrane modules were compared. The results showed that the membrane flux decline could be slowed down and the membrane running time could be prolonged by increasing the spacer thickness appropriately. However

the anti-fouling performance of the membrane module could not be improved significantly with the increase of the spacer thickness when the spacer thickness was increased to a certain extent. On the other hand

the influence of spacer orientation on the anti-fouling performance of membrane module was very obvious. The results suggested that when the spacer thickness remained unchanged and the spacer orientation changed from 40° to 45°

the membrane flux decline rate decreased by 3.9% after 165 min of operation

the filtration time of one low pressure flushing cycle was prolonged by 35.7%

and the flux recovery rate was increased by 4.5% after the low pressure flushing. The comprehensive analysis based on the trade-off effects and the feed channel pressure drops indicated that a better anti-fouling performance and lower operation energy consumption can be obtained when the feed channel height was set at 30 mil and the spacer orientation was set at 45°.

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references

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