CAUSE ANALYSIS OF SEVERE FOULING ON ULTRAFILTRATION MEMBRANE AND OFF-LINE CHEMICAL CLEANING THEREOF

CHANG Liang; WU Wenlong Henan Electric Power Testing and Research Institute

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CAUSE ANALYSIS OF SEVERE FOULING ON ULTRAFILTRATION MEMBRANE AND OFF-LINE CHEMICAL CLEANING THEREOF

更新时间：2025-09-28

- CAUSE ANALYSIS OF SEVERE FOULING ON ULTRAFILTRATION MEMBRANE AND OFF-LINE CHEMICAL CLEANING THEREOF
- Thermal Power Generation Vol. 39, Issue 5, Pages: 101-104(2010)
- 作者机构：
  
  河南电力试验研究院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM621.8
- Published：2010
- 稿件说明：
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CHANG Liang, WU Wenlong Henan Electric Power Testing and Research Institute. CAUSE ANALYSIS OF SEVERE FOULING ON ULTRAFILTRATION MEMBRANE AND OFF-LINE CHEMICAL CLEANING THEREOF[J]. Thermal power generation, 2010, 39(5): 101-104.
DOI：

CHANG Liang, WU Wenlong Henan Electric Power Testing and Research Institute. CAUSE ANALYSIS OF SEVERE FOULING ON ULTRAFILTRATION MEMBRANE AND OFF-LINE CHEMICAL CLEANING THEREOF[J]. Thermal power generation, 2010, 39(5): 101-104. DOI：

摘要

对某电厂锅炉补给水处理系统超滤膜的污染原因进行分析。利用常规分析方法与ICP光谱分析技术对污染物进行分析

确定污染物质为有机物、硅、铁等。由于有机物质与无机物质相互作用

清洗难度增加。采用离线清洗方式对单根膜元件进行化学清洗试验

效果良好。化学清洗后

单支膜元件的产水量由2～3m3/h增加至8～9m3/h;浓水侧压力提高到0.08MPa左右

单套装置出水量达到45～55m3/h

进出水压差0.02MPa左右

出水浊度为零

基本达到新膜状态。

Abstract

Cause analysis of fouling on ultrafiltration membrane in make up water treatment system of one power plant has been carried out.By using the conventional method and ICP spectroscopy technology

the composition of fouling has been analysed

the result shows the fouling is constituted from organic matters

silicon

and iron etc..Owing to the interaction between organic and inorganic matters

the difficulty of chemical cleaning is increased.A chemical cleaning test for a single membrane element has been carried out by using the method of off-line chemical cleaning

having good effectiveness.After chemical cleaning

the flow rate of water produced by a single membrane element has increased from 2~3 m3/h to 8~9 m3/h

the pressure on dense-water side being enhanced to about 0.08 MPa

the flow rate of effluent water from equipment of a complete set reaches 45~55 m3/h

the pressure difference of water between inlet and outlet is about 0.02 MPa

the turbidity of effluent water is zero

reaching basiscally to a state of new membrane.

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