Comparison between BWRO membrane and SWRO membrane

ZHOU Yong; GAO Congjie

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Comparison between BWRO membrane and SWRO membrane

更新时间：2025-12-10

- Comparison between BWRO membrane and SWRO membrane
- CIESC Journal Issue 10, Pages: 2590-2595(2010)
- 作者机构：
  
  1. 中国海洋大学化学化工学院
  2. 杭州水处理技术研究开发中心
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 October 2010，
  
  Published：05 October 2010
- 稿件说明：
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ZHOU Yong, GAO Congjie. Comparison between BWRO membrane and SWRO membrane[J]. CIESC Journal, 2010, (10): 2590-2595.
DOI：

ZHOU Yong, GAO Congjie. Comparison between BWRO membrane and SWRO membrane[J]. CIESC Journal, 2010, (10): 2590-2595. DOI：

摘要

采用均苯三甲酰氯和间苯二胺通过界面合法分别得到苦咸水反渗透复合膜和海水反渗透复合膜。两者在低盐浓度时，对氯化钠的脱除率相近;在高盐浓度时，苦咸水反渗透复合膜对氯化钠的脱除率明显低于海水反渗透复合膜。用扫描电镜、原子力显微镜分析两者表面形态发现海水反渗透复合膜表面粗糙度更小。X射线光电子能谱分析结果表明，海水反渗透复合膜表面的羧酸根含量更多。

Abstract

Two kinds of reverse osmosis (RO)membrane for brackish water (BW)and sea water (SW)were prepared with trimesoyl chloride (TMC)and m-phenylenediamine (MPD)on the polysulphone supporting film through interfacial polymerization technique.The membranes were compared using permeation experiments with salt water

scanning electronic microscopy (SEM)

X-ray photoelectronic spectroscopy (XPS)and atomic force microscopy (AFM）.The study shows that SWRO membrane has higher rejection for NaCl but low flux for water compared to the BWRO membrane

because the surface of SWRO membrane contains more hydrophilic group (—COOH)according to the XPS result

and presents lower roughness according to the result of SEM and AFM.

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