北京交通大学学报2011，Vol.35Issue(4)：125-129,5.
污水回用深度处理中有机物对反渗透膜污染研究
Fouling of reverse osmosis membrane by organic substances in advanced wastewater reclamation
摘要
Abstract
Bovine serum albumin (BSA) and sodium alginate were used to represent protein and polysaccharides. Orthogonal test with function of interaction was used to analyze the effects and their synergistic actions. Furthermore, scanning electron micrograph (SEM) was used to detect the organic fouling layer on membranes. The result shows that the impact of alginate on membrane fouling is more significant than that of BSA, and the synergistic influence between them can increase membrane fouling notably. Membrane fouling is more severe in the presence of Ca2+ compared to Mg2+ because of its ability to bridge organic substances, which can result in denser fouling layer. Increasing the ionic strength can lead to weaker electrostatic repulsion and rapid fouling. The images of membrane fouling surface illustrate that the gel of organic matter is thick and dense, which induces severe membrane fouling.关键词
污水回用深度处理/反渗透/膜污染/有机物Key words
advanced wastewater reclamation/ reverse osmosis/ membrane fouling/ organic substances分类
资源环境引用本文复制引用
陶若虹,姚宏,邢锴..污水回用深度处理中有机物对反渗透膜污染研究[J].北京交通大学学报,2011,35(4):125-129,5.基金项目
天津市科技创新专项资金资助项目(06FZZDSH0900) （06FZZDSH0900）
