反渗透系统的硫酸钙污染及清洗  

Study on Calcium Sulfate Fouling and Cleaning in RO Membrane System

作　　者：杨小奇[1] 靖大为[1] 罗美莲[1] 

机构地区：[1]天津城市建设学院膜技术研究中心,天津300384

出　　处：《天津城市建设学院学报》2011年第2期119-122,共4页Journal of Tianjin Institute of Urban Construction

摘　　要：通过单一污染物试验,分析了不同浓度硫酸钙进水对反渗透膜系统的污染过程,指出了膜表面硫酸钙的过饱和度是决定其污染速度的关键因素.通过分析比较纯水冲洗和化学清洗对不同浓度硫酸钙污染的清污效果,表明了高浓度硫酸钙快速污染的可恢复性.Through single fouling experiments,fouling processes of RO membrane by different concentrations of CaSO4 are analyzed,and that supersaturation degree determines the CaSO4 fouling rate is pointed out.By comparing the cleaning effects of water flushing and chemical cleaning on the fouling by different concentrations of CaSO4,it is indicated that fast fouling by high concentration CaSO4 restores easily.

关 键 词：反渗透系统 硫酸钙污染 膜污染清洗 

分 类 号：X703[环境科学与工程—环境工程]