外旋流强化管式膜微滤的研究评述

在综述了国内外膜分离技术的发展基础上 ,分析了膜微滤的优缺点 ,并对提高膜通量、降低膜污染的外旋流强化管式膜微滤过程 ,给出了其研究的技术路线和方法     

A new microfiltration membrane with three-dimensional reticular architecture for Nano-pollutants removal from wastewater

This research provides a new insight into designing next-generation filtration materials for Nano-pollutants removal from wastewater, and potentially for gas/solid or liquid/solid separation in corrosive environment.Considering the high corrosion and oxidation resistance, Ti–40 Al–10 Nb–10 Cr porous alloy was prepared by powder metallurgy and used as a mechanical support with a pore size of around 10 μm. Subsequently, metallic Zn nanoparticles was coated on the Ti–40 Al–10 Nb–10 Cr porous framew...     

混凝沉淀-微滤-纳滤组合工艺处理小吨位分散型气田废水

采用混凝沉淀—微滤—纳滤组合工艺对气田废水进行处理。比较了PFS PAM,PFS PHAM,PFS PAM PHAM三种复合絮凝剂的处理效果,考察了压力、流速对微滤、纳滤渗透通量和截留率的影响,并在最优操作条件下考察了整个系统的处理效果。实验结果表明,三种絮凝剂中,PFS PAM PHAM絮凝剂对气田废水的处理效果最好,在微滤压力0.1MPa流速4.6m/s,纳滤压力2MPa,清洗间隔时间60min的最优操作条件下,三种水样的出水COD均小于60mg/L,含油量均小于1.3mg/L,氯离子含量均小于103mg/L,还原性硫化物几乎完全去除,达到了国家一级排放要求。