光催化-膜分离耦合技术的水处理应用研究进展  

PROGRESS OF COMBINED PHOTOCATALYTIC AND MEMBRANE SEPARATION TECHNOLOGIES FOR THE APPLICATION OF WATER TREATMENT

作　　者：费锡智 杨晶晶 白仁碧 

机构地区：[1]苏州科技学院分离净化材料与技术研发中心,苏州科技学院环境科学与工程学院,江苏省环境科学与工程重点实验室,江苏苏州215009

出　　处：《水处理技术》2014年第12期11-18,共8页Technology of Water Treatment

摘　　要：介绍光催化-膜分离耦合工艺,它是在传统光催化技术中粉末催化剂难分离回收和废水处理后水质不够理想的基础上进行研发的。总结了不同构型的光催化膜反应器的特点及其存在的局限性,并简述了新型光催化膜反应器工艺运行时需考虑的因素。分析表明悬浮型光催化膜反应器的光催化效率明显高于负载型光催化膜反应器;针对悬浮式光催化膜反应器面临的由压力驱动引起的高能量输入和膜污染问题,指出光催化与渗透气化或膜蒸馏联用工艺所具有的独特优势。认为光催化/膜分离耦合工艺在水处理领域具有重要前景,今后研究应集中在高活性光催化剂的开发、高抗氧化性和耐污染的膜制备及光催化膜反应器结构的优化上。The combined photocatalytic and membrane separation process had been developed to solve the problem in the difficulty associated with the traditional photocatalytic technology to separate and recover the used fine photocatalyst particles from reactors and thus ensure the treated water quality.The hybrid approach of combining photocatalysis and membrane separation technology together for improved applications in water and wastewater treatment and their characteristics and possible limitations were reviewed. It also provided a brief summary on the factors that affecting the performance of those hybrid photocatalytic and membrane reactors. It showed that the catalytic efficiency of the hybrid photocatalytic and membrane reactor with the suspending catalyst was much higher than with the loaded catalyst. The photocatalysis integrated with pervaporation or distillation system had the obvious advantages on the low power input for the driving force of membrane and the pollution control of membrane surface which were the common problems of the hybrid reactor with the suspending catalyst. The hybrid photocatalytic and membrane reactor was recommended as a promising technology for water and wastewater treatment. The research should focus on the development of the catalyst with high efficiency,the preparation of the antioxidant and antifouling membrane,and the optimization of the reactor structure.

关 键 词：光催化氧化技术 膜分离技术 光催化-膜反应器 

分 类 号：TQ028.8[化学工程]