水处理过程中有机膜老化机理研究进展

过去20年间,我国膜技术领域取得了长足进步,在水资源、新能源、传统工业技术改造等方面发挥了重要作用.现有水处理过程中膜老化增速快、再利用难,为准确评估膜的服役寿命以确定经济可行的更换周期和后处置计划,综述了影响膜老化的内在因素、外在因素、表征方法和性能参数,探讨了膜性能因素、膜的化学/物理特性、分析方法及其相互联系.实...

Mechanism of organic membrane aging during water treatment: Current status and progress

In the past 20 years, China has made a great progress in the field of the membrane, which plays an important role in the water resources, the new energy, the traditional industrial technology transformation and other related fields. In order to accurately evaluate the service life of the membranes to determine the economical and feasible replacement cycle and the postdisposal plan, this paper systematically reviews the internal and external factors, the characterization methods and the performance parameters that affect the membrane aging, and also discusses the membrane performance factors, the chemical/physical properties, the analysis methods and their interrelationships. The inconsistent research results between the laboratory simulation and the actual operation show that in the study of the membrane aging process it is necessary to consider not only the interaction between the membrane material and the chemical cleaning agent, but also the interaction between the membrane and its surface contaminants. Due to the complexity of the membrane aging process, the life cycle analysis is one of the feasible methods to assess the impact of the membrane aging.