表征微滤膜过滤性能的膜堵塞模型演变及其新模型理念  

Evolution of the membrane clogging model to characterize the filtration performance of the microfiltration membrane and its new model concept

作　　者：王亚军[1,2] 李金守 常莺娜 WANG Yajun;LI Jinshou;CHANG Yingna(School of Civil Engineering,Lanzhou University of Technology;Western Engineering Research Center of Disaster Mitigation in Civil Engineering of Ministry of Education;China North Municipal Engineering Design and Research Institute Co.,Ltd.)

机构地区：[1]兰州理工大学土木工程学院 [2]西部土木工程防灾减灾教育部工程研究中心 [3]中国西北市政工程设计研究院有限公司

出　　处：《环境工程技术学报》2022年第4期1203-1209,共7页Journal of Environmental Engineering Technology

基　　金：国家自然科学基金项目(41967043);甘肃省自然科学基金项目(20JR10RA145,20JR5RA461);甘肃省高等学校产业支撑引导项目(2020C-40)。

摘　　要：为探究膜过滤过程中污染物迁移/沉积规律,推出一组符合实际过滤过程的数学模型,通过整合已有数学模型并分析其各自和共同的局限性,结合各类已有研究方法建立思路提出“非稳态膜堵塞模型拟合试验方法”理念,旨在深入剖析膜过滤过程中不同时间污染物在膜组件内部不同空间的分布状态,实现膜过滤过程及膜堵塞机理的全过程连续性研究,从而更加有针对性地解决膜组件内部不同截留层上污染物沉积问题,与此同时,提出模型优化技术为模型建立及精细化提供理论依据。To explore the rules of pollutant migration/deposition in the membrane filtration process,a set of mathematical models conforming to the actual filtration process was introduced.By integrating existing mathematical models and analyzing their respective and common limitations,combining various existing research methods to establish ideas,the concept of the"Unsteady Membrane Clogging Model Fitting Test Method"was put forward to deeply analyze the distribution of pollutants in different spaces inside the membrane module at different times during the membrane filtration process,and to realize the continuity of the whole process of the membrane filtration process and membrane clogging mechanism.In this way,the problem of pollutant deposition on the different trapping layers inside the membrane module could be solved more targetedly.At the same time,the model optimization technology was proposed to provide a theoretical basis for model establishment and refinement.

关 键 词：膜过滤性能 膜堵塞 数学模型 模型优化技术 

分 类 号：X703[环境科学与工程—环境工程]