高校化学工程学报2017，Vol.31Issue(3)：547-553,7.DOI:10.3969/j.issn.1003-9015.2017.03.007
基于油水污染机理的动态膜清洗实验研究
Study on Dynamic Membrane Cleaning Based on Oil-Water Pollution Mechanism
陈鹏鹏 1张然 1张雪芳 1俞路 1潘艳秋1
作者信息
- 1. 大连理工大学化工与环境生命学部化工学院,辽宁大连 116024
- 折叠
摘要
Abstract
α-Al2O3 membrane supported ZrO2 dynamic membranes were prepared and applied in oil-water emulsion separation. Four reagents were used in polluted membrane cleaning based on pollution mechanism. The optimum cleaning sequence (NaOH-Tween-80-HCl-citric acid) is confirmed by theoretical analysis. For one-step cleaning, flux recovery rates under different concentrations of cleaning reagents were studied and the optimum reagent concentration and cleaning time were obtained. The performance of these reagents is in an order of HCl > NaOH > citric acid > Tween-80. Multi-step cleaning results show that the four-step cleaning method has the best performance with flux recovery rate of 79.8%. Repetitive cleaning results combined with filtration resistance model and infrared analysis show that the supporting membrane can be reused for 3~4 times. This study is helpful in investigating cleaning and recycling of dynamic membranes.关键词
动态膜/污染机理/清洗/通量恢复Key words
dynamic membrane/pollution mechanism/cleaning/flux recovery分类
生物科学引用本文复制引用
陈鹏鹏,张然,张雪芳,俞路,潘艳秋..基于油水污染机理的动态膜清洗实验研究[J].高校化学工程学报,2017,31(3):547-553,7.
