净水技术Issue(5)：76-81,86,7.
微污染原水的膨润土／粉末活性炭和 MBR组合工艺处理技术
Technology of Combined Processes of Bentonite/Powdered Activated Carbon and MBR for Treatment of Micro-Polluted Raw Water
摘要
Abstract
In this paper,the adsorption effects of pollutants such as NH 3 N,UV 254 were investigating by using bentonite and powdered activated carbon (PAC)as adsorbent. The effects of MBR combined with different dosages of bentonite/ PAC on removal of NH3 N and UV254 ,and influence of microbial activity,membrane specific flux and particle size of organic residue in effluent were studied. The results show that the adsorption effect of bentonite on UV254 is weak and the average removal rate is only 20. 02%;while PAC can remove UV254 effectively and the average removal rate is 89. 68% . Bentonite MBR can effectively remove NH3 N,the average removal rate is 92. 8%,but effect of bentonite MBR on removal of UV 254 is not obvious and the average removal rate is only 51. 13% . PAC combined with MBR can effectively and stably remove NH3 N and UV254 ,and the average removal rates of NH 3 N and UV254 are 94. 5% and 89. 55%,respectively. Not only the number of molecular particle in effluent is small,but also the molecular particle size distribution range is narrower. And the vast majority of the large size of the particles is removed.关键词
微污染原水/氨氮/UV254/粉末活性炭/膨润土/膜生物反应器/去除性能Key words
micro-polluted raw water/NH3 N/UV254/powdered activated carbon (PAC)/bentonite/membrane bioreactor (MBR)/removal performance分类
建筑与水利引用本文复制引用
林艳雯,梅胜,李冬梅,袁林,刘贝,李绍秀..微污染原水的膨润土／粉末活性炭和 MBR组合工艺处理技术[J].净水技术,2015,(5):76-81,86,7.基金项目
国家自然科学基金（No51108094，No51378129）；广东省科技计划项目（2013B020413002）；禅城区产学研专项 （）
