Preparation of composite zeolite membrane separator/contactor for ozone water treatment
Preparation of composite zeolite membrane separator/contactor for ozone water treatment
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DOI：
10.1016/j.micromeso.2007.12.038
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发表时间：
2008-10
影响因子：
5.2
通讯作者：
S. Heng;K. Yeung;A. Julbe;A. Ayral;J. Schrotter
中科院分区：
文献类型：
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作者：
S. Heng;K. Yeung;A. Julbe;A. Ayral;J. Schrotter
将高比表面积的γ-Al_2O_3包覆在ZSM-5膜的多孔陶瓷载体上，制得复合膜。在单个陶瓷颗粒的表面涂覆了一层薄薄的γ-Al_2O_3，使接触表面增加了约50m2。臭氧处理邻苯二甲酸盐污染水的结果表明，在间歇反应器中用传统的Sparger进行臭氧氧化可使TOC降低1.1%，简单地用膜分布器代替Sparger可使TOC的去除达到20%。提供膜接触器使这个值增加到25%，而同时膜渗透汽化水导致40%的TOC降解。这表明，利用膜作为分布器、接触器和分离器的组合功能的紧凑型膜反应器单元可以实现对臭氧水的强化处理。
A composite membrane was prepared by coating high surface area γ-Al2O3on the porous ceramic support of the ZSM-5 membrane. A thin layer of γ-Al2O3was coated on the surface of the individual ceramic particles to increase the contact surface by about 50m2. Ozone treatment of phthalate contaminated water showed that ozonization with traditional sparger in a batch reactor yielded a 1.1% decrease in TOC, and simply replacing the sparger with a membrane distributor gave a 20% TOC removal. Providing a membrane contactor increases this value to 25%, while simultaneous membrane pervaporation of water resulted in 40% TOC degradation. This shows that it is possible to achieved enhanced ozone water treatment from a compact membrane reactor unit that uses the combined function of membrane as distributor, contactor and separator.