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首页> 外文会议>2009 ISEST;International symposium on environmental science and technology >Applied Research of Porous Ceramic Micro-filtration Membrane in Treatment of Landfill Leachate
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Applied Research of Porous Ceramic Micro-filtration Membrane in Treatment of Landfill Leachate

机译：多孔陶瓷微滤膜在垃圾渗滤液处理中的应用研究

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The landfill leachate was treated by porous ceramic micro-filtration membrane, and the effects of flux of membrane in different technological conditions were investigated. The research results indicated that the flux of membrane increases along with the increment of pressure and temperature. The suitable service pressure and the temperature could be set to 0.2-0.3 MPa and 50 °C separately. The influence of changing pH to remove the rate of COD and conductivity is very small. When pH increased, the flux of membrane reduces. The suitable scope of pH of landfill leachate should be 5-6. The initial flux of membrane depressed quickly, dorpping to 22.0 L/(m2·h) after 45 min and stabilizing basically in 20-21 L/(m2·h) after 120min. Using the frequency conversion velocity modulation technology, we could obtain the optimum velocity parameter and enhance the efficiency of the micro-filtration system. The flux of membrane could be restored to 94 % of the flux of the new membrane by the union of alkali washing and acid pickling.
机译：用多孔陶瓷微滤膜处理垃圾渗滤液，研究了膜通量在不同工艺条件下的影响。研究结果表明，膜通量随压力和温度的升高而增加。合适的使用压力和温度可以分别设置为0.2-0.3 MPa和50°C。改变pH值以去除COD速率和电导率的影响非常小。当pH增加时，膜通量减少。垃圾渗滤液的pH值的合适范围应为5-6。膜的初始通量迅速降低，在45分钟后降至22.0 L /（m2·h），在120分钟后基本稳定在20-21 L /（m2·h）。利用变频调速技术，可以获得最佳的速度参数，提高了微滤系统的效率。通过碱洗和酸洗的结合可以使膜通量恢复到新膜通量的94％。

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