MBR动态曝气及其在膜污染控制中的应用研究

发布时间：2018-06-20 18:51

本文选题：MBR + 动态曝气　；参考：《水处理技术》2016年02期

【摘要】：采用MBR处理石化废水,研究不同曝气方式对膜污染特征的影响。结果表明,当曝气强度分别为3.00、0.75、0.75-1.50和0.75-1.50-3.00 m~3/(m~2·h)时,MBR达到设定的最大跨膜压差20 kPa的时间分别为25.67、19.17、23.00、26.17 h,TMP的增长速率K分别由1.26、0.82、1.32、0.95 Pa/s增大到5.45、5.43、5.52、3.34 Pa/s,MBR总处理水量分别为33.88、25.30、30.36、34.54 L。MBR对COD、TOC和氨氮的平均去除率分别为79.30%、75.04%、64.94%。由此可知,动态曝气方式(0.75-1.50-3.00 m~3/(m~2·h))能够降低TMP增长速率,缓解膜污染,延长MBR运行时间,增加总处理水量。
[Abstract]:The effects of different aeration modes on the characteristics of membrane fouling were studied by MBR. The results showed that when the aeration intensity was 3.00,0.75,0.75-1.50 and 0.75-1.50-3.00 m~3/ (m~2. H) respectively, the time for MBR to set the maximum transmembrane pressure difference of 20 kPa was 25.67,19.17,23.00,26.17 h, and TMP growth rate K was respectively. 0.95 Pa/s increased to 5.45,5.43,5.52,3.34 Pa/s, and the total amount of water treated by MBR was 33.88,25.30,30.36,34.54 L.MBR to COD, TOC and ammonia nitrogen, respectively, 79.30%, 75.04%, 64.94%., respectively. Therefore, the dynamic aeration mode (0.75-1.50-3.00 m~3/ (m~2.)) could reduce the growth rate, alleviate membrane pollution, prolong the running time and increase the operation time. The total amount of water is treated.
【作者单位】：西安建筑科技大学环境与市政工程学院;
【基金】：高等学校博士学科点专项科研基金(20116120110008) 陕西省自然科学基础研究计划重点项目(2010JZ008)
【分类号】：X703;TQ028.8

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