| 凹凸棒滤料曝气生物滤池对微污染原水的处理研究 |
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| 引用本文： | 林子增,王峰,王郑,夏汀,沈巍.凹凸棒滤料曝气生物滤池对微污染原水的处理研究[J].南京林业大学学报(自然科学版),2011,0(5):87-90. |
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| 作者姓名： | 林子增 王峰 王郑 夏汀 沈巍 |
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| 作者单位： | 1. 南京林业大学土木工程学院,江苏,南京,210037
2. 南京市市政设计研究院有限责任公司,江苏,南京,210008 |
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| 基金项目： | 江苏高校优势学科建设工程资助项目(PAPD); 南京市市政设计研究院有限责任公司学术带头人基金项目 |
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| 摘 要： | 利用具有典型分形特征的凹凸棒滤料作为填料，进行曝气生物滤池（BAF）处理微污染原水实验，根据滤料的挂膜性能，分析曝气生物滤池对微污染水的处理效果。结果表明：孔隙率3388 %，分形维数314的凹凸棒滤料曝气生物滤池，在水力负荷17 m3/ (m2·h)、水力停留时间90 min、气水比1〖DK〗∶1～12〖DK〗∶1、水温216～327 ℃条件下，20 d左右即可完成挂膜过程，自然挂膜容易，时间短，说明分形维数314的凹凸棒滤料表面较为粗糙，有利于微生物附着。正常运行阶段，曝气生物滤池对CODMn、NH3-N和浊度的平均去除率分别可达1466 %、8581 %和5300 %。
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| 关 键 词： | 曝气生物滤池 微污染原水 分形理论 凹凸棒滤料 |
Study on treatment of slightly polluted raw water with biological aerated filter filled with attapulgite |
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| LIN Zizeng,WANG Feng,WANG Zheng,XIA Ting,HEN Wei.Study on treatment of slightly polluted raw water with biological aerated filter filled with attapulgite[J].Journal of Nanjing Forestry University(Natural Sciences ),2011,0(5):87-90. |
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| Authors: | LIN Zizeng WANG Feng WANG Zheng XIA Ting HEN Wei |
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| Institution: | LIN Zizeng1,WANG Feng2,WANG Zheng1,XIA Ting2,SHEN Wei2(1.College of Civil Engineering,Nanjing Forestry University,Nanjing 210037,China,2.Nanjing Municipal Design and Research Institute Co.,Ltd.,Nanjing 210008,China) |
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| Abstract: | The micro-polluted raw water was treated by bidoyical oerated filter(BAF) using media with representative fractal characteristics in order to investigate the attapulgite media startup performance and the treatment effect of filter.During filter startup phase,the biofilm culturing process finished in about 20 days under the condition that hydraulic loading was controlled at 1.7 m3/(m2·h),hydraulic retention time 90 min,gas-water ratio 1∶1—1.2∶1 and water tempertature 21.6—32.7 ℃.The results showed that the rough surface of attapulgite media whose fractal dimension was 3.14 and it improved the microbial biofilm growth.During filter operation phase,the removal rate of CODMn,NH3-N,turbidity could reach 14.66 %,85.81 % and 53.00 %respectively,which proved a satisfied degradation effect. |
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| Keywords: | biological aerated filter micro-polluted raw water fractal theory attapulgite media |
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