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凹凸棒滤料曝气生物滤池对微污染原水的处理研究(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2011年05期
Page:
87-90
Column:
研究论文
publishdate:
2011-09-30

Article Info:/Info

Title:
Study on treatment of slightly polluted raw water with biological aerated filter filled with attapulgite
Author(s):
LIN Zizeng1*
1.College of Civil Engineering,Nanjing Forestry University, Nanjing 210037, China;2.Nanjing Municipal Design and Research Institute Co., Ltd., Nanjing 210008, China
Keywords:
biological aerated filter micropolluted raw water fractal theory attapulgite media
Classification number :
TU9912
DOI:
10.3969/j.jssn.1000-2006.2011.05.019
Document Code:
A
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 m3/(m2〖DK〗·h), hydraulic retention time 90 min, gaswater ratio 1〖DK〗∶1—12〖DK〗∶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 CODMn, NH3N, turbidity could reach 1466 %, 8581 % and 5300 %respectively, which proved a satisfied degradation effect.

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Last Update: 2011-09-30