| 凹凸棒复合滤料生物过滤去除NH_4~+-N |
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| 引用本文： | 芦霞,王郑,田龙杰,马磊,杨铠诚,刘璐,申明杨,孙海.凹凸棒复合滤料生物过滤去除NH_4~+-N[J].环保科技,2010,16(4):22-25. |
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| 作者姓名： | 芦霞 王郑 田龙杰 马磊 杨铠诚 刘璐 申明杨 孙海 |
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| 作者单位： | 南京林业大学土木工程学院;南京林业大学南方学院; |
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| 基金项目： | 2007 年南京林业大学科技创新基金，南京林业大学2009年大学生科技创新项目 |
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| 摘 要： | 采用凹凸棒复合滤料部分替代石英砂,利用凹凸棒复合滤料良好的吸附和生物挂膜性能对普通滤池进行生物强化。试验研究表明:降低滤速可以提高生物过滤对NH4+-N的去除率,最佳滤速为4 m/h。水温越高,NH4+-N的去除率越高,但在水温较低时生物过滤对NH4+-N仍能保持一定的去除率。原水中COD浓度越高,生物过滤对NH4+-N的去除率越低。凹凸棒复合滤料生物过滤对于突发性重金属污染亦有较好的缓冲能力。
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| 关 键 词： | 凹凸棒复合滤料 生物过滤 NH4+-N 性能研究 |
The Removal of NH+4 -N by Biofiltration Using Attapulgite Composite Filter |
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| Authors: | LU Xia WANG Zheng TIAN Longjie MA Lei YANG Kaicheng LIU Lu SHEN Mingyang SUN Hai |
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| Institution: | LU Xia1,WANG Zheng1,TIAN Longjie1,MA Lei1,YANG Kaicheng2,LIU Lu2,SHEN Mingyang1,SUN Hai1(1.School of Civil Engineering,Nanjing Forestry University,Nanjing 210037,China,2.South College,China) |
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| Abstract: | We use attapulgite composite filter partially instead of quartz sand with its good absorption and biofilm performance to enhance normal filter.The experimental results show that reducing the filtration rate could increase the removal rate of biological filtration to NH+4-N,and the best filtration velocity is 4 m/h.The higher the temperature is,the higher the removal rate is.But the low temperature could maintain the removal rate of biological filtration to NH+4-N.The higher the COD concentration of raw wate... |
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| Keywords: | attapulgite composite filter biofiltration NH 4-N performance study |
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