| 单级SBR生物膜中全程自养脱氮的研究 |
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| 引用本文： | 廖德祥,李小明,曾光明,杨麒,杨国靖.单级SBR生物膜中全程自养脱氮的研究[J].中国环境科学,2005,25(2):0-0. |
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| 作者姓名： | 廖德祥 李小明 曾光明 杨麒 杨国靖 |
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| 作者单位： | 湖南大学环境科学与工程系,湖南,长沙,410082 |
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| 基金项目： | 国家自然科学基金资助项目(50478054);湖南省自然科学基金资助项目(WJ2002101) |
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| 摘 要： | 研究了具有全程自养脱氮作用的生物膜中无机碳源浓度、pH值、溶解氧(DO)对全程自养脱氮的影响.结果表明,当NaHCO3浓度从1.75g/L上升到2.50g/L时,反应体系中的pH值从7.6～8.0上升到8.8左右,氨氮转化率和总无机氮去除率分别急剧下降到53%和48.8%.在进水氨氮负荷为60g/(m3·d)时,最佳DO应控制在0.5～0.7mg/L,此时氨氮转化率达到90%以上.
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| 关 键 词： | 全程自养脱氮 短程硝化 厌氧氨氧化 自由氨 |
| 文章编号： | 1000-6923(2005)02-0222-04 |
| 收稿时间： | 1900-01-01; |
| 修稿时间： | 2004年8月31日 |
Studies on deammonification process in single SBR biofilm |
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| LIAO De-Xiang,LI Xiao-ming,ZENG Guang-ming,YANG Qi,YANG Guo-jing.Studies on deammonification process in single SBR biofilm[J].China Environmental Science,2005,25(2):0-0. |
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| Authors: | LIAO De-Xiang LI Xiao-ming ZENG Guang-ming YANG Qi YANG Guo-jing |
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| Institution: | LIAO De-xiang,LI Xiao-ming*,ZENG Guang-ming,YANG Qi,YANG Guo-jing |
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| Abstract: | The influence of inorganic carbon concentration, pH value and dissolved oxygen (DO) in biofilm possessing deammonification action was studied. The NaHCO3 concentration increased from 1.75g/L to 2.50g/L, the pH value in the reaction system increased from 7.6~8.0 to about 8.8, the conversion rate of ammonium nitrogen and total inorganic nitrogen removal rate all decreased dramatically to 53% and 48.8% respectively. When the ammonium-nitrogen load of input water was 60g/(m3?d), the best DO concentration should be controlled at 0.5~0.7mg/L. Under these conditions, the conversion rate of ammonium-nitrogen reached higher than 90%. |
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| Keywords: | deammonification nitritation anaerobic ammonium oxidation free ammonia |
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