| 同步半硝化-厌氧氨氧化颗粒污泥工艺在低氨氮污水脱氮的应用 |
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| 引用本文： | 刘国华,范强,徐相龙,马艺鸣,王洪臣.同步半硝化-厌氧氨氧化颗粒污泥工艺在低氨氮污水脱氮的应用[J].北京工业大学学报,2015(10):1479-1484. |
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| 作者姓名： | 刘国华 范强 徐相龙 马艺鸣 王洪臣 |
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| 作者单位： | 中国人民大学 环境学院,北京,100872;中国人民大学 环境学院,北京,100872;中国人民大学 环境学院,北京,100872;中国人民大学 环境学院,北京,100872;中国人民大学 环境学院,北京,100872 |
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| 基金项目： | 中央高校基本科研业务费专项资金资助项目 |
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| 摘 要： | 为了检验同步半硝化-厌氧氨氧化颗粒污泥工艺(simultaneous partial nitritation/Anammox with granular sludge,SPNAGS)对低氨氮污水的生物脱氮效果,开展了长期的小试试验研究.结果显示,在污水氨氮浓度从200mg/L降到20~50 mg/L时,系统中的颗粒污泥发生解体,难以保持颗粒状,且污泥颜色由原来的红棕色变为灰黄色,系统仍然保持很高的氨氮去除率(95%),但总氮的去除率却逐渐降低,最后仅有20%左右,约80%的氨氮转化为硝酸盐.因此,本研究进一步证明了该工艺在应用于低氨氮浓度污水生物脱氮时,系统内亚硝酸盐氧化细菌(nitrite-oxidizing bacteria,NOB)的控制既是关键,也是挑战.
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| 关 键 词： | 一体式厌氧氨氧化 颗粒污泥 低氨氮污水 出水硝酸盐 亚硝酸盐氧化细菌(NOB) |
Application of Simultaneous Partial Nitritation/Anammox With Granular Sludge to the Treatment of Low Ammonia Concentration Wastewater |
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| Abstract: | To evaluate the performance of the simultaneous partial nitritation/Anammox with granular sludge ( SPNAGS ) process to treat low ammonia concentration wastewater, a lab-scale study was conducted. Results show that when ammonia concentration is 20~50 mg/L, granular sludge breaks up gradually and the color varies from reddish-brown to grayish yellow, although the ammonia removal rate is always higher than 95%, the total nitrogen ( TN ) removal rate is only 20% at the final phase of the experiment. 80% ammonia is converted into nitrate. Thus, the out-selection of wastewater nitrite-oxidizing bacteria ( NOB ) control is very important to the SPNAGS process to treat low ammonia concentration wastewater. |
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| Keywords: | one-step Anammox granular sludge low ammonia wastewater efficient nitrate nitrite-oxidizing bacteria ( NOB) |
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