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    王建龙, 彭永臻, 王淑莹, 高永青, 刘莹. 复合生物反应器亚硝酸型同步硝化反硝化[J]. 北京工业大学学报, 2007, 33(12): 1310-1314.
    引用本文: 王建龙, 彭永臻, 王淑莹, 高永青, 刘莹. 复合生物反应器亚硝酸型同步硝化反硝化[J]. 北京工业大学学报, 2007, 33(12): 1310-1314.
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    WANG Jian-long, PENG Yong-zhen, WANG Shu-ying, GAO Yong-qing, LIU Ying. Simultaneous Nitrification and Denitrification via Nitrite in a Sequence Hybrid Biological Reactor[J]. Journal of Beijing University of Technology, 2007, 33(12): 1310-1314.
    Citation: WANG Jian-long, PENG Yong-zhen, WANG Shu-ying, GAO Yong-qing, LIU Ying. Simultaneous Nitrification and Denitrification via Nitrite in a Sequence Hybrid Biological Reactor[J]. Journal of Beijing University of Technology, 2007, 33(12): 1310-1314.
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    复合生物反应器亚硝酸型同步硝化反硝化

    Simultaneous Nitrification and Denitrification via Nitrite in a Sequence Hybrid Biological Reactor

      摘要
    • 摘要: 以实际生活污水为对象,利用有效容积为12L的间歇式复合生物反应器(填料体积填充比为30%),通过控制ρ(DO)稳定实现了亚硝酸型同步硝化反硝化脱氮.试验结果表明,在同步硝化反硝化条件下,随着ρ(DO)的升高,亚硝化率逐渐降低,总氮去除率也呈下降趋势.曝气结束,ρ(DO)>4 mg/L时,系统的亚硝化率和总氮去除率均小于50%;当ρ(DO)为2 mg/L,温度维持在(28±1)℃,硝化过程中亚硝化率始终维持在85%以上,ρ(NH4+ -N)去除率大于98%,总氮去除率在75%左右.因此,在试验条件下,只要控制曝气量,使得曝气结束时反应器内ρ(DO)为2 mg/L,就可实现稳定的亚硝酸型同步硝化反硝化生物脱氮.

       

      Abstract: Hybrid biological reactor (HBR) was operated in a sequence,which available capacity was 12 L (filled media 30 %,υ/υ),simultaneous nitrification and denitrifieation (SND) via nitrite were achieved in a single reactor by controllingρ(DO) (at the end of the aeration period) concentration.The result showed that:with the increase ofρ(DO),the rate of the ρ(NO2- -N)/ρ(NOx- -N) and the removal efficiency of TN were decreased.When theρ(DO)>4 mg/L the rate of theρ(NO2- -N)/ρ(NOx- -N) and the removal effi- ciency ofρ(TN) were less than 50%.The rate of theρ(NO2- -N)/ρ(NOx- -N) above 85%,the removal efficiency ofρ(NH4+ -N) was over 98%,and the removal efficiency ofρ(TN) was about 7596,by control- lingρ(DO) around 2 mg/L,and temperature at (28±1)℃.In conclusion,stable nitrogen removal from wastewater by SND via nitrite at normal temperature could be achieved so long asρ(DO) was controlled at 2 mg/L.

       

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