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ANAMMOX与反硝化协同作用及氮素负荷研究

Keywords: 厌氧氨氧化,协同作用,反硝化,ANAMMOX,UASB

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Abstract:

向成功启动并稳定运行630d后的UASB生物膜反应器系统连续添加有机物,分析其对厌氧氨氧化反应脱氮效果的影响,并进行氮素浓度负荷试验。在厌氧氨氧化反应器系统中连续投加有机COD(葡萄糖),系统运行稳定,有机COD(葡萄糖)存在对系统去除氮素能力影响不大,有机COD去除率达到92.0%,仅用23d,在同一反应器系统中成功实现了厌氧氨氧化与反硝化协同作用脱氮。氮素浓度负荷试验阶段,进水氨氮(NH+4-N)、亚硝氮(NO-2-N)以及总氮(TN)浓度负荷分别从0.063kg/(m3·d)和0.063kg/(m3·d)和0.126kg/(m3·d)提升到了0.239kg/(m3·d)、0.315kg/(m3·d)和0.554kg/(m3·d),相应去除率分别为84.0%、93.0%和85.0%,厌氧氨氧化工艺的UASB生物膜反应器对氮素浓度负荷仍有很大提升空间。

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