Low Temperature Partial Nitritation/Anammox in a Moving Bed Biofilm Reactor Treating Low Strength Wastewater
Low Temperature Partial Nitritation/Anammox in a Moving Bed Biofilm Reactor Treating Low Strength Wastewater
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DOI：
10.1021/es501649m
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发表时间：
2014-08-05
影响因子：
11.4
通讯作者：
Lackner, Susanne
中科院分区：
文献类型：
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作者：
Gilbert, Eva M.;Agrawal, Shelesh;Lackner, Susanne
在气候温和的地区收集的城市废水的温度从夏季的20摄氏度左右逐渐下降到冬季的10摄氏度左右。使用具有载体材料（来自AnoxKaldnes的K3）的实验室规模移动床生物膜反应器（MBBR）来测试整个部分亚硝化/厌氧氨氧化工艺对该温度梯度的耐受性。一个合成的进水，只含有铵和没有有机碳被用来最大限度地减少反硝化作用。在20 ℃下稳定的反应器操作后，温度每月缓慢降低2 ℃，然后保持恒定在10 ℃。沿着温度降低，铵转化率从20 ℃下的平均40 g（N）m（-3）d（-1）（0.2 g（N）kg（Tss）h（-1））下降至10 ℃下的约15 g（N）m（-3）d（-1）（0.07 g（N）kg（Tss）h（-1）），同时保持流出物浓度
Municipal wastewater collected in areas with moderate climate is subjected to a gradual temperature decrease from around 20 degrees C in summer to about 10 degrees C in winter. A labscale moving bed biofilm reactor (MBBR) with carrier material (K3 from AnoxKaldnes) was used to test the tolerance of the overall partial nitritation/anammox process to this temperature gradient. A synthetic influent, containing only ammonium and no organic carbon was used to minimize denitrification effects. After stable reactor operation at 20 degrees C, the temperature was slowly reduced by 2 C per month and afterward held constant at 10 degrees C. Along the temperature decrease, the ammonium conversion dropped from an average of 40 g(N) m(-3) d(-1) (0.2 g(N) kg(Tss) h(-1)) at 20 degrees C to about 15 g(N) m(-3) d(-1) (0.07 g(N) kg(Tss) h(-1)) at 10 degrees C, while the effluent concentration was kept