在温度35℃pH值7.0左右,HRT为30 h的厌氧反应器中,研究了厌氧氨氧化与反硝化的耦合作用.进水氨氮为70～120 mg/L左右,COD为800～1200 mg/L左右条件下,将含亚硝酸盐和硝酸盐浓度人工配水按厌氧进水配比引入反应器中,氨氮、亚硝态氮进水浓度分别为75.43 mg/L、99.87 mg/L时,总氮负荷为233.82 mg/(L·d),考察不同进水配比R(0～100％)对厌氧反应器的脱氮除碳效能影响.实验结果表明,在进水配比为75％条件下,系统氨氮、亚硝态氮去除率达55.71％、63.65％,TN去除率最高达64.56％,COD去除率达80％左右.结果表明,适当的进水配比,不仅可以达到稀释厌氧进水的作用,还可以促使厌氧氨氧化与反硝化的协同脱氮除碳效果.
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