氨氮与亚硝酸盐比对推流式ANAMMOX反应器影响研究

进水基质中NH3-N与NO2--N比例是影响推流式ANAMMOX反应器性能的重要参数。该比例与NH3-N、NO2--N、TN的去除率以及NH3-N与NO2--N的反应比例等参数呈良好的相关性。在同一进水TN负荷条件下,存在一个最佳的进水比例,使TN去除率达到最大。NH3-N和NO2--N的反应比例随着进水基质比例的变化而变化。在反应器中发生的ANAMMOX反应可能有多种含氮的产物形式(不仅是N2一种)。进水基质比例的变化可能会导致ANAMMOX反应复杂化,多种反应途径同时并存。

Research on the effect of influent substrate ratio of ammonia to nitrite on the plug-flow ANAMMOX reactor

The Influent substrate ratio of ammonia nitrogen to nitrite nitrogen is a major controlling parameter of the plug-flow ANAMMOX reactor. This ratio shows good relationships with removal efficiencies of ammonia, nitrite and total nitrogen as well as the reaction substrate ratio of ammonia and nitrite. Under a constant influent total nitrogen load, there is an optimal influent substrate ration for the reactor to reach its maximum total nitrogen removal efficiency. The substrate reaction ratio varied with the influent substrate ratio. It is possible for multiple sorts of nitrogen compound (not only N_2) produced in the plug-flow reactors .The influent substrate ratio variation may leads to the complexity and multiple metabolic pathway of ANAMMOX reaction.