【摘要】 采用SBR反应器,接种好氧硝化污泥,在142 d内于较高负荷下成功启动了厌氧氨氧化反应器。反应器总氮容积负荷(以N计)为0.43 kg/m3.d,总氮去除率最高达到93.3%,平均为80.5%;氨氮和亚硝酸盐氮的去除率最高达到93.9%和99.8%,平均去除率为81.2%和85.7%。在稳定运行阶段,氨氮去除量、亚硝酸盐氮去除量、硝酸盐氮生成量三者之间的比值为1∶1.38∶0.18。反应器启动过程中,出水、进水pH差值的变化趋势由负到正,然后稳定在一定范围内;且污泥性状有较大变化,污泥中微生物所占比率有所提高,整个反应器中适应厌氧氨氧化运行方式的菌种增殖较快。更多还原

【Abstract】 The anammox bioreactor could be started up successfully within 142 d inoculated with aerobic nitrifying sludge in SBR.The volumetric total nitrogen loading was 0.43 kg/m³·d,and the maximal removal efficiencies of total nitrogen,NH⁺₄-N and NO^-₂-N were 93.3%,93.9% and 99.8%,respectively.The average removal efficiencies of total nitrogen,NH⁺₄N and NO^-₂-N were all above 80%.At the stabilized operation period,the ratio of NH⁺₄-N consumed:NO^-₂-N consumed:NO^-₃-N produced was 1∶1.38∶0.18.The variational trend of pH value difference of the effluent and influent was from the negative to the positive,and then tended to be some range with the advance of the start-up process.The characteristics of the sludge changed obviously,and the bacteria increased rapidly accommodated to the operation mode of ANAMMOX in SBR.更多还原