作物青贮渗出液属于高CODcr、高氨氮废水，对水环境质量影响不容忽视。本文采用沸石生物膜的方法处理奶牛养殖场玉米青贮渗出液，研究了对CODcr、氨氮的去除效果。结果表明，挂膜23d后，CODcr的去除率可以稳定在70%，氨氮去除率可以稳定在80%以上，挂膜成熟后沸石生物膜反应器对CODcr和氨氮有较好的去除效果；当气水比为2：1，水力停留时间为12h，生物膜活性达到最高，有机污染物的去除效果最好；当CODcr的质量浓度达到280mg/L时，氨氮的去除率降为32.7%，显示出有机污染物的降解好氧严重抑制了硝化细菌的生长，有机负荷对氨氮去除效果影响较大。

 In plant silage effluent, CODcr and NH4+-N are in high concentration, which has caused seriously pollution in some areas. Bio-zeolite system, removal of CODcr and NH4+-N, was selected to treat the corn silage effluent in dairy farm. The following results were obtained: beginning the biofilm,after 23th day, the removal efficiency of CODcr and NH4+-N was over 70% and 80%，which reveals the stable for the removal of CODcr and NH4+-N by bio-zeolite system after the biofilm maturation. When the gas to liquid ratio was 2:1, hydraulic retention time was 12h, the biofilm has the best of activation and the highest removal rate of organic pollutant. The removal rate of NH4+-N decreased to 32.7% when the concentration of CODcr increased to 280mg/L.The removal of NH4+-N was limited by organic load and the decrease of DO concentration, organic degradation, severely inhibited the growth of nitrifying bacteria.

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