Aiming at the poor effect of amino nitrogen degradation in conventional refinery oil sewage treatment, the secondary biochemical test was carried with biological aeration filter pool.
针对炼油厂含油废水的常规生化处理工艺对氨氮的降解效果较差，采用曝气生物滤池作为二级生化进行试验研究。
The test for SBR indicated that, the emission of gaseous sulfide happens in the anaerobic stage and initial stage of aeration.
试验结果表明：在SBR工艺中，硫化物的逸出主要发生在厌氧阶段以及曝气的初期。
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