含油废水氨氮生物降解的试验研究

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。结果表明，处理后出水的氨氮平均质量浓度为5．0mg／L，去除率为83．4％，其它污染物，如油、酚、硫化物、COD、BOD2等也都达到国家规定的排放标准，基本上可以减轻含油废水对环境的污染；该工艺流程简单、处理时间短、出水水质好，具有广阔的应用前景。

STUDY ON AMINO NITROGEN DEGRADATION OF OILY SEWAGE

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. The research results showed that the amino nitrogen concentration of the filtrate was 5.0mg/L with a removal rate of 83.4%; and other pollutants, such as oil, phenol, sulfide, COD and BOD could reach the discharge standards, which alleviated the environmental pollution. The said process has the advantages of simple flow, short retention period, and promising effluent quality. A broad prospect of application is expected.