A/B活性污泥法工艺二级生化降解研究

Improving A/B Process of Secondary Biochemical Study on Degradation Rate of COD

为解决炼油污水A/B工艺运行中存在抗冲击能力差、污染物的可生化性低、二级沉淀池出水COD偏高、推流曝气池COD回升等问题,通过采取提高二级生化池的污泥负荷、调整一级生化池运行方式和加强操作管理等措施,最终使二级生化降解率大为提高。

The production waste water treating process A/B has some problems in operation,for instance,low stability for resisting operation fluctuating,low ability for biological dealing,COD value of water outlet of the secondary settling pit is rather high and the COD value in aeration pit rises back.But when the running mode of the aeration pit is changed to non-oxygen from containing oxygen,the effect of the secondary stage biological dealing is improved.