2级竹炭曝气生物滤池处理校园污水的启动性能研究

研究了上流式2级竹炭曝气生物滤池(UBAF)处理校园生活污水的启动规律。利用2级曝气生物滤池串联的方式,采用复合式接种挂膜的方法对曝气生物滤池进行挂膜启动。设计挂膜时间为31 d,探讨了挂膜过程中COD、BOD5以及NH3-N随时间的变化规律。由于竹炭本身具有一定吸附性,因此以空白试验验证其对COD的吸附效率。结果表明,在挂膜开始的第15天,COD与BOD5的去除率均达到80%以上,进一步以NH3-N含量变化研究,其去除率达到70%以上。表明此时曝气生物滤池挂膜启动成功。

THE RESEARCH ON THE START-UP OF CAMPUS SEWAGE TREATMENT WITH TWO-STAGE BAMBOO CHARCOAL BIOLOGICAL AERATED FILTER

The study focused on the start rule of the two-stage bamboo charcoal biological up-flow aerated filters in the treatment of campus domestic wastewater.Using the two levels of biological aerated filters connected in series,The compound inoculation is used to start the BAF.The design time is 31 d to accomplished the forming bio-film and discuss the removal performance of COD,BOD5 and NH3-N.Because the bamboo charcoal has certain adsorption,so do the blank test to verify the adsorption efficiency of COD.The results show that: after 15 d,the COD and BOD5 removal efficiency can reach stability above 80%.The change in the content of NH3-N with further research,the removal rate is above 70%.The result of the experiment shows that the biological film starting is successfully.