生物滤床对净化槽处理生活污水水质的影响

构建了适合于家庭分散式小型多功能一体化生活污水净化槽,通过逐步在净化槽内添加好氧、厌氧生物滤床,测定了各区COD和氨氮的变化,研究了生物滤床对净化槽污水净化效果的影响。实验结果表明:随着净化槽各区生物滤床的加入,抗冲击性能逐步增强,处理效果明显提高,当各区都加入填料且运行稳定时,出水ρ(COD)和ρ(氨氮)的平均值分别为37.8 mg/L和9.64 mg/L,优于国家一级排放标准。

INFLUENCE OF BIO-FILTER BED ON DOMESTIC SEWAGE TREATMENT IN PURIFYING TANK

A compact purifying tank process was developed being suit for treatment of the domestic sewage.The influence of domestic sewage treatment in the different zones of the domestic sewage purifying tank is studied by putting bio-filter bed into each zone step by step.Stable effluent quality and good resistance to shock-loading are showed from the purifying tank as the bio-filter beds are added in the aerobic zone and two anaerobic zones successively,which achieves better effect of treatment.The average effluent value of COD and NH3-N are 37.8 mg /L and 9.64 mg /L,respectively,which is better than the national primary standard.