序批式曝气生物滤池处理生活污水的中试研究

Pilot Experiment for Treatment of Domestic Wastewater Using BAF

报道了沸石为填料的序批式曝气生物滤池处理生活污水的中试实验,研究了曝气时间、曝气量和生活污水浓度对处理效果的影响。结果表明,沸石作曝气生物滤池的填料效果较好。曝气2h后,即可达到很好的去除效果,污水进水COD和BOD5浓度分别为300～800mg/L和170～400mg/L时,去除率分别达到90%～70%和90%～88%。进水COD浓度分别为312.6mg/L和530.6mg/L,曝气量0.6m3/h,处理2h后出水COD浓度分别为30.63mg/L和103.92mg/L,去除率>90%,出水达到污水处理二级排放标准。因此,以沸石为填料的序批式曝气生物滤池是一种高效、低耗、具有较好应用前景的单体生活污水处理设备。

This paper reports on a pilot-scale experimental biological aerobic filter (BAF) operated in sequencing batch mode for treating sewage. The BAF features using natural zeolite as bio-film media, and when operated in optimum condition, its removal of both COD, BOD5 attains more than 90%.