循环塔式生物滤池处理高速路径流的性能研究  

Performance comparision of bio-filter wih different medium in the treatment of urban road

作　　者：张强[1] 何瑞峰[1] 李景中[1] 

机构地区：[1]西藏自治区疾病预防控制中心,西藏拉萨850000

出　　处：《中国卫生工程学》2017年第6期703-707,共5页Chinese Journal of Public Health Engineering

摘　　要：目的比较不同填料滤池对径流污染物的去除性能以及循环操作对其影响。方法将以木片、花盆石、人造纤维及火山岩为填料的4组塔式生物滤池配置循环装置,应用于处理高速路地表径流。结果各种填料的生物滤池对TSS的平均去除率均达到85%以上;以木片为填料的滤池对COD、TN的去除效率在4组滤池中均最低,分别为24.4%、15.5%;火山岩填料滤池对TP的去除率最低,为16.6%,另外3种填料的滤池对TP的去除率在51.5%~80.3%之间。结论木片组对径流中TP、COD的去除率以及火山岩组对TP的去除率随着径流水体在滤池中循环次数的增加有明显降低;花盆石组和人造纤维组受循环操作影响不明显。Objective To compared the performance of these filters with different medium and the affect of circulation operations.Methods To configuration recycle device on four groups bio-filter of respective filled with the wood,flower stone,man-made fibers and volcano rock,they were applied to treatment highway runoff. Results The average removal rate of TSS of four groups bio-filter was reached 85% or more; The respectively removal efficiency of COD,TN of the biofilter with wood chips media were 24.4% and 15.5%,was the lowest in the four groups bio-filter; The TP removal rate of volcano media bio-filter was 16.6%,which was lowest,the removal rate of TP of other three kinds of filters was 51.5%-80.3%.Conclusion The removal rate of COD,TP in runoff of wood group bio-filter and the removal rate of TP in volcanic rocks group bio-filter with the times increase of runoff recycle in the bio-filter are obvious lower; the affection of circulation operation on flower stone group bio-filter and man-made fiber group bio-filter are not obviously.

关 键 词：塔式生物滤池 路面径流 填料 循环 

分 类 号：R135[医药卫生—劳动卫生]