空床停留时间对生物活性滤池运行效果的影响研究  

The Effect of EBCT on Biologically Enhanced Activated Filter

作　　者：吴文静[1] 花日茂[1] 徐微[1] 

机构地区：[1]安徽农业大学资源与环境学院,安徽合肥230036

出　　处：《黄山学院学报》2011年第3期58-60,共3页Journal of Huangshan University

摘　　要：在滤层厚度等条件一定的情况下,研究了空床停留时间(EBCT)对微量有机污染物,氨氮及亚硝酸盐氮去除效果的影响。结果表明随着EBCT的增加污染物质去除率有所提高,但EBCT大于15min以后,去除率增加不显著。实验条件下,最佳EBCT为15min,该EBCT下出水CODMn、UV254、氨氮、亚硝酸盐氮、去除率分别达到32.2%、21.2%、83.2%、97.3%。The thesis analyzes the ettect ot EBCT on the removat of orgamc compountts, ammonianitrogen and nitrite-nitrogen based on the same thickness of filter layer. The results show that the average removal rates of pollutant grow with the increase of EBCT, however, the affect trails off when EBCT exceeds 15mins. Under the optimal EBCT of 15min, the removal rates of CODM, UV254, ammonia-nitrogen and nitrite-nitrogen are 32.2%, 21.2%, 83.2% and 97.3% separately.

关 键 词：空床停留时间 生物活性滤池 有机物 氨氮 亚硝酸盐氮 

分 类 号：TU991.2[建筑科学—市政工程]