【摘要】 考察了以丝瓜络为填料的反硝化生物滤池对生活污水中TN和TP等污染负荷去除的效果。结果表明,通过间歇运行的方式,在不加碳源的条件下,水力停留时间为24 h,各污染物的去除效果较好,对NO₃^--N、NO₂^--N、NH₃-N、TN、TP和COD平均去除率分别为95%、92%、30%、75%、25%和50%,出水总氮含量低于城镇污水处理厂一级A标准（GB 18918-2002）。通过扫描电镜对丝瓜络微观表面形貌进行观察,发现丝瓜络具有微米级的网状结构,反应后表面镶嵌有大量球形的微生物群落,且内部网壁变薄。更多还原

【Abstract】 Loofah was used as filler for a denitrification biofilter to investigate the pollutant removal efficiencies by intermission operation. The results showed that the average removal efficiencies for nitrate,nitrite,ammonia,nitrogen,TN,TP,and COD after 24 h treatment,without a carbon source,were 95%,92%,30%,25%,75%,25%,and 50%,respectively. The TN content after treatment was lower than the A-level standard( GB 18918-2002) for urban sewage treatment plants. After treatment,a large number of microorganisms were observed on the loofah surface. Furthermore,a micron grade reticular structure was found before the treatment and the loofah was thinner after the experiment.更多还原