功能性填料曝气生物滤池应急处理雨水调蓄池污水

Emergency Treatment of Wastewater from Rainwater Storage Tank Using Functional Filler Aeration Biofilter

根据传统雨水调蓄池内的水质特征,对传统曝气生物滤池进行革新,调整了曝气生物滤池的结构,同时通过改性木屑和多孔陶粒替代内部常规使用的无机滤料。实验结果表明,水质在净化2个月后,出水口水质的COD、氨氮以及TP的去除率分别为42%、95%和54%,说明优化调整后的曝气生物滤池出水口中水质的COD、氨氮以及TP量均已达到《地表水环境质量标准》(GB 3838-2002)规定的排放标准,使用耐久性优异。

In this experiment,the structure of the traditional aeration biofilter was optimized for the water quality characteristics in the traditional stormwater storage tank,and the inorganic filter media used conventionally inside was replaced by modified wood chips and porous ceramic particles.The experimental results showed that after 2 months of water purification,the removal rate of COD,ammonia nitrogen and TP at the outlet were as high as 95%,95%and 92%,respectively.The COD,ammonia nitrogen and TP in the outlet of the modified aeration biofilter have reached the discharge standard stipulated in the《Environmental Quality Standard for Surface Water》(GB 3838-2002),and can be used for a long time.