包埋菌处理微污染水的比较试验

THE COMPARATIVE TEST OF TREATMENT OF SLIGHTLY POLLUTED RAW WATER BY IMMOBILIZED NITROBACTERIA

采用包埋曝气流化床与陶粒曝气生物滤池对相同微污染源水进行处理,比较二者在出水氨氮、亚硝酸氮、CODMn、浊度的差异。结果表明,虽然陶粒曝气生物滤池的去除效果要好于包埋曝气流化床,但是包埋的出水效果较好,而且不需要反冲洗,一旦激活后便运行稳定。包埋菌固化技术应用在微污染水处理方面具有较大潜力。

A slightly polluted raw water was treated separately by immobilized nitrobacteria pellets in airlift loop reactor and bio-ceramicite reactor.It was compared the difference of their effluent in NH^+_4-N,NO^-_2N,COD_Mn and turbidity.The result showed that the bio-ceramicite reactor's removal effect was better than that of immobilized nitrobacteria pellets in airlift loop reactor,the difference was very small.Further more,the immobilized nitrobacteria pellets in airlift loop reactor didn't need to be back washed and could run smoothly once it was activated.Immobilized nitrobacteria in the treatment of slightly polluted raw water has great potential.