移动床反应器-曝气生物滤池组合工艺处理分散式城镇污水案例分析

Case analysis on application of MBBR-BAF combined process in decentralized urban sewage

目前,对分散式城镇生活污水进行处理,提高水环境质量,缓解水资源危机受到广泛关注。采用好氧移动床反应器耦合曝气生物滤池处理南通市某城镇分散式污水,在进水NH_(3)-N、TP、COD平均浓度分别为16.75、5.4、58.8 mg/L条件下,出水浓度分别降到1.28、0.44、5.88 mg/L。该工艺系统可集成一体化装置,具有占地面积小、处理效果稳定、运行费用低和智能操作等优点,是一种可复制可推广的典型分散式城镇污水治理系统。

At present,the treatment of decentralized urban domestic sewage,the improvement of water environment quality and the alleviation of water resources crisis have been widely concerned.In this paper,an aerobic moving bed reactor coupled with biological aerated filter was used to treat domestic sewage in a village in Nantong.Under the condition that the average concentrations of NH_(3)-N,TP and COD in the influent are 16.75,5.4 and 58.8 mg/L,the effluent concentrations are reduced to 1.28,0.44 and 5.88 mg/L,respectively.The process system can be integrated into an integrated device,which has the advantages of small occupied area,stable treatment effect,low operating cost and intelligent operation.It is a typical rural decentralized sewage treatment system that can be replicated and popularized.