多点进水的倒置AAO工艺处理低碳源城市合流污水  

Study on Parted Infall Reversed AAO Process for Treatment of Municipal Wastewater with Low Carbon Source

作　　者：张硕[1] 邹伟国[1] 

机构地区：[1]上海市政工程设计研究总院(集团)有限公司,上海200092

出　　处：《环境科技》2014年第1期36-39,共4页Environmental Science and Technology

基　　金：国家水体污染控制与治理科技重大专项(2013ZX07314003);上海市国际科技合作基金资助项目(11230705100)

摘　　要：以多点进水倒置AAO工艺处理低碳源城市合流污水,考察处理效果,并选择最佳工况和工艺参数。结果表明:脱氮除磷效果较好,适合低碳源的城市污水处理;污泥回流比和内回流比不宜过大;出水NH3-N,TN,TP,SS和CODCr均满足GB 18918—2002《城镇污水处理厂污染物排放标准》一级(B)排放标准,且稳定可靠;曝气区ρ(MLSS)约3.0 mg/L,SVI在100 mL/g左右,污泥沉降性能较好。Parted infall reversed AAO processes were applied to treat municipal wastewater with low carbon contents.Removal performance was investigated and the desirable operation conditions were determined. The results indicated thatreversed AAO process with influent distribution is recommended by which nitrogen and phosphorus can be removed more.The large returned ratios of sludge and the mixed liquid are not advisable. NH3-N、TN、TP、SS and CODcr in effluent canmeet the required emission limits of the first class in Discharge standard of pollutants for municipal wastewater treatmentplant （GB 18918-2002）. MLSS is about 3.0mg/L and SVI is 100 mL/g with effective settlement feature of the sludge.

关 键 词：倒置AAO工艺 脱氮除磷 低碳源污水 多点进水 

分 类 号：X7[环境科学与工程—环境工程]