A_O泳动床反应器脱氮性能研究_谈玲玲

A_O泳动床反应器脱氮性能研究_谈玲玲48给水排水Vol.35增刊2009A/O泳动床反应器脱氮性能研究谈玲玲1张岩1郭岩1小山登一郎2张杰1(1北京工业大学北京市水质科学与水环境恢复工程重点实验室,北京100124;2NET株式会社,日本666-0115)摘要基于A/O工艺与泳动床工艺技术的联合,开发出A/O泳动床生物膜反应器。A/O泳动床系统表现出高效去除CODCr、NH3—N和TN以及较好的抗负荷冲击能力。在HRT=12.5h,回流比为300%,进水CODCr、NH3—N平均浓度分别为343.4mg/L、94.1mg/L时,CODCr和NH3—N平均去除率分别为84.6%,86.8%;CODCr的容积负荷与去除负荷现良好的线性关系,R2=0.9704;系统在较低的C/N下,TN平均去除率为70.8%。关键词A/O泳动床脱氮HRTSTUDYONNITROGENREMOVALBYA/OSWIMMINGBEDREACTEORTanLingling1,ZhangYan1,GuoYan1,KoyamaNobuichiro2,ZhangJie1(1.KeyLaboratoryofBeijingforWaterQualityScienceandWaterEnvironmentalRecoveryEngineering,BeijingUniversityofTechnology,Beijing100124,China;2.NetworkingofEngineeringandTextileProcessing,Japan666-0115)Abstract:Anoxic/oxic(A/O)processcombinedwithswimmingbedasanoveltechnologyforwasterwatertreatmentwasdeveloped,whichwasonthebasisofA/Oprocessandswimmingbedtechnology.TheresultsdemonstratedthatA/Oswimmingbedsystemhastheperformanceofhigh-efficiencyremovalofCODCr、NH3—NandTN,aswellasresistanttoflashloading.Whenhydraulicretentionti