复合式A_O工艺好氧段动力学模型研究_孙慧丽

复合式A/O工艺好氧段动力学模型研究孙慧丽,　吕炳南,　陈志强,　姜　涛(哈尔滨工业大学城市水资源与水环境国家重点实验室,黑龙江哈尔滨150090)　　摘　要:　以复合式A/O工艺缺氧段动力学模型为基础,根据物料平衡理论、反应-扩散理论和Fick定律建立了复合式A/O工艺好氧段的底物降解和微生物增殖动力学模型,并进行了验证。结果表明,模型对好氧段出水的COD浓度和微生物增殖浓度拟合良好,偏差率始终低于20%;在进水底物充足的情况下,模型能够较好地模拟氨氮的硝化反应过程。　　关键词:　复合式A/O工艺;　好氧段;　动力学模型;　底物降解;　微生物增殖中图分类号:X703　　文献标识码:C　　文章编号:1000-4602(2009)17-0100-04StudyonKineticsModelofAerobicStageinHybridA/OProcessSUNHui-li,　LVBing-nan,　CHENZhi-qiang,　JIANGTao(StateKeyLaboratoryofUrbanWaterResourceandEnvironment,HarbinInstituteofTechnology,Harbin150090,China)　　Abstract:　BasedonkineticsmodelofanoxicstageinhybridA/Oprocess,thekineticsmodelforsubstratedegradationandmicroorganismgrowthinaerobicphaseofhybridA/Oprocesswasestablishedandverifiedaccordingtothemassbalancetheory,reaction-diffusiontheoryandFicklaw.TheresultsshowthatthemodelcoincideswellwiththeCODconcentrationandmicroorganismgrowthconcentrationintheoutflowfromtheaerobicstage,andthedeviationrateisalwaysunder20%.Asthesubstratesintheinflowaresufficient,nitrificationcanal