硝化、反硝化的计算

硝化、反硝化的计算分段进水A/O脱氮工艺反硝化速率的测定王卿卿1，王社平1、2，惠灵灵1，金尚勇1（1西安建筑科技大学环境与市政工程学院，陕西西安，710055；2.西安市市政设计研究院，陕西西安，710068）摘要:采用间歇式反应器对分段进水A/O脱氮工艺中试装置中活性污泥的反硝化速率进行了测定，结果表明：反硝化过程存在三个速率明显不同的阶段，且随着反应时间的延长，反硝化速率逐渐降低。根据实验结果提出了城市污水厂缺氧选择池和生化反应池缺氧区设计计算时反硝化速率、水力停留时间的参考值。关键词：城市污水；反硝化速率；分段进水A/O脱氮工艺TheDeterminationofDenitrificationRateofStep-feedA/ONitrogenRemovalProcessWangQingqing1,WangSheping1,2,HuiLingling1,JinShangyong1(1.SchoolofEnvironmentalandmunicipalEngineering,Xi,anUniversityofArchitecture&Technology,ShanxiXi,an,7100552.Xi,anMunicipalEngineeringDesignandResearchInstitution,ShanxiXi,an,710068)Abstract:Thedenitrificationrateisdeterminedinbatchreactor,theresultsindicatedthattherearethreeobviousdifferentdenitrificationratesstagesinthedenitrificationprocess,andwiththereactiontimeprolonging,thedenitrificationratedeclinedgradually.Accordingtotheexperimentalresults,thereferencevalueofthedenitrificationrateandhydraulicretentiontime(HRT)aresuggested,whichisusedindesigningandcalculatingtheanoxicselectingtankandthe