扩展流好氧滤池的复合脱氮特性_陈秀荣

扩展流好氧滤池的复合脱氮特性陈秀荣1,　冀滨弘2,　张　杰3(1.同济大学环境科学与工程学院,上海200092;2.深圳市水务局,广东深圳518030;3.哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090)　　摘　要:　为实现高效低耗脱氮,对扩展流好氧滤池的除碳、脱氮特性进行了研究,结果表明滤层内存在复合脱氮过程,相应的系统环境条件:DO为1.5～2.5mg/L、运行周期为10d左右、滤层内COD≤25mg/L、生物膜结构稳定,此时脱氮过程以异养反硝化和厌氧氨氧化为主,且两种作用在竞争中达到平衡。　　关键词:　扩展流好氧滤池;　复合脱氮;　厌氧氨氧化中图分类号:X703.1　　文献标识码:A　　文章编号:1000-4602(2005)03-0017-05CharacteristicsofCombinedRemovalofNitrogenbyExpandingFlowAerobicFilterCHENXiu-rong1,　JIBin-hong2,　ZHANGJie3(1.SchoolofEnvironmentalScienceandEngineering,TongjiUniversity,Shanghai200092,China;2.ShenzhenWaterResourceBureau,Shenzhen518030,China;3.SchoolofMunic-ipalandEnvironmentalEngineering,HarbinInstituteofTechnology,Harbin150090,China)　　Abstract:　Inordertorealizeefficientremovalofnitrogenwithlowenergy,thecharacteristicsofcarbonandnitrogenremovalinexpandingflowaerobicfilterwerestudied.Theresultshowsthatthereex-istscombinedremovalofnitrogeninfilterlayer,andtheenvironmentalconditionsinthesystemaredeter-minedasfollows:DOlevelis1.5-2.5mg/L,operationperiodisarou