IC反应器完全混合式活性污泥法组合工艺生物脱氮实验研究杨俊

214Vol．21No．420127JournalofHenanUniversityofUrbanConstructionJul．20122012－05－12杨俊(1987－)，男，河南驻马店人，长安大学环境科学与工程学院硕士研究生。1674－7046201204－0028－04IC+杨俊1，张俊香2(1．长安大学环境科学与工程学院，陕西西安710064;2．西安建筑科技大学，陕西西安710064)通过人工配水实验对IC(内循环厌氧)反应器+完全混合式活性污泥法组合工艺生物脱氮效果进行研究，实验过程采用连续性进水，结果表明:进水COD200～400mg/L，NH+4－N30～45mg/L，出水COD、NH+4－N浓度分别小于60mg/L和15mg/L，氨氮去除率最高达95%。IC反应器;完全混合式活性污泥法组合工艺;生物脱氮X703A1。A/O、A2/O。①②HRT③④⑤2。IC+。22．1实验设计原理IC。ICNO2－、NO－3N2N3。2．2IC反应器+完全混合式活性污泥法组合工艺IC+1。DOI:10.14140/j.cnki.hncjxb.2012.04.0051IC+。IC。。COD、。。4IC。2．3实验过程IC。COD、、。IC6L/h3h6L/h24h。。3COD200～400mg/LNH+4－N30～45mg/LIC+95%1。1IC+mg/L日期IC反应器进水硝态氮氨氮COD曝气池出水硝态氮氨氮COD去除率/%NH+4－NCOD10．20349．67240．771．95142．9480．2617．0366．6620．09633．62196．082．06924．5658．4826．9470．1730．08236．91213．281．96131．9755．0413．3874．1940．09844．49299．282．00438．4755．6813．5381．3950．08733．49317．602．00123．5954．6429．5682．7960．10149．91299．282．05636．1255．6827．6281．3970．08534．85400．000．06938．45102．4910．3274．3780．76133．49317．602．0565．2354．6484．3882．7990．74534．56300．122．0485．5652．6383．9182．46100．73234．85299．282．0285．4350．1684．4183．23110．68928．02286．222．0160．6748．5797．6083．03120．59829．13296．452．0210．7149．5897．5683．27130．59149．91312．492．0040．9452．8998．1183．07140．62845．16400．002．0180．8341．3898．11689．65150．62945．15398．762．0190．8140．8598．2089．75160．59046．00312．502．0030．9553．0098．0083．04170．60047．12301．262．0200．7051．0298．5183．06180．70149．13286．222．0150．6548．6098．6883．02190．73150．00299．562．0270．6651．1598．6882．92200．74735．05300．122．0460．7652．6397．8382．4692214IC+日期IC反应器进水硝态氮氨氮COD曝气池出水硝态氮氨氮COD去除率/%NH+4－NCOD210．76033．03316．422．0525．2253．8784．2082．97220．75835．06317．452．0535．0454．5985．6282．80230．74035．12300．012．0455．4252．5984．2882．47240．73835．17299．242．0235．3750．1284．5783．25250．69435．25294．652．0135．4048．5384．6883．52260．62838．23297．132．0190．7649．5498．0183．32270．60649．91322．512．0010．1152．8599．7783．61280．64847．16411．232．0150．1341．3599．7289．94290．65526．49254．622．0120．8345．6396．8682．07300．68928．02286．222．0160．6748．5797．6083．031、2、3。2、3COD2192550mg/L35．25mg/L0．66mg/L5．4mg/L。25d95%。37d30%。5。4IC+1COD90%95%2。30．1mg/L032012745COD90%6、、、。1．M．1999．2．J．20063110－111．3．A/O/IAT－IATJ．20063113－17．4．ICJ．20096108－110．5．ICJ．20073212120－123．ICanaerobicreactorandcompletemixingactivatedsludgeprocessforbiologicaldenitrificationofexperimentresearchYANGJun1ZHANGJun-xiang21．SchoolofEnvironmentalScienceandEngineeringChang’anUniversityXi’an710064China2．Xi’anUniversityofArchitectureandTechnologyXi’an710064ChinaAbstractAccordingtotheresearchonICinternalcirculationanaerobicreactorandcompletemixingactiva-tedsludgeprocessforbiologicaldenitrificationwhichwereconductedcontinuouslybyfeedingsyntheticwastewater．ResultsshowsthattheinletconcentrationofCODandNH+4－Nis200－400mg/Land30－45mg/Lrespectivelywhiletheeffluentoneislessthan60mg/Land15mg/Lrespectively．Theremovaleffi-ciencyofNH3－Nisashigheras95%whichprovesthatNH+4－Ncanberemovedbothgreatlyandefficient-lyintheremovalprocessandithasapromisingprospectofapplicationandspreading．KeywordsIC-reactorcompletelyhybridofactivatedsludgebiologicaldenitrificationbiologicaldenitrifica-tion(上接第27页)MutationofsinglefactorandcomplexconditionsofChitosanase-producingstrainWANGYan-jun，LIAOChun-lin(FuqingBranchofFujianNormalUniversity，Fuqing350300，China)Abstract:Inthisarticle，theChitosanaseM2wasusedasoriginalstrain，thesporesuspensionofwhichwasin-ducedbyUVmutation，NANO2mutationandthecompoundtreatmeat(UV+NaNO2)respectivelytothevitali-tyoftheChitosanaseofthepopulationisforthepurposeofAhigh-yieldingmutantwasobtainedfromalotofmutants．Thestrain’spullulanaseactivityreached8．135U/mL．A1．381increasedthantheoriginalstrain．Basedoncomparativeanalysisvalidation，compositemutationapproachisabetterwayoflookingforhighac-tivityofmutantstrains．Andasinglefactorintheultravioletmutationmethodissimpleandinstant，theen-zymesChitosanaseactivityincreasedby25．15%forcomplexmutationthantheultravioletmutation，whichis32．82%higherthanthenitricacidsodiummutationofthepopulationoftheenzymeactivity．Keywords:Chitosanase;UVmutation;NaNO2mutation;compositemutation13214IC+