SBR系统中脱氮途径研究戴友芝

274200512　　　　　　　　　　　　　　NaturalScienceJournalofXiangtanUniversity　　　　Vol.27No.4Dec.2005SBR戴友芝,　　刘　剑(,411105)[]　SBR.:CODN5.5～7,2.5mgL..,(SND),.　　:SBR;;;:X703　　　　　　　:A　　　　　　　:10005900(2005)04007704StudyontheApproachofRemovalofNitrogenwithSBRProcessDAIYouzhi,　　LUJian(DepartmentofEnvironmentalEngineering,XiangtanUniversity,Xiangtan411105China)【Abstract】　ThispaperstudiedtheabilityofSBR(SequencingBatchReactor)processtoremovalnitrogen.ItisrunningbestthatundertheexperimentalconditionoftheCODN5.5-7andDO2.5mgL.Thestateoftheshort-cutnitrifica-tionispertinencewiththetemperature.Theresultsshowedthattheapproachofthenitrogenremovalistheshort-cutni-trificationandthesimultaneousnitrification-denitrification.Keywords:　SBRsystem,Short-cutnitrification,simultaneousnitrification-denitrification,aerobicdenitrification:(NH+4-NO-2-NO-3)(NO-3-NO-2-N2).,,[1].:,.,(SHA-RON):(、pH、DO),(NH+4-NO-2-N2),.(ANAMMOX):,NH+4,.,,,,SBR,DO、pH,,.1.　1　SBRFig.1　Schematicdiagramoftheexperimentalsetupandcontrol1.1　SBR,300mm,800mm,50L.、,.pHDOpH.SBRl.1.2　,:20050215　　　:(20477034)　　　:(1956),,,.E-mail:[e-mail]:10.13715/j.cnki.nsjxu.2005.04.016,、、、NH4Cl、KH2PO4、CaCl2·H2O、MgSO4·7H2O、FeSO4·7H2O—,Na2CO3、NaHCO3pH.,1∶1.CODcr300～500mgL、NH3-N50～78.84mgL、NO3-N0.58mgL、NO2-N0.07mgL、400mgL、pH7.5～8.6.,()4h、()4h、1h,.COD、NH3-N、NO2-N、NO3-N,SV、SVI、MLSSMLVSS.2　CODNFig.2　EffectsoforganicloadingandCODNonammoniaremoval2　2.1　2.1.1　CODN　　CODN,2:CODcr2.95～4.84kgkgMLSS.d,CODN4.14～9.42.90%,NH3-N10mgL,—,CODN5.5～7NH3-N.2.1.2　　　(0.1m3h、0.2m3h0.3m3h)(DO),.1.1　Tab.1　VariationofthenitrificationstateondifferentDOm3·h-1mg·L-1%mgNH3-N(gMLSS.h)NO2-NNOx-N%)%0.11.5454.21368340.22.5918.5126053.90.33.5958.0234349.61,DO、,(NO2-NNOx-N).[2,3],,,,.DO2.5mgL,,.3　pHFig.3　VariationofpHinacycle2.1.3　pH　　SBR,pH.—3.,pH—[4,5].pH74%,.,pH.2.2　SBR2.2.1　　　,4、.4.78　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　20054　Fig.4　Variationofnitrateandnitritecontentwithtime　　4,(4),NO2-N,NO3-N;.—,50%[6].37d.,[2,3],,,.,,,,pH(7.5～8.6),,[1],..,,、,.5,.11～14(422425),50%,.(35℃15℃),,[1],.5　Fig.5　Effectsoftemperatureonnitritation6　Fig.6　Variationofinorganicnitrogencompoundsinacycle2.2.2　　　10—、,6:6,;,4,.89.6%96.7%;1,53.9%,.:4.9mgL,7.16%.15.49mgL,23.3%.30.4%.,(23.3%794　　　　　　　　　　　　　　SBR　　　　　　　　　　　　　　　　).,..:SBR,(SND).,.3　　a.CODN5.5～7,2.5mgL.pH,74%.b.SBR(2.5mgL)pH(7.6～8.6),;,.c.,(SND),.　　　[1]　.[M].:,1996:3.XUYa-tong.Theremovalofnitrogenandphosphorfromwasterwater[M].Shanghai:PublishingCompanyofEastChinaNormalUniversity,1996:3.[2]　ALLEMANJE.Elevatednitriteaccureneinbiologicalwastewatertreatmentsystem[J].WaterSciTech,1984,(17):409-419.[3]　HongWZhao,DonaldSMavinic,WilliamKOldham.Controllingfactorsforsimultaneousnitrificationanddenitrificationinatwo-stageintermittentaerationprocesstreatingdomesticsewage[J].Wat.Res,.1999,33(4):971-978.[4]　,,.SBR[J].,2002,18(11):13-18.GAODa-wen,PENGYong-zhen,ZHENGQing-zhu.Processcontrolofshortcutnitrification-denitrificationinsequencingbatchreactorpro-cess[J].ChinaWater&Wastewater,2002,18(11):13-18.[5]　,,.SBR[J].,2002,18(10):1-5.WANGShu-ying,ZENGWei,DONGWen-yi.StudyonshortcutnitrificationbyusingSBRprocessanditsprocesscontrol[J].ChinaWater&Wastewater,2002,18(10):1-5.[6]　,,.SMSBR[J].,2001,17(11):8-12.LIChun-jie,GENGYan,ZHOUQi.StudyontheshortcutnitrificationanddenitrificationinCokePlantWastewatertreatmentbyusingsubmergedmembranesequencingbatchreactor.Chinawater&wastewater,2001,17(11):8-12.80　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　2005