AO生物除磷工艺丝状菌膨胀的控制杨宏

A/O杨　宏,姚　乾,黄春雷,邓建诚,张静慧,张　杰(,　100124)　:A/O,COD(NCOD)、(DO)S2-,A/O,.:A/ONCOD,,COD,;NCOD,,.:;A/O;;;;:X703:A:0254-0037(2009)12-1663-07:2008-01-09.:“”.:　(1963—),,,.　　A/O,,、.A/O,Spector1975,A/O、,,[1-2].,A/O,[3].,A/O,,[4],.,,(、(DO)、(NP)、pH、COD[5-7]),,2———NCODDO,A/O.1　1.1　　　,,NH+4-NS2-,ρ(CODCr)/ρ(NH+4-N)3.5～6.0,,1.1　Table1　Componentsofwastewatermg/Lρ(CODCr)ρ(TP)ρ(NH+4-N)ρ(NO-3-N)ρ(SO2-4)ρ(S2-)280～4807.0～10.280～900～0.51.6～3.7912.96～15.291.2　A/O,1.3512200912JOURNALOFBEIJINGUNIVERSITYOFTECHNOLOGYVol.35No.12Dec.20091　Fig.1　Schematicdiagramofexperimentalprocess,××=2.0m×0.6m×1.0m,,,.,,PVC.WTWIQSensorNetSystem2020,DO.1.3　5B-3BCODρ(CODCr);ρ(NH+4-N);ρ(NO-3-N);ρ(TP);ρ(S2-);ρ(SO2-4);ROYCE711-71ρ(MLSS);WTWIQSensorNetSystem2020ρ(DO);ThermoOrion868pHpH;LeicaDMIL;1000mL30min,SV;SVρ(MLSS)SVI,;MPN[8].2　NCOD(COD)DOA/O,.2.1　NCODNCOD.,NCOD、,.NCOD,,[9].,Palm[10]1980,ρ(DO)0.1～6.0mg/L,,;,,NCOD0.05kg,NCOD0.5kg[9];Pipes32,NCOD0.25～0.45kg,SVI[9];Chao[11],NCOD0.6～1.3kg1.8kg.,NCOD,.2.1.1　A/O,NCOD1664　　　　　　　2009NCOD=QSaX1V1+X2V2(1),NCODCOD(kg);Q(m3/d);Saρ(CODCr)(mg/L);X1,ρ(MLSS),(mg/L);V1(m3);X2,ρ(MLSS),(mg/L);V2(m3).NCOD0.6kg,[9-11],NCOD0.35kg,ρ(DO)3.0～4.0mg/L.:(hydroliretentiontime,HRT)2.0h;HRT4.0h.,,SVI.SVI2.,A/ONCODDO,SVI.14d,SVI300mL/g,SVI,SVI300mL/g(150mL/g),.,,.,(3500～4000mg/L),4000mg/L,COD,ρ(CODCr)50mg/L,TP,ρ(TP)1.0mg/L.,(100)3.2　NCOD,SVIFig.2　FluctuationofSVIversusrunningtimewhenthesludgeloadingwasnotchanged3　Fig.3　Microscopepictureofactivatedsludgezoogloewhensludgefilamentousbulkingwascontrolled　2.1.2　NCOD,NCOD.NCOD4　SVINCODFig.4　ThecorrelationbetweenSVIandsludgeloadings,,:1)ρ(DO)3.0～4.0mg/L;2)ρ(MLSS)2000mg/L;3),NCOD,2d.SVINCOD4.,、2,,,,[12].:DOρ(MLSS),NCOD0.15～0.5kg,,NCOD0.15kg,,SVI,300mL/g,,,5(a);NCOD0.5kg,,5(b);NCOD0.55kg,,,SVI,,,5(c).A/O,A/O1665　12　,:A/O,,,,.,.A/ONCOD0.15kg,NCOD0.66kg,,ρ(CODCr)30mg/L,.,,,,.NCOD0.55kg,NCOD2.4kg,,ρ(CODCr)80mg/L,,,DO,,,.5　NCODFig.5　Microscopepicturesofactivatedsludgezoogloeatdifferentsludgeloadings　2.2　DODO,ρ(DO)[13].ρ(DO)[14].(sphaerotilusnatans),ρ(DO),[15].NCOD0.15kg0.55kg,ρ(DO),DO,ρ(DO)0.5～3.5mg/L.DO,NCOD,ρ(MLSS)2000mg/L.2.2.1　NCODDO,NCOD0.15kg,ρ(DO),,.,ρ(DO)[14],ρ(DO)0.5mg/L,ρ(DO),ρ(DO),ρ(DO)[15].NCODSVIρ(DO)6.2.2.2　NCODDO,,NCOD0.55kg,DO,,SVIρ(DO).NCODρ(DO):[15],ρ(DO)NCOD,,.,,DO,,ρ(DO),[12].SVIρ(DO)7.1666　　　　　　　20096　NCOD,SVIρ(DO)Fig.6　ThecorrelationbetweenSVIandρ(DO)whensludgeloadingwaslow7　NCOD,SVIρ(DO)Fig.7　ThecorrelationbetweenSVIandρ(DO)whensludgeloadingwashigh　3　NCODρ(DO),,SVI300mL/g,NCODDO.A/O/,.,(sulfate-reducingbacteria,SRB)(sulfide-oxidingbacteria,SOB),.、,.2,,[16],021N[17].ρ(S2-)15mg/L,ρ(SO2-4)2mg/L,ρ(SO2-4)47.23mg/L,.S2-,[Zn(AC)2](S2-),S2-,Zn2+S2-Zn2++S2-※ZnS↑(2),S2-,.,,:1)HRT2.0h,HRT4.0h;2)NCOD0.4kg;3)ρ(DO)2.5mg/L;4)ρ(MLSS)2000mg/L.8　Δρ(SO2-4)SVIFig.8　FluctuationofΔρ(SO2-4)andSVIversustimeduringtheprocessofaddingZn(Ac)2ρ(SO2-4),S2-,ρ(SO2-4)Δρ(SO2-4)SVIS2-,8.,Δρ(SO2-4),SVIΔρ(SO2-4),8,Δρ(SO2-4)(7.16mg/L),SVI(132.85mL/g),(SVI≤150mL/g).,,Δρ(SO2-4),,SVI.SOBSRB,SRBSOB17/mL、4000/mL;10,SVI148mL/g,SRBSOB1.4×105/mL、1667　12　,:A/O200/mL,SRBSOB,.ρ(S2-)SRB,S2-,SO2-4(ρ(SO2-4)30mg/L,ρ(SO2-4)5mg/L),,SRB,SRB;SOB,,(,,),S2-,SOB,.,,,,,,,.,S2-SO2-4,,,.4　1)A/ONCOD,NCOD,.2)A/ONCOD,,ρ(DO),.3)A/O,,,,.:[1],.[M].:,2005:242-247.[2],.[J].,2005(1):37-38.LIGen-dong,DIAOShu-shen.Discussofbiologicaldephosphorizationtechnologyinwastewater[J].EnvironmentalTechnology,2005(1):37-38.(inChinese)[3],,.[J].,2003,29(12):32-34.WUFan-song,PENGYong-zhen,WANGWei-bin.PandNremovalsandbio-selector[J].Water&WastewaterEngineering,2003,29(12):32-34.(inChinese)[4],.[J].,2006,30(2):96-97.WANGLi,YANLei.Reasonofsludgebulkinginactivatedsludgeprocessoforbansewageanditscontrol[J].HeilongjiangEnvironmentalJournal,2006,30(2):96-97.(inChinese)[5],,,.[J].,2003,29(7):16-17.ZOUXiao-rong,LIHong-min,LIANGZhong-hua,etal.Controlexamplesofsludgebulking[J].Water&WastewaterEngineering,2003,29(7):16-17.(inChinese)[6],,,.[J].,2003,29(3):159-162.GAOChun-di,PENGYong-zhen,PENGFeng,etal.Filamentousbulkingcausedbynutrientdeficiencyandbulkingcontrol[J].TechnologyofWaterTreatment,2003,29(3):159-162.(inChinese)[7].[J].,1994,16(1):12-15.LIUZhi-hui.EffectsofC,N,Pratioonzoogloeaandsludgebulking[J].ChongqingEnvironmentalScience,1994,16(1):12-15.(inChinese)[8],,.[M].:,2002:232-241.[9],,,.SBR[J].,1999,15(6):11-13.1668　　　　　　　2009ZHOULi,PENGYong-zhen,GAOChun-di,etal.InfluenceofsludgeloadonfilamentoussludgebulkinginSBRprocess[J].ChinaWater&Wastewater,1999,15(6):11-13.(inChinese)[10]PALMJC,JEKINSD,PARKERDS.Relationshipbetweenorganicloading,dissolvedoxygenconcentrationandsludgesettleability[J].WPCF,1980,52(10):2484-2506.[11]CHAOAC,KEINATHTM.Influenceofprocessloadingindensityonsludgeclarificationandthickeningcharacteristics[J].WaterResearch,1979,13:1213-1223.[12],.[J].,2005,15(18):189-190.WANGYu-guang,LIYa-xin.Thetheoryanddesigncalculationofthebio-selector[J].Sci-TechInformationDevelopment&Economy,2005,15(18):189-190.(inChinese)[13],.[J].,2006,23(3):126-128.LIQiong,WANGYan-bo.Thecontroloffilamentousbulking[J].JournalofPingyuanUniversity,2006,23(3):126-128.(inChinese)[14]TAKCSI,