SBBR*张立秋1,2 韦朝海2 张可方1 张朝升1 方 茜1 李淑更2(1.,510006;2.,510006):采用自主设计的序批式生物膜反应器(SBBR)处理南方地区城市污水,在常温(25~27℃)条件下,pH值7.2~7.6,通过恒定低曝气量实现了稳定的亚硝酸型同步硝化反硝化(SND)。试验还考察了ρ(C)ρ(N)对SBBR系统SND的影响。结果表明:在SBBR反应器中处理城市污水实现SND的较为适合的ρ(C)ρ(N)在5~8,亚硝酸氮积累率在85%以上,TN去除率可以达到80%以上。:亚硝酸型同步硝化反硝化(SND);SBBR;CN;亚硝酸氮积累率REALIZATIONFORSIMULTANEOUSNITRIFICATIONDENITRIFICATIONVIANITRITEINSEQUENCINGBIOFILMBATCHREACTORATNORMALTEMPERATUREZhangLiqiu1,2 WeiChaohai2 ZhangKefang1 ZhangChaosheng1 FangQian1 LiShugeng2(1.SchoolofCivilEngineering,GuangzhouUniversity,Guangzhou510006,China;2.CollegeofEnvironmentalScienceandEngineering,SouthChinaUniversityofTechnology,Guangzhou510006,China)Abstract:Simultiniousnitrificationdenitrificationvianitritewassteadilyrealizedinsequencingbiofilmbatchreactor(SBBR)designedindependentlywithurbansewageinsouthChinaatnormaltemperature(25—27℃)andpH:7.2—7.6ofcontrollinglowoxygen.TheeffectofCNratioonSNDwasexamined.TheresultsindicatedthatCNratiorealizingSNDinSBBRwithurbansewagewas5—8.Nitritenitrogenaccumulatedratewasover85%andTNremovalefficiencyof80%couldbeachieved.Keywords:simultaneousnitrificationdenitrificationvianitrite;SBBR;CNratio;nitritenitrogenaccumulatedrate *(50878058,50278036);(8151009101000015)。0 ,,。,NO-2-NNO-3-N。NH+4-N※NO-2-N※N2,。,。,25%(),40%(),,[1]。,,(SND)。SND,pH[2]。,,,。、[3-7],SBBRSND,[8-11],SBBRSND。(SBBR),SBBRSBR,、,[12-13]。SBBRSND40 20092271DOI:10.13205/j.hjgc.2009.01.015;ρ(C)ρ(N)TN。1 1.1 试验装置1,,15cm,98cm,15L(1.5L)。,、,。,12cm。1300m2m3,22.5%。1—;2—;3—ORP;4—pH;5—DO;6—;7—;8—;9—;10—;11—;12—DO;13—;14—ORP、pH;15—;16—;17—;18—。1 SBBR1.2 试验用水,NH4Cl、KH2PO4,:MgSO4·7H2O、CaCl2、FeSO4·7H2O、NaHCO3。1。1 mgLρ(COD)ρ(TN)ρ(NH+4-N)ρ(NO-3-N)ρ(NO-2-N)50~40025.6~32.122.37~29.081.5~2.00.1~0.31.3 生物膜的培养与驯化SBBRABB,,,30d,,;、、、,NH+4-N、COD80%,。,—5h—20min—10min,。20mm,3~4mm。2 2.1 SND的影响因素2.1.1 SNDpH。ρ(COD)200mgL,ρ(NH+4-N)22~29mgL,ρ(TN)30mgL,50Lh,ρ(DO)2~3mgL,(25~27℃),2℃,(0~25d)pH8~8.5,25dpH7.2~7.6。SBBR5.5h,—5h—20min—10min,24h2~3。2SND。1—TN;2—NH+4-N;3—NO-2-N;4—NO-3-N。2 SND2,10,SBBRNO-2-N,15,NO-2-N,NO-2-N90.4%~95%。25,pH,pH7.2~7.6,,NO-2-N,40,NO-2-N76%~92%。NO-2-N,TN,NO-2-N,;NO-2-N,(pH7.2~7.6)SBBRNO-2-N,TN66%~79%,SBBRSND。:a.,DO,,41 20092271,DO[14];,,,SND。b.pH8.0~8.57.2~7.6,pH,,,,SND。pH(8.0~8.5),。SND[14-15]。2.1.2 SBBRCOD355COD。3,COD50min,75min。20mgL。4h,COD,,,,。。NH+4-N300min,;TN,SND。NO-2-N75minNO-3-N,NO-3-N,,,TNSND。1—TN;2—NH+4-N;3—NO-2-N;4—NO-3-N;5—COD。3 SBBRCOD(55)2.1.3 ρ(C)ρ(N)SNDSND,ρ(COD)ρ(TN)SND。,COD。COD3,150~250mgL(ρ(C)ρ(N)5~8),ρ(COD)50~100mgL(ρ(C)ρ(N)2~4)300~400mgL(ρ(C)ρ(N)10~13),ρ(C)ρ(N)NO-2-N、TN。4。(a)NO-x-NNO-2-N(b)NH+4-N、TNTN1—TN;2—NH+4-N;3—NO-2-N;4—NO-3-N;5—TN;6—NO-2-N。4 ρ(C)ρ(N)4,ρ(C)ρ(N)=5~810,NO-2-N0.5~6mgL,NO-2-N,85%~100%,ρ(TN)5mgL,TN80%~85%;ρ(C)ρ(N)=2~48,NO-2-N,7~12mgL,NO-2-N95%,ρ(TN)10mgL,TN60%~75%;ρ(C)ρ(N)=10~1313,NO-2-N,1mgL,NO-3-N,NO-2-N,70%,ρ(TN)5~17mgL,NH+4-N,NH+4-N,TN,55%。ρ(C)ρ(N)、SNDTN。:ρ(C)ρ(N)2~4,COD,,1gNO-2-N1.53g[16],NH+4-N,42 20092271,,TNρ(C)ρ(N)5~8。ρ(C)ρ(N)10~13,,,,,[17],SND。,(25~27℃),pH7.2~7.6,ρ(TN)30mgL,ρ(C)ρ(N)5~8SND。2.2 SBBR系统的生物膜扫描电镜分析5SBBR。(a)(b)5 SBBR5,,,,;,,,。,,,,。,,,,。,SBBRSND。3 1)SBBRρ(C)ρ(N)SND,ρ(C)ρ(N)5~8,:25~27℃pH(7.2~7.6),85%,TN80%。2):、,,SBBRSND。[1] YooHyungseok,AhnKyu-Hong,LeeHyung-Jib,etal.Nityogenremovalfromsyntheticwastewaterbysimultaneousnitrificationanddenitrification(SND)vianitriteinanintermittentlyreactor[J].Wat.Res,1999,33(1):145-154.[2] ThirdKA,GibbsB,NewlandM,etal.Long-termaerationmanagementforimprovedN-removalviaSNDinasequencingbatchreactor[J].Wat.Res,2005(39):3523-3530.[3] ,.[J].,2007,25(1):26-29.[4] ,,,.[J].,2007,1(1):68-73.[5] ,,,.pH[J].,2007,1(12):15-19.[6] CiudadG,RubilarO,MunozP,etal.Partialnitrificationofhighammoniaconcentrationwastewaterasapartofashortcutbiologicalnitrogenremovalprocess[J].ProcessBiochemistry,2005(40):1715-1719.[7] KimWindey,IngeDeBo,WillyVerstraete.Oxygen-limitedautotrophicnitrification-denitrification(OLAND)inarotatingbiologicalcontactortreatinghigh-salinitywastewater[J].WaterResearch,2005(39):4512-4520.[8] RuizG,JeisonD,ChamyR.Nitrificationwithhighnitriteaccumulationforthetreatmentofwastewaterwithhighammoniaconcentration[J].Wat.Res,2003(37):1371-1377.[9] Mosquera-CorralA,Gonza'lezF,CamposJL,etal.Partialnitrificationinasharonreactorinthepresenceofsaltsandorganiccarbon[J].ProcessBiochemistry,2005(40):3109-3118.[10] RuizG,JeisonD,RubilarO,etal.Nitrification-denitrificationvianitriteaccumulationfornitrogenremovalfromwastewaters[J].BioresourceTechnology,2006,97:330-335.[11] ,,.[J].,2005,56(4):699-704.[12] ,,,.(SBBR)[J].,2006(4):213-219.[13] ,,,.(SBBR)[J].,2006,26(1):55-60.[14] ,,.[J].,2006,22(9):30-33.(65)43 20092271。。、、,3~5,60~70℃,,(),。,,。,1~2,30cm,5~6,。,,,,,,。2。2 ,、,、、。4 ,,,,,、、。21。,,,。,,;,,、。,,,“、、、”。,,。[1] ,.[M].:,2001.[2] .[M].:.2000.[3] .[J].,2006,22(6):1-3.[4] ,.[M].:,1998. 650302 1734022008-07-28(43)[15] ,,,.[J].,2006,27(12):2472-2476.[16] ,.[M].:,1998.[17] ,,.CODDO[J].,2004,10(3): 366-369. 510006 2008-03-1765 20092271