常温下SBBR反应器中亚硝酸型同步硝化反硝化的实现

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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72~76,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(C)(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(C)(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REALIZATIONFORSIMULTANEOUSNITRIFICATIONDENITRIFICATIONVIANITRITEINSEQUENCINGBIOFILMBATCHREACTORATNORMALTEMPERATUREZhangLiqiu1,2WeiChaohai2ZhangKefang1ZhangChaosheng1FangQian1LiShugeng2(1.SchoolofCivilEngineering,GuangzhouUniversity,Guangzhou510006,China;2.CollegeofEnvironmentalScienceandEngineering,SouthChinaUniversityofTechnology,Guangzhou510006,China)Abstract:Simultiniousnitrificationdenitrificationvianitritewassteadilyrealizedinsequencingbiofilmbatchreactor(SBBR)designedindependentlywithurbansewageinsouthChinaatnormaltemperature(2527)andpH:7276ofcontrollinglowoxygen.TheeffectofCNratioonSNDwasexamined.TheresultsindicatedthatCNratiorealizingSNDinSBBRwithurbansewagewas58.Nitritenitrogenaccumulatedratewasover85%andTNremovalefficiencyof80%couldbeachieved.Keywords:simultaneousnitrificationdenitrificationvianitrite;SBBR;CNratio;nitritenitrogenaccumulatedrate*(50878058,50278036);(8151009101000015)0,,,NO-2-NNO-3-NNH+4-NNO-2-NN2,,,25%(),40%(),,[1],,(SND)SND,pH[2],,,[3-7],SBBRSND,[8-11],SBBRSND(SBBR),SBBRSBR,,[12-13]SBBRSND4020092271;(C)(N)TN111试验装置1,,15cm,98cm,15L(15L),,,12cm1300m2m3,225%1;2;3ORP;4pH;5DO;6;7;8;9;10;11;12DO;13;14ORPpH;15;16;17;181SBBR12试验用水,NH4ClKH2PO4,:MgSO47H2OCaCl2FeSO47H2ONaHCO311mgL(COD)(TN)(NH+4-N)(NO-3-N)(NO-2-N)50~400256~3212237~290815~2001~0313生物膜的培养与驯化SBBRABB,,,30d,,;,NH+4-NCOD80%,,5h20min10min,20mm,3~4mm221SND的影响因素211SNDpH(COD)200mgL,(NH+4-N)22~29mgL,(TN)30mgL,50Lh,(DO)2~3mgL,(25~27),2,(0~25d)pH8~85,25dpH72~76SBBR55h,5h20min10min,24h2~32SND1TN;2NH+4-N;3NO-2-N;4NO-3-N2SND2,10,SBBRNO-2-N,15,NO-2-N,NO-2-N904%~95%25,pH,pH72~76,,NO-2-N,40,NO-2-N76%~92%NO-2-N,TN,NO-2-N,;NO-2-N,(pH72~76)SBBRNO-2-N,TN66%~79%,SBBRSND:a.,DO,,4120092271,DO[14];,,,SNDb.pH80~8572~76,pH,,,,SNDpH(80~85),SND[14-15]212SBBRCOD355COD3,COD50min,75min20mgL4h,COD,,,,NH+4-N300min,;TN,SNDNO-2-N75minNO-3-N,NO-3-N,,,TNSND1TN;2NH+4-N;3NO-2-N;4NO-3-N;5COD3SBBRCOD(55)213(C)(N)SNDSND,(COD)(TN)SND,CODCOD3,150~250mgL((C)(N)5~8),(COD)50~100mgL((C)(N)2~4)300~400mgL((C)(N)10~13),(C)(N)NO-2-NTN4(a)NO-x-NNO-2-N(b)NH+4-NTNTN1TN;2NH+4-N;3NO-2-N;4NO-3-N;5TN;6NO-2-N4(C)(N)4,(C)(N)=5~810,NO-2-N05~6mgL,NO-2-N,85%~100%,(TN)5mgL,TN80%~85%;(C)(N)=2~48,NO-2-N,7~12mgL,NO-2-N95%,(TN)10mgL,TN60%~75%;(C)(N)=10~1313,NO-2-N,1mgL,NO-3-N,NO-2-N,70%,(TN)5~17mgL,NH+4-N,NH+4-N,TN,55%(C)(N)SNDTN:(C)(N)2~4,COD,,1gNO-2-N153g[16],NH+4-N,4220092271,,TN(C)(N)5~8(C)(N)10~13,,,,,[17],SND,(25~27),pH72~76,(TN)30mgL,(C)(N)5~8SND22SBBR系统的生物膜扫描电镜分析5SBBR(a)(b)5SBBR5,,,,;,,,,,,,,,,,,SBBRSND31)SBBR(C)(N)SND,(C)(N)5~8,:25~27pH(72~76),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,GonzalezF,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)4320092271,3~5,60~70,,(),,,,1~2,30cm,5~6,,,,,,,22,,4,,,,,21,,,,,;,,,,,,,[1],.[M].:,2001.[2].[M].:.2000.[3].[J].,2006,22(6):1-3.[4],.[M].:,1998.6503021734022008-07-28(43)[15],,,.[J].,2006,27(12):2472-2476.[16],.[M].:,1998.[17],,.CODDO[J].,2004,10(3):366-369.5100062008-03-176520092271

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