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当前位置:首页 > 商业/管理/HR > 质量控制/管理 > 常温下磷酸盐对城市污水厌氧氨氧化的影响王俊安
王俊安, 李 冬, 田智勇, 张 杰(北京工业大学水质科学与水环境恢复工程北京市重点实验室,北京100124) : 在常温条件下采用生物滤池处理城市污水,考察了磷酸盐浓度对其厌氧氨氧化(Anammox)效能的影响。结果表明,磷酸盐对Anammox存在一定的可逆性抑制作用。当进水TP10mg/L时,生物滤池中有乳白色沉积物形成,经X射线衍射晶相分析,其主要成分为MgNH4PO4·6H2O(MAP),MAP的物理阻滞作用影响了Anammox反应基质的正常传递,从而导致脱氮负荷的明显下降;通过终止投加磷酸盐、短期(2h)降低进水pH和反冲洗三个途径,可实现Anammox脱氮效能的迅速恢复。 : 城市污水; 厌氧氨氧化; 常温; 磷酸盐; 脱氮:X703 :A :1000-4602(2009)19-0031-04EffectofPhosphateonAnammoxofMunicipalSewageatNormalTemperatureWANGJun-an, LIDong, TIANZhi-yong, ZHANGJie(KeyLaboratoryofBeijingforWaterQualityScienceandWaterEnvironmentRecoveryEngineering,BeijingUniversityofTechnology,Beijing100124,China) Abstract: Thebiofilterwasusedtotreatmunicipalsewageatnormaltemperature,andtheeffectofphosphateconcentrationontheefficiencyofAnammoxwasinvestigated.Theresultsshowthatphos-phatehasareversibleinhibitioneffectonAnammox.WhentheinfluentTPismorethan10mg/L,thei-vory-whitesedimentisformedintheAnammoxbiofilter.ThesedimentismostlyMgNH4PO4·6H2O(MAP)whenanalyzedbyX-raydiffractioncrystal.ItsphysicalblockfunctionaffectsthenormaltransferofAnammoxreactant.Therefore,thenitrogenremovalloadisreduced.However,theefficiencyofAna-mmoxbiofiltercanberapidlyrecoveredafterphosphateisnolongeradded,theinfluentpHisdecreasedfortwohoursandbackwashingisapplied. Keywords: municipalsewage; Anammox; normaltemperature; phosphate; nitrogenre-moval :(50878003); (8092006); (08UWQA08); (bcx-2009-026) (Anammox)[1]。,Anammox,[2]。,Anammox[3]、[4],、。Anammox,:、pH、DO、[5]。,Anammox,·31·第25卷 第19期2009年10月 中国给水排水CHINAWATERWASTEWATER Vol.25No.19Oct.2009Anammox,Anammox,。,Anammox,Anammox。1 试验材料与方法1.1 ,70mm,2.0m,5.0~8.0mm,1.50m,300mm,200mm,。1。1 Fig.1 SchematicdiagramofAnammoxfilter。,Na3PO4·12H2OTP,,;,Na3PO4·12H2O、pH,。1.2 /,NaNO2Anammox。:COD=50~60mg/L,NH+4-N=60~80mg/L,NO-2-N1mg/L,NO-3-N1mg/L,TP=0.74mg/L,=14~19℃,pH=7.50~8.00。1.3 NH+4-N:;NO-2-N:N-(1-)-;NO-3-N:;DO:WTWinoLabStirrOxG;pH:pH;COD:。500mL,,(),,X。2 结果与分析2.1 70mg/L、90mg/L、1.8m3/(m2·d)、pH7.45~8.29、17.4~18.6℃,TPTN,2。2 TPTNFig.2 EffectofinfluentTPonTNremovalload2,TP,TN。TP≤10mg/L、70mg/L、90mg/L,TN4kgN/(m3·d),TP,,。TP10mg/L,TP,TN;TP130mg/L,0.67kgN/(m3·d),16.8%;TP,,TP。TNTP,。,TN,,TP,。,Ana-mmox,·32·第25卷 第19期 中国给水排水 。X,(MAP,),。MAP,Mg2+、NH+4PO3-4MAP,,,[6]。、,。2.2 ,。,,,70、90mg/L,24hTN2.06kgN/(m3·d),51.5%。,Anammox。Anammox,Anammox,,,,,Anammox,。pH6.00~6.70,。,;,10min,24h3.55kgN/(m3·d),88.8%。,pH,,,Anammox。3 讨论,Anam-mox10mg/L,。[7],,,0.1kg/(m3·d)0.01kg/(m3·d);CaP,。。10mg/L,Anammox,,,Anammox,。,,。,,,pH6.00~6.70,。4 结论① ,Ana-mmox。Ana-mmox,TP10mg/L。② Anammox,,,,。③ 、(2h)pH6.00~6.70,Anammox,2d88.8%。:[1] MulderA,vandeGraafAA,RobertsonLA,etal.Anae-robicammoniumoxidationdiscoveredinadenitrifyingflu-idizedbedreactor[J].FEMSMicrobiolEcol,1995,16(3):177-183.[2] Dapena-MoraA,FernándezI,CamposJL,etal.Evalua-tionofactivityandinhibitioneffectsonAnammoxprocessbybatchrestsbasedonthenitrogengasproduction[J].EnzymeMicrobTechnol,2007,40(4):859-865.[3] GaliA,DostaJ,vanLoosdrechtMCM,etal.Twowaystoachieveananammoxinfluentfromrealrejectwatertreatmentatlab-scale:partialSBRnitrificationandSHARONprocess[J].ProcessBiochem,2007,42(4):715-720.(下转第36页)·33·王俊安,等:常温下磷酸盐对城市污水厌氧氨氧化的影响第25卷 第19期。BAF,UF0.1~0.2μm,。2.4 12,BAF9~11,16%;UF5~7,40%;50%。,,。3 结论① BAF/UFCOD,60%。BAFCOD35%,UF41%。② BAF/UFNH3-N92%,。NH3-NBAF,90%;UFNH3-N,4%。③ BAF69%,UF98%,99%。④ BAF/UF50%,。:[1] .[M].:,2002.[2] PetalaM,TsiridisV,SamarasP,etal.Wastewaterrecla-mationbyadvancedtreamentofsecondaryeffluents[J].Desalination,2006,195(1-3):109-118.[3] ,,,.[J].,2006,22(16):73-76.[4] XIEWenyu,ZHONGLi,CHENJianjun.Treatmentofslightlypollutedwastewaterinanoilrefineryusingabio-logicalaeratedfilterprocess[J].WuhanUniversityJour-nalofNaturalSciences,2007,12(6):1094-1098.[5] ,,.[J].,2002,18(8):26-28.[6] ,,,.[J].,2007,33(2):74-76.[7] ,,,.[J].,2004,24(1):38-41.[8] LeeCW,BaeSD,HanSW,etal.Applicationofultra-filtrationhybridmembraneprocessesforreuseofseconda-ryeffluent[J].Desalination,2007,202(1-3):239-246.:(1968- ), , , , , 。:13892803449E-mail:zhuannianliu@163.com:2009-06-02(上接第33页)[4] ,,,.[J].,2007,28(3):607-612.[5] ,,,.[J].,2007,28(4):800-804.[6] OhlingerKN,YoungTM,SchroederED.Predictingstruviteformationindigestion[J].WaterRes,1998,32(12):3607-3614.[7] vandeGraafAA,BruijnPD,RobertsonLA,etal.Au-totrophicgrowthofanaerobicammoniumoxidizingmicro-organismsinafluidizedbedreactor[J].Microbiology,1996,142(8):2187-2196.:(1981- ), , ,, 。:13811377861E-mail:wangjunan001@163.com:2009-03-03·36·第25卷 第19期 中国给水排水
本文标题:常温下磷酸盐对城市污水厌氧氨氧化的影响王俊安
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