NO2浓度对反硝化聚磷颗粒污泥缺氧吸磷的影响穗贤杰

:,,1983,,。＊(No.50378076)。NO-2浓度对反硝化聚磷颗粒污泥缺氧吸磷的影响＊穗贤杰1　韩青青1　刘小英1　赵红梅2　彭党聪1(1.,　710055;2.,　710064)　　　NO-3,NO-2。,,NO-2≤6.0mg/L,NO-2,N3.45mg;NO-2≥10.0mg/L,,N1.00mg;NO-2HNO2,HNO20.0008mg/L。　　　　　NO-2EffectofNO-2onphosphorousuptakeoftheSBRdenitrifyinggranularsludge　SuiXianjie1,HanQingqing1,LiuXiaoying1,ZhaoHongmei2,PengDangcong1.(1.SchoolofEnvironmentalandMunicipalEngineering,Xi'anUniversityofArchitectureandTechnology,Xi'anShanxi710055;2.SchoolofEnvironmentalScienceandEngineering,Chang'anUniversity,Xi'anShanxi710064)Abstract:　Batchphosphorous(P)uptakeexperimentswereperformedtodeterminetheeffectofnitriteconcen-tration(NO-2)onPuptakeofthedenitrifyinggranularsludgeoftheA2/OSBRemployedfortreatingasyntheticfeed,whichwassupplementedwithincreasingamountofnitrateafterthegranularsludgewasformed.TheSBRgran-ularsludgewascapableofusingnitrateastheelectronacceptortoremoveabout78.9%ofthetotalPremovedandthatupto6.0mg/LofNO-2wasaccumulatedduringdenitrification.ThePuptaketestresultsshowthatthedenitrif-yinggranularsludgeusednitriteastheelectronacceptortoremoveP.AtalowinitialNO-2of≤6.0mg/L,thePup-takewasfastasevidencedbythehighPremovalrateof3.45mgNconsumed,whichwasmuchfasterthanthePre-movalintheSBRusingNO-3astheelectronacceptor(1.58mgNconsumed);however,atahighinitialNO-2of≥10.0mg/L,thePuptakewasinhibitedtoresultinalowremovalrateof1.00mgNconsumed.Keywords:　granularsludge;denitrifyingphosphorousuptake;nitriteconcentration　　,[1-3],。,HNO3,C/NC/P()、。NO-2,NO-2,KERRN-JESPERSEN[4]/、,HNO3NO-2;[5]NO-2。NO-2,JENS[6],NO-2(≤4～5mg/L),,(≥8mg/L),;HU[7],NO-235mg/L,,NO-2NO-3、O2。,NO-3,NO-2。1　1.1　试验装置　　1。SBR,31.5cm,16.0cm,5L,4L。SBR,,。、2L,SBR,150r/min。,0.08～·31·　NO-2DOI:10.15985/j.cnki.1001-3865.2008.10.0080.10m3/h;NaNO3SBR。。1　Fig.1　SchematicdiagramoftheexperimentalSBRsystem1—;2—;3—;4—;5—;6—;7—;8—;9—SBR;10—;11—;12—NaNO3;13—1.2　试验方法A2/O,24h,SBR,2L。SBR/,4h,8h,、1、3min,2∶3。SBR(25±2)℃,pH7.0～8.5。,,SBR。SBR,,NO-3。,250mL,,SBR500mL,SBR1/2(18mg/L),(25±2)℃,pH7.0～8.5,NO-2,NO-2。1.3　试验用水　　,1,2。1　1)Table1　CompositionoftheSBRfeedNaAc/(mg·L-1)300NH4Cl/(mg·L-1)15KH2PO4/(mg·L-1)10/mL1NaNO3/(mg·L-1)　0～15　　:1)NaAcCOD;NH4Cl;KH2PO4;15L;NaNO3。2　Table2　Compositionofthemineralsolution/(mg·L-1)/(mg·L-1)FeSO4·7H2O3000H3BO320MnSO4·4H2O26NiCl2·6H2O36CoCl2·6H2O5050CuCl2·2H2O7(NH4)6Mo7O24·4H2O21ZnCl2241.4　分析方法PO3-4、NO-2、NO-3、MLSS[8]。2　2.1　颗粒污泥的性质,,,0.5mm。,(SVI)30mL/g。2.2　典型周期内磷、NO-3、NO-2随时间的变化SBR//(90min/90min/50min),3600mg/L,、NO-3、NO-22。2,HNO3,NO-3,,21.5mg/(g·h)(),7.43mg/(g·h)(N),N1.58mg,(/(+))78.9%。HNO330min,NO-3,NO-2,5.9mg/L。NO-2,NO-31.6mg/L,NO-2,3.94mg/(g·h)。2　、NO-3、NO-2Fig.2　TypicalprofilesofP,NO-3andNO-2concentrationsoftheA2/OSBR·32·　　30　10　2008102.3　NO-2浓度对反硝化聚磷的影响NO-2,SBR,NO-2,3。3　NO-2Fig.3　EffectofinitialNO-2onPuptakeofthedenitrifyinggranularsludge　　3,NO-2,NO-23.0、6.0mg/L,NO-2,N3.45、2.62mg,4.15、6.16mg/(g·h),2NO-3,NO-2NNO-3,。NO-28.0mg/L,2hNO-26.0mg/L,,N1.20mg,。NO-210.0mg/L,N1.00mg,2hNO-22.8mg/L,NO-2。:NO-2;NO-2,NO-2,NO-2,。　　NO-2。WEON[9]HNO2。HNO2pH,pH,。PO3-4,ATP,,ATP,ATP/ADP,,PO3-4。HNO2(FNA,mg/L)pH,(1)。FNA=46cNO-214×10nKa(1):cNO-2NO-2,mg/L;Ka;npH。　　NO-210.0mg/L,pH8.0。(1),HNO20.0008mg/L。,HNO20.0008mg/L,。[10]HNO2,HNO20.0004mg/L,,HNO2。3　　(1)NO-3,21.5mg/(g·h),7.43mg/(g·h),N1.58mg,78.9%,NO-25.9mg/L。(2)NO-3,(下转第39页)·33·　NO-2,,,,。(4),,。[1]　OTTENGRAFSPP,VANDENOEVERAHC.Kineticsoforganiccompoundremovalfromwastegaseswithabiologicalfilter[J].Biotechnol.Bioeng.,1983,25(12):3089-3103.[2]　IBRAHIMMA,MIZUNOH,YASUDAY,etal.Removalofmixtureofacetaldehydeandpropionaldehydefromwastegasinpackedcolumnwithimmobilizedactivatedsludgegelbeads[J].BiochemicalEngineeringJournal,2001,8(1).[3]　DESHUSSESMA,HAMERG,DUNNIJ.Behaviorofbiofil-tersforwasteairbiotreatment.I.Dynamicmodeldevelopment[J].Environ.Sci.Technol.,1995,29(4):1048-1058.[4]　DESHUSSESMA,HAMERG,DUNNIJ.Behaviorofbiofil-tersforwasteairbiotreatment.II.Experimentalevaluationofadynamicmodel[J].Environ.Sci.Technol.,1995,29(4):1059-1068.[5]　DORADOAD,BAQUERIZOG,MAESTREJP.Modelingofabacterialandfungalbiofilterappliedtotolueneabatement:Kineticparametersestimationandmodelvalidation[J].Chemi-calEngineeringJournal,2008,140(7):52-61.[6]　IKEMOTOS,JENNINGSAA,SKUBALKL.Modelinghy-drophobicVOCbiofiltertreatmentinthepresenceofnutrientstimulationandhydrophilicVOCinhibition[J].EnvironmentalModelling&Software,2006,21(10):1387-1401.[7]　BAQUERIZOG,MAESTREJP,SAKUMAT.Adetailedmodelofabiofilterforammoniaremoval:Modelparametersa-nalysisandmodelvalidation[J].ChemicalEngineeringJournal,2005,113(10):205-214.[8]　,,.[J].,2004,7(1):12-14.[9]　.[M].:,2002.[10]　BRENNANRA,NIRMALAKHANDANN,SPEECERE.ComparisonofpredictivemethodsforHenry'slawcoeffi-cientsoforganicchemicals[J].WaterResearch,1998,32(6):1904-1906.[11]　SHAREEFDEENZ,BALTZISB.Biofiltrationofmethanolvapor[J].Biotechnol.Bioeng.,1993,41(5):512-524.[12]　LUC.Amodelfortreatingisopropylalcoholandacetonemixturesinatrickle-bedairbiofilter[J].ProcessBiochemistry,2004,39(12):1849-1858.[13]　SHAREEFDEENZ,SHAIKHAA,ANSARZ,et.al.Biofil-trationofvolatileorganiccompound(VOC)mixturesundertransientconditions[J].ChemicalEngineeringScience,1997,52(11):4