低温胁迫下海藻糖强化厌氧氨氧化污泥活性研究张硕

ANAMMOXNH4+-NNO2--N。、、[1-2]。、。AAOB。。OSAKA25℃18℃AAOBTN0.07～0.26kg/(m3·d)[3]DOPHUONGPVA1%(25±0.5)℃ANAMMOX8.0kg/(m3·d)[4]。AAOB。LOTTIAAOB15℃75%～80%TN[5]35℃15℃ANAMMOX[6]YU14.8℃TN3.96kg/(m3·d)[7]。。AAOB。UASB12℃。11.1UASB1。1UASBFig.1UASBANAMMOXreactorplant110168UASB12℃UASB。。0.1mmol/LNH4+-N、NO2--N、TN70%、73%、63%TN26%。X703.1A1000-3770(2018)[e-mail]@sjzu.edu.cn4411201811Vol.44No.11Nov.,2018DOI:10.16796/j.cnki.1000-3770.2018.11.025116UASB7.3L5.2L2.1L。7cm2cm。。12℃pH6.8～7.2DO0.5%。1.2NH4ClNaNO2NH4+-N、NO2--N1:1.2NH4+-NNO2--N35～70mg/LNaHCO31g/LKH2PO427.2mg/LMgSO4·7H2O200mg/LCaCl2300mg/L。IEDTA5g/LFeSO4·7H2O5g/LIIEDTA5g/LZnSO4·7H2O430mg/LNiCl2·6H2O190mg/LCoCl2240mg/LMnCl2·4H2O990mg/LCuSO4·5H2O250mg/LNa2SeO4·2H2O210mg/LNaMoO4·2H2O220mg/LH3BO414mg/L。III1mL/L。1.312℃UASB。NH4+-NNO2--N46.63%44.38%NH4+-N、NO2--N0.137、0.161kg/(m3·d)TN0.298kg/(m3·d)0.060kg/(m3·d)。1.4NH4+-NNO3--NNO2--NN-(1-)-MLVSS-MLSSpHpH0.1℃[8]。1.5UASB12℃HRT6h。。5I1－9II9－180.01mmol/LIII18－260.03mmol/LIV26－340.1mmol/L34－440.2mmol/L。NH4+-N、NO2--N、NO3--N、TN。22.112℃45d2～5。2～5INH4+-N、NO2--N46～58、49～65mg/LNH4+-NNO2--N45%54%TNNLR0.30～0.35kg/(m3·d)TNNRR0.06～0.09kg/(m3·d)TN。2NH4+-NFig.2NH4+-Nremovalinreactorunderlowtemperature01020304050010203040506070020406080100
/%t/d
 ρ(NH4+-N)/(mg·L-1)ρ(NH4+-N)ρ(NH4+-N)3NO2--NFig.3NO2--Nremovalinreactorunderlowtemperatureρ(NO2--N)/(mg·L-1)ρ(NO2--N)ρ(NO2--N)0102030405001020304050607080020406080100
/%t/d
 4NH4+-NNO2--NFig.4ChangeofNH4+-NandNO2--Nloadinreactorunderlowtemperature010203040500.000.050.100.150.200.25
/(kgmd)t/d117。。。AAOB2NH4+-N、NO2--N200mg/LNO2--NAAOB。AAOB。。II0.01mmol/LNH4+-NNO2--N50%～57%50%～63%NH4+-N、NO2--N0.12～0.17、0.17～0.22kg/(m3·d)NLR0.30～0.34kg/(m3·d)NRR0.12～0.14kg/(m3·d)。12℃AAOB。III0.03mmol/LNH4+-NNO2--N。NH4+-NNO2--N58%～70%47%～74%。NH4+-N、NO2--N0.11～0.18、0.16～0.20kg/(m3·d)NLR0.31～0.35kg/(m3·d)NRR0.11～0.16kg/(m3·d)。IIIII。。IV0.1mmol/L。NH4+-NNO2--N12。NH4+-N、NO2--N0.14～0.20、0.17～0.20kg/(m3·d)NLR0.32～0.40kg/(m3·d)NRR0.19～0.25kg/(m3·d)。。V0.2mmol/L。NH4+-NNO2--NNH4+-N、NO2--N72%、74%。NH4+-N、NO2--N0.12～0.19、0.17～0.21kg/(m3·d)NLR0.30～0.40kgN/(m3·d)NRR0.18～0.25kg/(m3·d)。0.1mmol/L。。2.26。6IAAOB。n(NO2--N)/n(NH4+-N)AAOBAAOBNO2--NNH4+-NNOB。NO3--NNH4+-Nn(NO3--N)/n(NH4+-N)。IIIIIn(NO2--N)/n(NH4+-N)。。n(NO2--N)/n(NH4+-N)。IVn(NO2--N)/n(NH4+-N)。AAOB。2.3AAOBMLVSS、MLSS1MLSSMLVSS。5TNFig.5ChangeofTNloadinreactorunderlowtemperature010203040500.00.10.20.30.40.50.000.050.100.150.200.25010203040506070
NRR/(kgmd)/%NLR/(kgmd)t/d612℃Fig.6Meteredchangesinthereactionmatrixatdifferenttrehaloseconcentrationsat12℃n(NO3--N)/n(NH4+-N)010203040500.00.40.81.21.62.00.000.050.100.150.200.250.30t/d
n(NO2--N)/n(NH4+-N)n(NO3--N)/n(NH4+-N)n(NO2--N)/n(NH4+-N)4411118ResearchontheActivityStrengtheningofAnaerobicAmmoniumOxidationSludgebyTrehaloseinLow-temperatureStressZHANGShuo,LIJun,XIANGTao,TANGZhengkun(SchoolofMunicipalandEnvironmentalEngineering,ShenyangJianzhuUniversity,Shenyang110168,China)Abstract:Thecontinuousflowcultureofdomesticatedanaerobicammoniumoxidegranularsludgewascarriedoutinupflowanaerobicsludgebed(UASB)reactoratlowtemperature(12℃).TheeffectsoftrehalosedosageondenitrificationefficiencyandanaerobicammoniaoxidationsludgeactivityintheUASBreactoratlowtemperaturewerestudied.Theresultsshowedthatsuitabletrehalosedosagecouldincreasetheactivityofanaerobicammoniaoxidationbacteria.Whentheconcentrationoftrehalosewas0.1mmol/L,ithadthebestdenitrificationefficiency,theremovalofNH4+-N,NO2--N,TNwas70%,73%,63%respectively,andcomparedwithouttrehalosedosage,theremovalloadofTNincreasedabout26%.Keywords:lowtemperature;trehalose;anaerobicammoniumoxidation;activeMLSSMLVSS1MLSSMLVSSTab.1ChangeofMLSSandMLVSScontentalongdifferentlayerswithdifferenttrehalosecontentt/d2020303040403.6823.0564.1533.2564.0783.3891.8431.4561.9081.5892.0151.5680.50050.47640.45940.48800.49410.4627ρ/(g·L-1)ρ(MLVSS)/ρ(MLSS)1MLSS。IVMLVSSIII3.5%9.1%。。。。MLSSMLVSS。。3UASB12℃0.01mmol/LNH4+-NNO2--N57%50%～59%0.03mmol/LNH4+-NNO2--N56%57%。0.1mmol/LNH4+-N69%NO2--N73%0.2mmol/LNH4+-N71%NO2--N74%。12℃NH4+-N、NO2--N46.63%、44.38%TN、0.298kg/(m3·d)、0.060kg/(m3·d)12℃NH4+-NNO2--NNH4+-N、NO2--N70.07%、74.16%TN、0.332kg/(m3·d)、0.195kg/(m3·d)。ANAMMOX。。0.1mmol/LTN26%。[1],,.[M].:,2004.[2],,,.ANAMMOX[J].,2013,33(1):56-62.[3]OSAKAT,KIMURAY,OTSUBOY,etal.TemperaturedependenceforAnammoxbacteriaenrichedfromfreshwatersediments[J].JournalofBioscienceandBioengineering,2012,114(4):429-434.[4]DOPHUONGK,LAIMINHQ,WENJIEZ,etal.Effectoftemperatureonlow-strengthwastewatertreatmentbyUASBreactorusingpoly(vinylalcohol)-gelcarrier[J].BioresourceTechnology,2011,102(24):11147-54.[5]LOTTIT,KLEEREBEZEMR,HUZ,etal.Simultaneouspartialnitritationandanammoxatlowtemperaturewithg