不同基质浓度下SBR进水方式对厌氧氨氧化的影响曹天昊

2015,35(8)2334~2341ChinaEnvironmentalScienceSBR,*,,,(,,100124)SBR,,,SBR.,,(NO2N≤400mg/L),,;(NO2N≥400mg/L),5h,39.11mgN/(gVSS·h),40%.NO2N(300±20)mg/L,5hSBR.,,.SBRX703.1A10006923(2015)08233408InfluenceoffeedingmodesonanammoxunderdifferentinfluentsubstrateconcentrationinSBR.CAOTian-hao,WANGShu-ying*,MiaoLei,LiZhong-ming,PENGYong-zhen(KeylaboratoryofBeijingforWaterQualityScienceandWaterEnvironmentRecoveryEngineering,BeijingUniversityofTechnology,Beijing100124,China).ChinaEnvironmentalScience,2015,35(8)2334~2341AbstractDifferentfeedingmodeswithdifferentinfluentsubstrateconcentrationwereinvestigatedusinganaerobicSBR,withtheconditionsofsyntheticwastewaterandrealmaturelandfillleachate,respectively.Theresultsshowedthatwhentreatinglowconcentrationofsyntheticwastewater(NO2N≤400mg/L),thefeedingmodeof5minwasabetterchoiceforAnammox.Whentreatinghighconcentrationofsyntheticwastewater(NO2N≥400mg/L),thecontinuousfeedingmodeof5hwasthebestchoiceforAnammox.Underthecontinuousfeedingmodeof5h,theaveragenitrogenremovalrate(ANRR)increasedto39.11mgN/(gVSS·h)andenhancedby40%comparingwiththefeedingmodeof5min.Whentreatingtherealmaturelandfillleachatewithnitriteconcentrationof300±20mg/L,ANRRof5hwasmaximumcomparingwithotherfeedingmodes.Becauseofthematurelandfillleachatecontainedalittleofbiodegradableorganicsandlotsofhazardoussubstances,theANRRoftreatingmaturelandfillleachatewaslowerthanthatoftreatingsyntheticwastewater.KeywordsanammoxfeedingmodesSBRsubstrateconcentrationlandfillleachate,.[12].,[35],.,.,,[6].,[7],[89].,NO2N,NH4+N,NH4+NNO2NNO3N[10].(1)[11].,,pHFe2+20141210(51478013);—*,,[e-mail]8SBR2335[1219].NH4++1.32NO2+0.066HCO3+0.13H+→N2+0.26NO3+0.066CH2O0.5N0.15+2H2O(1)(UASB)[8,1314].,SBR[20].,,.NO2N,,NO2N100mg/L,[21],,400mg/L[22].CarvajalArroyo[23]NO2N210mg/L.,NO2N,,.NO2N,.SBR,,.11.1,.(3000±100)mg/L,SVI120mL/g.[24],:KH2PO410mg/L,CaCl2·2H2O5.6mg/L,MgSO4·7H2O300mg/L,KHCO31250mg/L.NH4+NNO2NNH4ClNaNO2,.(g/L):EDTA5000mg/L,FeSO45000mg/L.:EDTA1000mg/L,H3BO414mg/L,MnCl2·4H2O990mg/L,CuSO4·5H2O250mg/L,ZnSO4·7H2O430mg/L,NiCl2·6H2O190mg/L,NaSeO4·10H2O210mg/L,NaMoO4·2H2O220mg/L.pH7.3±0.2.,.(3000±100)mg/L..1.1Table1CharacteristicsofmaturelandfillleachateCOD(mg/L)240019002200BOD5(mg/L)15050100NH4+N(mg/L)230018002000NO3N(mg/L)0.80.110.5NO2N(mg/L)1.10.10.4(mg/L)932062107200pH8.27.88.01.2SBR,10L.,60r/min,30±1,50%,HRT20h.,.,SBR.,SBR().,,SBR,.1.3COD[26];;;N(1);pHWTWpH.1.4(NRR)233635(2):4inf2inf4eff2effNHNNONNRRMLVSSNHNNONMLVSStt+−+−−+−=−⋅−+−⋅(2):NRR,mgN/(gVSSh);NH4+NinfNH4+N,mg/L;NO2NinfNO2N,mg/L;NH4+NeffNH4+N,mg/L;NO2NeffNO2N,mg/L;MLVSS:,g/L.(NLR)(3):64inf2infNHNNON10MLRVt+−−+−×=⋅(3):NLR:,kg/(m3·d);NH4+NinfNH4+N,mg/L;NO2NinfNO2N,mg/L.1.52Table2ExperimentalprocedureundertheconditionofsyntheticwastewaterNH4+(mg/L)NO2(mg/L)(min)11522005152200180152200902304400530440036030440042034566005456600240456600300456600360456600420,NO2N200mg/L400mg/L600mg/L,(5min)(2),.,,(5min)(4h5h6h),.200d,NO2N300mg/L.,,300mg/L.22.12.1.1,,,21.1(a).,,180min.1.5h3h,210min,,.,(NLR)1.408kg/(m3·d),(NRR)39.11mgN/(gVSS·h);1.5h3hNLR1.206kg/(m3·d),NRR23.47mgN/(gVSS·h).NO2N100mg/L,200mg/LNO2N,NO2N.,,.,200mg/L,.22.1(b).,,420min;6h7h,480min.,NLR1.2kg/(m3·d),NRR33.52mgN/(gVSS·h);6h8SBR23377hNLR1.05kg/(m3·d),NRR29.33mgN/(gVSS·h).,,NO2N200mg/L,,6h7h,,.1h,,NO2N,NO2N,.050100150200020406080100NH4+-N,NO2--N(mg/L)(min)aNH4+-N5minNO2--N5minNO2--N1.5hNO2--N3hNH4+-N1.5hNH4+-N3h010020030040050004080120160200bNH4+-N,NO2--N(mg/L)(min)NH4+-N5minNO2--N5minNO2--N6hNO2--N7hNH4+-N6hNH4+-N7h1Fig.1Performanceofanammoxunderthelowandmediumsubstrateconcentrations2.1.2,NO2N,.,,23.23.010020030040050060070080004080120160200NH4+-N,NO2--N(mg/L)(min)NH4+-N5hNO2--N5hNO2--N6hNO2--N7hNH4+-N6hNH4+-N7hNH4+-N4hNO2--N4h2Fig.2Performanceofanammoxunderthehighsubstrateconcentrations,4h7h,600min,5h6h,540min.4h,NO2N,240min198mg/L,,.7h,NO2N4h5h6h,NO2N86mg/L,,NO2N,.5h6h,NO2N.5h6h,NO2N300min360min132mg/L122mg/L.,6h,.,5h.3,,900min,5h233835540min.,5hNLR0.84kg/(m3·d)1.41kg/(m3·d),NRR23.47mgN/(gVSS·h)39.11mgN/(gVSS·h).NO2N,NO2N288mg/L,,,,.,,NO2N,.0100200300400500600700800900050100150200250300NH4+-N,NO2--N(mg/L)(min)NO2--N5minNO2--N5hNH4+-N5minNH4+-N5h35hFig.3Comparisonofanammoxperformancebetweenfeedingin5minandcontinuousfeedingin5hunderthehighsubstrateconcentration,3,,480minNRR,4.71mgN/(gVSS·h),NO2N.480min660min,NRR14.11mgN/(gVSS·h),480minNO2N215mg/L,,NRR.660min900min,NRR,26.25mgN/(gVSS·h),660minNO2N147mg/L,NO2N.,NO2N200mg/L,NO2N,NRR;NO2N,,NO2N150mg/L,NRR,26.25mgN/(gVSS·h).2.22.2.1SBR5h,,.4.,SBRNH4+NNO2N66,81mg/L.,NO2N(81mg/L),100mg/L[21],.,SBRNO2N,,SBR.,NH4+NNO2N,19h.NLR0.28kg/(m3·d),NRR8.93mgN/(gVSS·h).5h,19h.SBR6h,.4.4,,SBRNH4+NNO2N,6h,NH4+NNO2N,68mg/L76mg/L.SBRNO2N,SBRNH4+NNO2N,21h.6h,SBR21h,NLR0.25kg/(m3·d),NRR7.76mgN/(gVSS·h),5h.5h2h.,.6h,,8SBR2339,.0204060801001207.907.958.008.058.108.150204060801001207.927.968.008.048.080246810121416182022240204060801001207.927.968.008.048.08pH21h19h20hpHpHa:4hb:5hc:6h(h)NH4+-N,NO2--N(mg/L)4pHFig.4pHvariationsofAnammoxunderdifferentcontinuousfeedingmodesNH4+-NNO2--NpHSBR,4h,SBR.4.4,SBRNH4+NNO2N