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1,1,1,2(1.,450001;2.,450004):,pH,DOpH,NO2--N95%;、pH,;,6d,NO2--N43.7%,。:;;NO2--N:X7:A:1674-4829(2011)04-0019-03,2:[1]。,NO2--N[2-3]。[4],、、,。,。,。11.1SBR(SequencingBatchReactor)1。,30cm×20cm×30cm,20cm,12L。,。、、、、5。1.2,,1。:2011-01-14:2011-06-08:(1986-),,,,.PartialNitrificationRealizationandStabilityatNormalTemperatureXUPeng,HEZheng-guang,TANGYan-jie,ANGuo-anAbstract:Takingartificiallypreparedhighammonianitrogenwastewaterastheresearchobject,onthebasisoffullnitrificationdenitrificationsludge,throughcontrollingtheaerationandthepHofinfluentwater,short-cutnitrification-denitrificationsludgewithlowDOandhighpHwasachieved.Thenitritenitrogenaccumulationratecouldabove95%.ThentograduallyincreasetheaerationrateandlowertheinfluentpH,thephenomenonthatshort-cutnitrificationwasnotdestroyedwasfound.Whenrealtimecontrolwaschangedtofixedtimecontrol,onthe6thdayafterexcessiveaeration,accumulationofnitritefellto43.7%andthestyleofnitrificationfromshort-cutnitrificationchangedtofullnitrificationwith6dexcessiveaeration.Keywords:Partialnitrification;Fixedtimecontrol;NO2--N24420118EnvironmentalScienceandTechnologyVol.24No.4Aug.20111.pH;2.pH;3.;4.;5.;6.;7.11237530cm610cm20cm30cm201181.3COD:;NH3-N:;NO-3-N:;NO-2-N:N-(1-)-;MLSS:;pH:pH;DO:DO。。22.1,DO,,,2。Ko,0.20~0.50mg/L,1.0~1.5mg/L,KUENENJG[5]DO0.40~0.80mg/L。50L/h,DO0.30~0.9mg/L。,pH,2pH,pH2,[6],NaOHpH,pH8.5,,pH7.6~8.5,。,SBR,(20~25℃),42L/h,pHpH7.6~8.5。,NH4+-N,47.5mg/L114.2mg/L。、NH4+-N2,NO2--N3。2,,DO,NH4+-N,NH4+-N。,NH4+-N,DO。3,,NO2--N,NO3--N,。,NH4+-N114.2mg/L,NH4+-N,5mg/L。DO,pHpH7.6~8.5,,NO2--N,NO3--N。NO2--N,NO2--N1317,19,NO2--N88.6%,pH。2.22.2.1(A)、,,SBRNH4+-N70mg/L,pH8.5,50,62,74L/h,pH,,4、5。1pHρ(COD)ρ(BOD)ρ(NH4+-N)ρ(NO-2-N)ρ(NO-3-N)/(mg·L-1)7.12~8.55302~710134~27333.1~108.90.1~1.10.7~2.32、NH4+-Nt/d120100806040200ρ(NH4+-N)/(mg·L-1)NH4+-NNH4+-N1591317212529333741201612840ρ(NH4+-N)/(mg·L-1)3NO2--N,NO3--N302520151050ρ(NO2--N),ρ(NO3--N)/(mg·L-1)100806040200NO2--N/%13579111315171921232527293133353739t/dNO2--NNO2--NNO3--N202446pHNH4+-N,NO2--N4,,,,50L/h,5h;62L/h,4h;74L/h,3.5h。62L/h74L/h10,NO2--N90%,。4、5,,pH,pH,pH。2.2.2pHNH4+-N90mg/L,74L/h,pH7.32,7.81,8.473,6、7。6、7,pH,NO2--N,90%。pH,,,pH7.32,7h,pH8.47,5h。pH20,NH4+-N90%,NO2--N90%。2.2.3SBR,,480min。NH4+-N75mg/L,62L/h,8、9。8、9,,NO3--N,5,451pH7pHNH4+-N8596A=50L·h-1(NH4+-N)A=62L·h-1(NH4+-N)A=62L·h-1(NO2--N)A=50L·h-1(NO2--N)A=72L·h-1(NH4+-N)A=72L·h-1(NO2--N)807060504030201000306090120150180210240270320330360/(mg·L-1)t/min9.49.18.88.58.27.97.60306090120150180210240270300330360pHA=50L·h-1A=62L·h-1A=74L·h-1t/min80706050403020100050100150200250300350400450500t/min/(mg·L-1)NH4+-NNO2--NNO3--N80706050403020100050100150200250300350400450500t/minNH4+-NNO2--NNO3--N/(mg·L-1)/1008060402000369121518212427303336394298.68.27.87.47pHNH4+-NNO2--NpHNH4+-N、/%(24)100806040200060120180240300360420480540pH=7.32pH=7.32pH=7.81pH=7.81pH=8.47pH=8.47t/min/(mg·L-1)NH4+-N:NO2--N:2120118NO3--N,NO2--N。6,NO3--NNO2--N,NO2--N43.7%,。3(1)DOpH。(2)DOpH,。(3),。[][1].[M].:,2004:11-12.[2],.[M].:,2002:78-79.[3],,.[J].,2010,23(4):8-10.[4].[J].,2007,23(3):74-75.[5]KUENENJG,ROBERTSONS.Combinednitrification-denitrificationprocesses[J].FEMSMicrobiologyReiviews,2003(15):99-101.[6],,,.[J].,2010,23(5):22-25.()38000mg/L,350mL,50%,500mL。2.5700mL,COD81500mg/L。pH6,99℃、100r/min,。0.5,1,1.5,2,2.5h,,5。5,,COD。1.5h,,COD206000mg/L,COD42060mg/L,420mL,60%。DMC,DMC60%,,。3(1)DMC,。(2)pH6、99℃、100r/min、700mL、1.5h,60%。DMC。[][1]JIANGQ,GAOZQ,LIXZ.Directsynthesisofdimethylcarbonateoverrareearthoxidessupportedcatalysts[J].NaturalGasChemicalIndustry,2006,31(2):39-43.[2]PIRTROT,MAURIZIOS.Thechemistryofdimethylcarbonate[J].AccChemRes,2002,5(9):706-716.[3]WANGWei-ming,JIANGQi.Eco-friendlycatalystforthedirectsynthesisofdimethylcarbonatefromcarbondioxide[J].4thInternationalConferenceonBioinformaticsandBiomedicalEngineering(iCBBE),2010(7):23-26.[4],,.[J].,2006,35(3):8-13.[5],.[J].,2004(10):8-11.[6]《》.[M].:,2002.()5t/h30000025000020000015000010000050000000.511.522.53500450400350300250200150100500V/mLρ(COD)/(mg·L-1)(21)!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!24
本文标题:常温下短程硝化实现及稳定性试验研究徐鹏
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