低温对于脱氮效果影响的试验研究韩洪军

韩洪军,黄集华,马文成(哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090):。(SBR)。15℃,8h12h。7℃,8h12h。。θN=1.03(7～15℃),θN=1.41(3～7℃);θDN=1.05(7～15℃),θDN=1.4(3～7℃)。3℃,0.07kgBOD/(kgMLSS·d)。:;;SBR;:TU992.3　:A　:0253-4320(2005)S1-0171-03ExperimentalstudyonnitrogenremovingefficiencyatlowtemperatureHANHong-jun,HUANGJi-hua,MAWen-cheng(SchoolofMunicipalandEnvironmentalEngineering,HarbinInstituteofTechnology,Harbin150090,China)Abstract:Thefeasibilityofhighlyefficientnitrogenremovalandcontrolmodeofstabilizationruninsystemwasstudied.TheeffectsofdifferenttemperaturesandrunningcyclesonnitrogenremovalinSBRprocesswerestudied.Resultsshowthatthereisnodifferenceinnitrogenremovalefficiencybetween8hand12hcyclereactors.Whenthetemperatureisbelow7℃,the12hcyclereactorshowsasuperiornitrificationrateandainferiordenitrificationrateincomparisontothe8hcyclereactor.Therelationshipsbetweennitrogenremovaleffectsandtemperaturedroparenotcontinuous.Fornitrification,thetemperaturecorrectionfactorsareθN=1.03(15～7℃)andθN=1.41(7～3℃).Fordenitrification,thetemperaturecorrectionfactorsareθDN=1.05(15～7℃)andθDN=1.4(7～3℃).At3℃,asuperioreffectofthenitrogenremovalcanbereachediftheBODcontrolledat0.07kgBOD/(kgMLSS·d).Keywords:lowtemperature;nitrogenremoval;SBRprocess;temperaturecorrectionfactor　:2005-03-06　:“863”(2003AA601090);“973”(2004CB4185)　:(1955-),,,,,、,[e-mail]。　　,,[1]。Halmo[2],,[3]8℃30℃1/7。,3～6,10℃,。(SBR)、,,。1　2SBR,1。,14cm,30cm,4.0L,1/2。,;。,BOD5()、COD()、SS()、NH+4-N()、NO-3-N()、NO-2-N()、DO()、pH、MLSS()。。,1。[4]。2,1·171·25现代化工July200520057ModernChemicalIndustryDOI:10.16606/j.cnki.issn0253-4320.2005.s1.044:2h※4h※1h※1h,8h;2:2h※8h※1h※1h,12h。,15,12,10,7,5,3℃。,,。(F/M,-),F/M0.15kgBOD/(kgMLSS·d),0.1～0.2kgBOD/(kgMLSS·d)。1　SSCODBOD5pHNH+4-N　85～140350～600260～4507.0～7.235～501154753557.140　　:pHmg/L。1—;2—;3—DO;4—DO;5—pH;6—pH;7—;8—;9—;10—;11—;12—图1　反应器实验装置2　2.1　,。4～45℃,35℃,35～42℃。,μNArrhenius,10℃μN0.30,20℃μN0.65,30℃μN1.20。10℃,μN,5～30℃,,。,2。2,,F/M0.1～0.2。7～15℃NH+4-N,91%。,,2～40℃,5～40℃,,。Monod,,,μmax,KS。,μ。,。2　/℃12/%(F/M)/kg·kg-1·d-1MLSS/mg·L-1/%(F/M)/kg·kg-1·d-1MLSS/mg·L-115920.172500930.123400575912910.152640920.123300575610900.162700910.13320058597910.143000910.11330061355740.144300850.16310067283520.144560530.17340048253810.075000910.07400058307℃,。5℃,1NH+4-N74%,285%;3℃,,152%,253%。,F/M0.07。23℃。291%,1,。3℃,。215～10℃。7℃,2。2.2　,·172·现代化工25,。COD,,,,。。,,2。25℃12。2,94%,8h,1,65%。7℃2,7℃,4h。7℃4h,7℃8h。1—1;2—2图2　5℃时NH+4-N的去除效果2.3　,:KT2=KT1·θ(T2-T1),KT1、KT2T1、T2,θ,lgKT2=(T2-T1)lgθ+lgKT1。,KN(gNH+4-N·kgMLSS-1·d-1)KDN(gNO-3-N/kgMLSS·d),3、4。3,7℃,KNKDN,。12,。,7℃,。1—1;2—2图3　硝化速率与温度关系曲线1—1;2—2图4　反硝化速率与温度关系曲线θN:7～15℃,θN1.03;3～7℃,,θN1.41。,Shammas[5]θN1.12～1.02,,7℃,25℃。,,MLSS。MLSS、、,。,8h112h2。1(6h/d)。7～15℃,3～7℃2。4,KDN21gNO-3-N/(kgMLSS·d)(15℃1),3.4gNO-3-N/(kgMLSS·d)(3℃2)。1,5℃,27℃。7℃,θDN1.05,3～7℃,1.40,12。　　(下转第177页)·173·20057:,NaOH,,。NaOH,NaOH2%。1—EVA;2—X-SB;3—OS;4—PVA图8　NaOH用量对DCS浓度的影响2.2.5　Na2SiO3用量的影响Na2SiO3,,。Na2SiO3DCS910。1—EVA;2—X-SB;3—OS;4—PVA图9　Na2SiO3用量对脱胶率的影响9,Na2SiO30%～1%,Na2SiO3,Na2SiO31%,。10,0%～2%Na2SiO3,DCSNa2SiO3,2%,DCS。Na2SiO31%。1—EVA;2—X-SB;3—OS;4—PVA图10　Na2SiO3用量对DCS的影响3　:0.7MPa,10min,1∶4,NaOH2%,Na2SiO31%。,85.4%,DCS0.82mg/mL。,,。[1].[J].,2000,19(2):1-3.[2]DoshiMR,DyerJM.PaperRecyclingChallenge[M].Volume1.Apple-ton,WI:Doshi&AssociatesInc,1997.[3]BeckD.Stickiesinrecyclepulpforuseinfinepaper-thesearchfortheprecisemethod[A].in:1997RecyclingSymposium[C].Chicago,IL,1997.Atlanta,GA:TAPPIPress.1997.[4].[D].:,2002.□　　(上接第173页),,。3　10～15℃。7℃3℃,F/M。0.07kgBOD/(kgMLSS·d),3℃。7℃,12h8h;7℃,8h12h,4h。,7～15℃,θN=1.03,θDN=1.05;3～7℃θN=1.41,θDN=1.4。[1]RandallCW.DesignandRetrofitofWastewaterTreatmentPlantsforBi-ologicalNutrientRemoval[M].Lancaster,Pennsylvania:TechnomicPub-lishingCompany,Inc.1992[2]HalmoG,EimhjellenK.[J].WatRes,1981,15(8):898-998.[3]HenzeM.[J].WatSciTech,1991,23(4):669-679.[4].[M].:,1989.[5]ShammasN.[J].WatPollutControlFed,1996,58:52-59.□·177·20057: