改善MSBR系统脱氮效果的试验研究

MSBR,,(,200092):MSBR,,,:,,,,,,,,:MSBR;;:X703:A:1000-4602(2001)01-0009-06ExperimentalStudyonImprovingNitrogenRemovalEfficiencieswithModifiedSequencingBatchReactorLIChun2ju,GUGuo2wei,YANGHai2zhen(SchoolofEnviron.Sci.andEng.,TongjiUniv.,Shanghai200092,China)Abstract:MSBRprocessisanewlydevelopedbiologicalnutrientremovaltechnology,whichcombinescontinuous-flowreactorwithSBRprocess.Inordertoimprovenitrogenremovalefficiency,theinfluentwasintroducedtoanoxiczoneandnitrogenandphosphorusremovalefficiencieswerestud2ied.Theresultsshowedthatthedenitrificationratecoefficientdoubledandthenitrogenremovaleffi2ciencyincreased,whilethephosphorusremovaldeclinedduetodecreasedcarbonsourceandincreasednitratecontentinanaerobiczone.Accordingtotheproblemsappearedinthestudy,severalmodifica2tionsonoperationanddesignofintermediatesettlingtankwereproposedaswell.Keywords:MSBR;removalofnitrogenandphosphorus;denitrification:(96-909-01-02-05)MSBR,,,/,,1530,0.230.30kgCOD/(kgMLSSd),COD5051mg/L,,60%77%MSBR,,,MSBR1111MSBR:,92001Vol.17CHINAWATER&WASTEWATERNo.1©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.11MSBR(2)(L)350860570218070:850191L,MSBR,12:PLC,,:(ND)::::(DF15)::,112MSBR121MSBR2MSBR,,,SBR1[1(a)2(a),R1R2],SBR1,,,,,SBR2,SBR1,,SBR2,[1(b)],1/3,1/3Q,1/3Q[2(b)]113MSBR,012001Vol.17No.1©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,22(min)504030504030SBR1SBR2ACBABSBR1SBR2,C(),114,,CODTKN4.87CODTP51.3,,,(3)3mg/LCODBOD52004001001302050308027.51005015151.5115B,,A,41165221166,AB,A,,,pH,,,4AB728225271()22.830(25.4)20.429.3(23.9)(L/h)325375220105(d)2025(mg/L)0.10.31.01.50.30.5(mg/L)246931011.771.601.070.81,5CODcrTP,NO-2-N,--NO-3-N,,NO-2-N+NO-3-N+6AB(h)8.006.93(h)0.260.30(mg/L)55.936.216.115.1(mg/L)14.313.32.44.1(%)73.259.95.714.1:Barnard,NO-x-N,dNO-x-NdtN=KdX(1)(dNO-x-N/dt)N,mg/(Lh)112001Vol.17No.1©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.X,mg/LKd,:VdNdt=QinNin-QeffNeff-dNO-x-NdtNV(2)(1),:VdNdt=QinNin-QeffNeff-KdX(t)V(3)(dN/dt),mgNO-x-N/(Lh)Qin,L/hNin,mg/LQeff,L/hNeff,mg/LV,LX(t)t,mgVSS/LMSBR,,,,,dN/dt0,,(3)A:(090min):dNdt=(1.77QNSBR+0.324QNin-VANO2.09QNANO)1-KdX(t)(4)(90120min):dNdt=0.324Q(Nin-NANO)VANO-KdX(t)(5)B:(090min):dNdt=1.6Q(NSBR-NANO)VANO-KdX(t)(6)(90120min):dNdt=-KdX(t)(7)Q,A375L/h,B324.7L/hNSBR,mg/LNANO,mg/LVANO,180LTN/T(4)(7)dN/dt,TNSBRNANOX(t)tNSBRNANOX(t),ABKd(7)7KdA(min)NO-X-N(mg/L)X(t)(mg/L)Kd103[mgNO-X-N/(mgVSSh)]t=10t=40t=65t=90t=1050.3310.45.3210839.906.0912308.2210.66.0512078.2810.56.2211428.773.8710327.598.22B(min)NO-X-N(mg/L)X(t)(mg/L)Kd103[mgNO-X-N/(mgVSSh)]t=10t=40t=65t=90t=1051.169.998.47257412.28.0829743.7513.48.9230134.2014.49.4224575.338.8824080.8883.54KdKd,(),BKd,AKdB,,KdA,,,Kd,,212001Vol.17No.1©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,AKd,Kd,2128,98AB(mg/L)4.983.991.301.55(mg/L)1.230.810.850.71(%)70.975.923.523.846.151.6(mg/mg)0.0250.0299AB(mg/L)5.786.2315.639.200.402.700.444.080.542.70(mg/L)12792169(mg/L)17743318(gP/(gMLSSd))0.130.26(gP/(gMLSSd))0.0650.087COD/TP60,,B,,,,A,,,,1/3,,(9),AB(8)9,A,B,,,[5],,,213MSBR,,,,,,,,,,,,,,,,,,,,(0.20.5)Q,,B(),,,,,,105L/h(1/3Q),,1mg/L,B,,,,,,(),,312001Vol.17No.1©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,,3,,1,,,PHB,,;,,;,:[1].[M].:,1996.[2]GeorgeTchobanoglous,FranklinLBurton.WastewaterEngineering:Treatment,Disposal&Reuse[M].Mctcalf&Eddy,INC,1991.[3]PSBarker,etal.DenitrificationBehaviorinBiologicalExcessPhosphorusRemovalAemovalActivatedSludgeSystem[J].WatRes,1996,30(4):769-780.[4]ACarucci,etal.KineticsofDenitrificationReactioninSingleSludgeSystem[J].WatRes,1996,30(1):51-56.[5]TMino,etal.MicrobiologyandBiochemistryoftheEn2hancedBioligicalPhosphateRemovalProcess[J].WatRes,1998,32(11):3194-3207.:(1974-),,,,,,::[phone](0)55613200(H)E-mail:[e-mail][e-mail]@ust.hk:2000-05-13:8104m3/d;:;:;:;:15104m3/d;;:;:,()412001Vol.17No.1©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.