3AMBR工艺污水脱氮特性试验研究

201515·168·(15100412510632)[]A2O3A-MBR24.0m3/dCODTN90.3%72.1%99.0%(GB18918-2002)A[]A2O-MBR[]X703.1[]A[]1007-1865(2015)15-0168-03ExperimentalStudyonSewageNitrogenRemovalCharacteristicsby3A-MBRTechnologyJiangNasha1,JinLahua2,ZhouYuan2(1.GuangzhouLampbiEnvironmentalScienceandEngineeringConsultingCorporationLimited,Guangzhou5100412.SchoolofEnvironment,JinanUniversity,Guangzhou510632,China)Abstract:Inordertoimprovenitrogenremovaleffectduringtraditionalsewagetreatmentprocess,pilotsewagetreatmentexperimentswereaccomplishedwithaninstallationof3A-MBRtechnologywhichcombinedtraditionalA2Oprocesswithaadjustingtankandmembranebiologicalreactor.TheexperimentalresultsshowthattheaverageremovalratesofCOD,TNandNH4+-Ncanarriveat90.3%,72.1%and99.0%respectively,andthewaterqualityofdischargeflowfromtheinstallationcanmeettherequirementofClassAofLevelIstandardofDischargeStandardofPollutantsforMunicipalWastewaterTreatmentPlant(GB18918-2002),undertheconditionoftreatmentscaleas1.0m3/h.Duringtheprocess,innercarbonconfigurationwasoptimizedthroughstepfeedingrawsewage,andthehypoxiaenvironmentinanoxicpondwasenhancedbybackflowfromMBR,thenthedenitrificationeffecthadbeenimproved.Keywords:A2O-MBRtechnologynitrogenremovaloxygensupplybybackflowstepfeedingrawwaterA2O[1-3]A2OA2O[4,5](MBR)[6-8]A2O-MBRA2O[9,10][11]A2O-MBRA2OMBR3A-MBR(A)(A)(O)(A)(MBR)A2O11.14.0m2.0m2.0m70.4μm8min7min1min1300~1500mg/L13000~5000mg/LQq1q2q3(q1)(q2)/(R2)MBR(R3)(R1)113A-MBRFig1Technologicalflowchartof3A-MBR1.21.2.1442q1=q2=0.4Qq2=0.2Qr1=400%r2=300%r3=200%R1=4QR2=3QR3=2Q1.2.2HRT17.14h1.98h4.61h5.74h2.87h1.94h1.310d6128mg/L6230mg/L6376mg/L6530mg/L7564mg/L17dQ24m3/d1.411.5[]2015-07-06[](2012108101002)[](1984-)20151542305·169·1000mLCODTNNH4+-NTPNO3-NCODNH4+-NTNTP-NO3-NMLSSDO1Tab.1Rawwaterqualitymg·L-1COD73.20~259.00166.1TN14.04~26.1820.1112.50~24.4418.47TP1.02~2.281.6522.1CODCOD73.20~259.00mg/L3A-MBRCOD25mg/LCOD90.35%23A-MBRCODCODCOD(GB18918-2002)A(COD50mg/L)2CODFig.2ConcentrationcurveofCODininflowandoutflowwater3A-MBRCODMBRCOD2.212.50~24.44mg/L3A-MBR0.5mg/L98.9%333A-MBR(GB18918-2002)A(5mg/L)(2)285%2NO3-NNO2-NN237%78%N220%MBR0.5mg/L3Fig.3Concentrationcurveofammonianitrogenininflowandoutflowwater2Tab.2Removaleffectofammonianitrogenduringeachtank/(mg·L-1)/%18.175-2.62485.561.66036.730.36578.010.29220.000.19832.192.3TN14.04~26.18mg/L3A-MBRTN8mg/LTN80.0%(GB18918-2002)A(TN15mg/L)443A-MBR4TNFig.4Concentrationcurveoftotalnitrogenininflowandoutflowwater2.43A-MBR(5)585%90%75%36%25%N2201515·170·(1)3A-MBRCODTNCODTN(GB18918-2002)CODTN90%98%80%(2)3A-MBR(3)[1]A2/O[D]2010[2]ParkHOOhSBadeRApplicationofA2Omoving-bedbiofilmreactorsfortextiledyeingwastewatertreatment[J]KoreanJournalofChemicalEngineering201027(3)893-899[3]A2/O[J]201430(24)80-83[4]A2/O[J]201430(15)135-137[5]A2/O[J]201030(5)625-632[6]BanuJRUanDKYeomITNutientremovalinanA2O-MBRreactorwithsludgereduction[J]BioresourceTechnology2008100(16)3820-3824[7]A2/O-MBR[J]()201527(2)55-58[8]A2/O-MBR[J]201541(6)8790[9]A2/O-MBR[J]201026(15)1-4[10]WangXBJinPKChenRetalAcompactA2/O-MBRsystemforwaterreclamationinthenorthwesternChina-acasestudy[J]DesalinationandWaterTreatment201452(25-27)5152-5157[11]A2/O-[J]20072322-26(215)4As5Cd6PbFig.4WorkingcurveofAsFig.5WorkingcurveofCdFig.6WorkingcurveofPb-[1][J]201349281-283[2]GB15892-2009[M]2009