多级AOVTBR组合工艺处理焦化废水

A/OVTBR*116024、A/OverticaltubulantbiologicalreactorVTBR、Fenton。A/OVTBRA/OVTBRVTBRFenton。ρCOD3000～3500mg/LρBOD51212mg/LρNH3-N109mg/LρDO3～7mg/LρDO1mg/LHRT56hCOD、BOD5、NH3-N98%、99%、95%GB8978－1996《》。VTBRCODTREATMENTOFCOKINGWASTEWATERBYCOMBINEDVERTICALTUBULANTBIOLOGICALREACTORPROCESSZhouJitiXingLinaZhangJinsongSchoolofEnvironmentalandBiologicalScienceandTechnologyDalianUniversityofTechnologyDalian116024ChinaAbstractAcombinationprocessofhydrolyticacidificationmultilevelverticaltubulantbiologicalreactorcoagulationandFentonoxidationhasbeenusedfortreatingcokingwastewater.TheresultsshowthatundertheconditionsoftheinfluentCOD3000～3500mg/LBOD51212mg/LNH3-N109mg/Ldissolvedoxygenintheaerobicreactorvariedwithin3～7mg/Landintheanoxicreactorbelow1mg/Lhydraulicretentiontime56htheiraverageremovalratesare98%99%95%respectively.TheconcentrationsoftheeffluentCODandNH3-Nmeetthefirst-orderof“TheIntegratedWastewaterDischargeStandard”GB8978－1996.Keywordscokingwastewaterverticaltubulantbiologicalreactorchemicaloxygendemandammonianitrogen*2008ZX07208-004-2。、、、、、、、、1-2。A/O、A2/O3-5。CODNH3-NCODNH3-NCODCOD6-7。VTBR、、、、、8-10。NH3-NCODVTBRCODGB8978－1996《》。11.11500～20001。62201062831mg/LpHρCODρBOD5ρNH3-NρTNρρpH3000～3500121210910099.6293.28.9～9.31.21VTBR。。A/OVTBR－、。VTBR4A1/A2/O1/O2A3/A4/O3/O4VTBR1O5。VTBR2∶1。pH8.9～9.31.3L/hρDO3～7mg/LρDO1mg/LHRT=56h。KH2PO4。11.3“”。COD。22.1CODCOD2、3。20～25dVTBRCOD。25～63dCODCODCOD。2、VTBRCOD3、VTBRCOD25～63dVTBRCOD1000～1250mg/LCOD。VTBR。25～40dVTBR、VTBRCODCOD40dVTBRCOD3。COD282mg/LCOD。VTBR7220106283。VTBRVTBRCODCOD。VTBRCODVTBRSSVTBRNO－2-N11。CODρCOD3000～3500mg/LρCOD220～340mg/L90%。CODFenton2COD98%FentonρCOD100mg/LGB8978－1996。2FentonCODmg/LρCODFentonρCODCOD/%3155629833795298.532165598.331714398.632294498.632395598.32.2NH3-NNH3-NNH3-NNH3-NNH3-NNH3-N12。VTBRNH3-N。ρCOD300～400mg/LCOD。VTBRρCOD1068～2006mg/LO24、5NO－2-NNO－3-N。VTBRρCOD157～360mg/LCOD。4、5O4NO－2-N、NO－3-NVTBRO2VTBRNO－2-N、NO－3-N4VTBRNO－2-N5VTBRNO－3-N。VTBRNO－2-N、NO－3-NVTBR。VTBRNO－3-NNO－2-NNO－2-N。pHpH8.5～9.2NO－2-N13。6NH3-NNO－3-N。GB8978－1996ρNH3-N≤15mg/L。7TN100mg/LVTBRTNTN。CODVTBRVTBRTNVTBR8220106283VTBRTN。6VTBRNH3-N7VTBRTN2.33。TN、TP78%、99.9%。BOD5。3ρCOD/mg·L－155.1ρNO－2-N/mg·L－10.11ρBOD5/mg·L－15ρTN/mg·L－127.7/mg·L－182.24ρ/mg·L－10.041ρSS/mg·L－12.5/mg·L－10.16ρNH3-N/mg·L－15.01ρ/mg·L－1ρKN/mg·L－17.12/50ρNO－3-N/mg·L－117.2/μs·cm－157703COD、NH3-N、、。A/OVTBRA/OVTBRVTBRFenton。ρCOD、ρNH3-N55.15.01mg/LGB8978－1996。1.J.200224116-18.2WenYB.Biologicaltreatmentofcoke-plantwastewaterforCODandNH3-NremovalJ.WaterSciTechnol19912361883-1892.3BrondS.BiologicalremovalofnitrogenintoxicindustrialeffluentshighinammoniaJ.WaterSciTechnol1994293231-240.4LiuJunxinWangBaozhenLiWeiguangetal.RemovalofnitrogenfromcoalgasificationandcokeplantwastewaterinA/Osubmergedbiofilm-activatedsludgeSBF-AShybridsystemJ.WaterSciTechnol1996341017-24.5YongmeiLiGuoweiGuJianfuZhaoetal.AnoxicdegradationofnitrogenousheterocycliccompoundsbyacclimatedactivatedsludgeJ.ProcessBiochemistry200137181-86.6.A2/OJ.2004141128-130.7.A2/O2D.2007.8.VTBRJ.199119194-96.9.J.200220122-23.10.VTBRJ.2004333170-171.11LiYMGuGWZhaoJFetal.Treatmentofcoke-plantwastewaterbybiofilmsystemsforremovaloforganiccompoundsandnitrogenJ.Chemosphere2003526997-1005.12.A1-A2-O1-[e-mail]2009－08－289220106283