大蒜切片废水预处理工艺研究李建

2008366(1985-)，，，，。（，730070）。pH=3110.5～3mm4h,4hCODCr。ResearchonPretreatmentProcessforGarlicSliceWastewaterLIJian,WANGSan-fan,LIWenSchoolofEnvironmentalandMunicipalEngineering,LanzhouJiaotongUniversity,Lanzhou730070,China)Abstract:Iron-carbonmicroelectrolysisprocesswasusedinthetreatmentofgarlicwastewater.Theactionmechanismwasdiscussed,andtheinfluencingfactorssuchasthebesthydraulicretentiontime(HRT),aerationtime,theiron-carbonreclamationandreusewerealsodiscussed.UndertheconditionsofregulatingthepH=3,volumeratioofirontocarbon1:1,scrapirongranularity0.5~3mm,reactiontime4h,theaerationtimeofeffluent4h,theremovalrateofCODCrachievedthebest,thebiodegradabilitywasimprovedatthesametime.Aftertreatedbyefficientbiologicaltreatmentsystem,theeffluentreacheddrainagestandard.Keywords:allicin;iron-carbonmicroelectrolysis;microorganisms;wastewater。CODCrmg/L,。。。B/C[1]。。,,、。1[2]Fe/CFe2+·OH,。::Fe-2e→Fe2+E1=-0.440+0.03logαFe2+:2H++2e→2[H]→H2↑E2=-0.059pH-0.03lgpH:O2+4H++4e→2H2O()O2+2H2O+4e→4OH-()。。、pH63··2008366。2CODCr10000～12000mg/LBOD57000mg/LSS1000mg/LNH3-N200mg/LpH6～7。33.13.1.1CODCr10000～12000mg/L,pH6～7。。pHCODCr。400mmCODCr12000mg／LCODCr1。1CODCr4h46.34%4h。H2S。4hCODCr2。2CODCr40%。。3.1.2[2]10%pH8～95h12hCODCr1。1CODCr10140.412516.211569.38934.39297.411434.910041.17878.2/%8.318.6413.2111.82115%pHpH2～33h、4h、5hCODCr22CODCr/h3453459140.49140.49140.411569.311569.311569.35883.76917.56782.27451.87648.58040.7/%35.6324.3225.8035.5933.8930.5030%。、。3.2。pH64··2008366（48）50℃。5-3,11.1MHz;2;3。[1]J.E.Kennedy,High-intensityfocusedultrasoundinthelreatmentofsolidtumouts[J].Nat.Rev.Cancer,2005,5(4):321-327.[2]C.R.Thomas,C.H.Farny,C.C.Coussios,R.A.Roy,Dynamicsandcontrolofcavitationduringhighintensityfocusedultrasoundapplication[J].Acoust.Res.Lett,2005,6(3):182-187.[3]HongChen,XiaojingLi,MingxiWan.Spatialtemporaldynamicsofcavitationbubblecloudsin1.2MHzfocusedultrasoundfield[J].UltrasonicsSonochemistry,2006,13:480-486.[4]C.P.Zhu,S.C.He,M.L.Shan,J.C.Chen,StudyofapeakincavitationactivityfromHIFUexposuresusingTAfluorescence[J].Ultrasonics,2006,44(20):e349-e351.[5].“”[J].,2000,16:881-884.。4(1)CODCrH2SpH3～3.54h。CODCr40～50%。(2)pH8～8.54hFe(OH)3。[Fe(H2O)6]3+、[Fe2(OH)3]3+、[Fe3(OH)3]6+,,。。(3)。。。。(4)。。[1].、[J].200610.[2].[J].20031958-60.[3].[J].,2003,(04).[4].[J].,2006,(05).[5].[M].2002.CODCr3。3CODCr11336.712538.612386.411427.310583.47472.98752.38311.57654.87416.53763.54448.63858.84934.53986.9!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!65··