FeCFentonMBBR工艺处理高浓度硫酸盐废水许劲

Fe/C－Fenton－MBBR121233121241．4000452．4000453．2100464．400023。COD11～23g/L62～78g/LCOD/SO2－4＜0．67BOD5/COD≈0．013。Fe/C－FentonMBBRFe/C－Fenton－MBBR《》GB8978—1996。Fe/CFentonMBBRX703C1000－4602201224－0086－05CombinedProcessofFe/CMicro-electrolysisFentonOxidationandMBBRforTreatmentofHigh-sulfateWastewaterXUJin12TANTao12LIYue-hua3LIJia-xiang3QILong12WANGYang-yang12MENGLi-rong41．SchoolofUrbanConstructionandEnvironmentalEngineeringChongqingUniversityChongqing400045China2．KeyLaboratoryofThreeGorgesReservoirRegion’sEco-Environment＜MinistryofEducation＞ChongqingUniversityChongqing400045China3．NanjingLyudaoEnvironmentalEngineeringCo．Ltd．Nanjing210046China4．ChongqingBranchChinaNortheastArchitecturalDesignandResearchInstituteCo．Ltd．Chongqing400023ChinaAbstractThehighsulfateconcentrationnotonlyinhibitsaerobicmicroorganismsbutalsoinhibitsanaerobicbiologicaltreatmentprocessbycompetingwithmethanogens．Furthermoretherefractoryandtoxiccompoundssuchasphenolsalsoenhancethedifficultyofbiologicaltreatment．Thehigh-sulfatewastewatergeneratedfromafinechemicalplantinChongqingwascharacterizedbyhighvaluesofCOD11to23g/Landsulfate62to78g/LlowvaluesofCOD/sulfateratio＜0．67andBOD5/CODratio0．013whichindicatedthatthewastewaterhadaverypoorbiodegradabilityandwasinappropri-atetobetreatedwithanaerobicbiologicalprocess．AsaresultFe/C－FentonwasaimedtoimprovethebiodegradabilityandtheMBBRwasoperatedasaerobicbiologicalunitinwhichsulphate-tolerantmi-crobesweredomesticatedasdominantmicroorganisms．InthecombinedprocessofFe/CFentonandMBBRalltheeffluentindexesmetthethirdlevelcriteriaspecifiedintheIntegratedWastewaterDis-chargeStandardGB8978－1996．Keywordshigh-sulfatewastewateriron-carbonmicro-electrolysisFentonoxidationmov-ingbedbiofilmreactorMBBRvolumetricloadingrate·68·2824201212CHINAWATER＆WASTEWATERVol．28No．24Dec．20121。。、、、、、、、COD、、、、、。《》GB8978—1996。“Fe/C－Fenton－－UASB－－”FentonpHUASB。COD/SO2－4＜0．671FentonMBBR。“Fe/C－Fenton+MBBR”。FentonFentonZahn－Wellens、、、BOD523MBBR45～9。。COD11～23g/LNa2SO462～78g/LpH2～3BOD5/COD≈0．013。“Fe/C+Fenton”Fe/C、Fenton1。1Tab．1WastewaterqualityanddischargestandardsCOD/mg·L－1SO2－4/mg·L－1SS/mg·L－1/pH5000～900062000～75000500200010～12＜500—＜400＜806～9508．8m3/d。254．4m3/d104．4m3/d150m3/d。、。《》GB8978—1996。21。1Fig．1Flowchartofwastewatertreatmentprocess·78·．watergasheat．comFe/C－Fenton－MBBR2824MBBRMBBRSV30。MBBR2。2MBBRTab．2Performanceofbio-carrierinMBBR/%/g·cm－3/m2·m－310mmH=9mm950．90～0．955003①。15．5m×3．5m×2．2m。。②Fe/C。23．75m×3．5m×2．7m。Fe－C、FentonFe2+。Fe/C。pH3～5。COD。③Fenton。Fenton、。CODFenton。COD50%。a．Fenton。13．55m×3．5m×2．7m。Fenton。COD13～19g/L62～78g/LpH3～5pH2～4。Fe/CFe2+H2O2Fenton。b．。16．0m×3．5m×2．7m。。。c．。16．5m×6．5m×6．8m。。30L/m3PAM。④。26．0m×6．25m×6．8m6．5m×6．5m×6．8mHRT24h。Fe/C－Fenton、、、、pH。。⑤MBBR。212．0m×6．5m×6．8mHRT45hCOD1．5kgCOD/m3·d。MBBR。50%。、。。3～4mg/L。⑥。16．5m×6．5m×6．0m0．7m3/m2·h。⑦。16．5m×6．5m×6．0m。5kg/m3PFS2．5kg/m3NaOHPAM、、pHCOD。⑧。23．25m×3．25m×3．2m。MBBR。。420109201011201011。MBBR20t。80kg。24h5000mg/L、·88·2824．watergasheat．comCOD500～1000mg/L。3～5d1000mg/L。、MBBRC∶N∶P=100∶5∶1。63．6m3/d25%18．84m3/min。。。17d。44d、。4254．4m3/dpH7．0～8．025g/L。MBBR21～30℃pH7．0～8．0DO3～4mg/L《》GB8978—1996。5MBBR。MLSS1027mg/LMLSS10050mg/LMLSS11077mg/L。0．5～1mm。MBBR。、、。。。620116。COD13000mg/L、71000mg/LCOD326mg/L25000mg/LpH6～9《》GB8978—19963。3Tab．3AcceptanceresultCOD/mg·L－1pH/mg·L－1SS/mg·L－1/mg·L－1130003．4225．320316．23267．010．035865006～924000．5COD、、SS97．5%、99．9%、57．6%99．9%。72MBBR。293．87359．596192．12042．157。19．27/m3。1．60/m3·d4．36/m311．76/m30．17/m31．38/m3。8①Fe/C+Fenton。+。②。。③、、。④、Fenton。⑤COD·98·．watergasheat．comFe/C－Fenton－MBBR2824MBBRCODGB11914—89COD。1LensPNLVisserAJanssenAJHetal．Biotechnolog-icaltreatmentofsulfate-richwastewatersJ．CritRevEnvSciTechnol19982841－88．2．D．2009．3LuigiRizzo．BioassaysasatoolforevaluatingadvancedoxidationprocessesinwaterandwastewatertreatmentJ〗．WaterRes201145154311－4340．4．MBBRJ．2009252063－66．5．J．200319256－57．6．J．2001215333－336．7AndreottoiaG．UpgradingofasmallwastewatertreatmentplantinacoldclimateregionusingaMovingBedBiofilmReactorMBBRsystemJ．WaterSciTechnol2000411177－185．8RustenBHellstromBGHellstromFetal．Pilottestin-gandpreliminarydesignofmovingbedbiofilmreactorsfornitrogenremovalattheFREVARwastewatertreatmentplantJ．WaterSciTechnol2000414/513－20．9LoukidouMXZouboulisAI．Comparisonoftwobiologi-caltreatmentprocessesusingattached-growthbiomassforsanitarylandfill[e-mail]櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵2012－04－23··IEexpo2013IEexpo2013。2013、、、、、、、。“”。。2013513—152013。、、。IEexpo2013。．c－watershow．com。。VIP100100、《》50。。·09·2824．watergasheat．com