AO法与BAF联合工艺处理炼油生产废水张兴

A/OBAF12131．7300002．1320213．030009A/OBAF300m3/h。CAF。96．7%。COD、、96．1%、94．3%、77%96．7%《》GB8978—19961．59kW·h/m3。X703．1C1000－4602201116－0073－04CombinedProcessofA/OandBAFforTreatmentofOilRefineryWastewaterZHANGXing1SANGHuan-zhi2LILi1SUNJin-fang31．NorthwestResearchInstituteCo．Ltd．ChinaRailwayEngineeringCorporationLanzhou730000China2．JilinBranchBeijingXingyouEngineeringConstructionSupervisionCompanyLimitedJilin132021China3．TaiyuanDesignInstituteChinaRailwayEngineeringConsultantsGroupTaiyuan030009ChinaAbstractThecombinedprocessofA/OandBAFisusedtotreathighconcentrationwastewaterfromoilrefineryproductionandthetreatmentcapacityis300m3/h．Thefloatingloopoilcollectorandsecondarycavitationairflotationsystemareusedtorecoveryoilycontaminantsinwastewater．Thesystemhasnoexternalpressureandlowtreatmentcost．Therecoveryrateofoilycontaminantsafterthesecondarycavitationairflotationis96．7%．TheremovalratesofCODNH+4－NS2－andoilsare96．1%94．3%77%and96．7%respectively．Thefinaleffluentqualitycanmeetthefirstlevelcriteriaspeci-fiedintheIntegratedWastewaterDischargeStandardGB8978－1996．Theelectricconsumptionis1．59kW·h/m3．KeywordsoilrefinerywastewatersecondarycavitationairflotationBAFfloatingloopoilcollector、、1。、、、、23。4。、、。、5。·37·271620118CHINAWATER＆WASTEWATERVol．27No．16Aug．2011300×104tA/OBAF300m3/h12891《》GB8978—1996。11.1、、pH38℃。300m3/h、1。1、Tab．1RawwastewaterqualityanddischargestandardpHCOD/mg·L－1BOD5/mg·L－1SS/mg·L－1/mg·L－1/mg·L－1/mg·L－1/mg·L－1/mg·L－16～9800～1000250～300200～300600～800200．540～5060～806～9≤60≤20≤60≤5≤0．5≤0．5≤0．5≤10BOD5/COD＞0．30。。0．30BOD5/CODBOD5、CODBOD5、CODBOD5/TN＞2．86。BOD5/TKN＞3．0。BOD5/NH+4－N3．75。1.2A/OBAF1。1Fig．1Flowchartofwastewatertreatmentprocess1.2.12。2Tab．2Mainstructures//m37．4m×1．7m×2m125．228．12m×14m×2．7m1106215．7m×11m×2．5m14315．50m×6．50m×5．50m11973m×4m×2m1243m×4m×2m12420m×3．5m222002．0m×4．4m×3．0m126．44．0m×8m×3．7m1118．4A/O27．0m×48m×4．9m2169443m×5m×7．4m1261BAF10m×3．5m×3．8m113310．0m×2．2m×3．0m166BAF7．0m×7．0m×6．5m81256012．6m×12．6m×2．7m142910．0m×8．0m×3．3m12641.2.2。。2．0h。·47·2716．watergasheat．com75mg/L。。CAF35mg/LDAF20mg/L。20%～30%。1.2.3BAF。A/OA/O。2、。4h。/100%～200%50%～100%/、。DO0～0．5mg/LDO2mg/L。A/O。A/O、COD95mg/LNH+4－N33mg/L。BAF《》GB8978—1996。。22.130d。3～5dAO。2～3d1～1．5h1/5、、。2.215～20℃15dAO＞1g/L。SV15%～20%25%50%。2.3AO10%。、、、、、、、。。。COD。。320107COD、、、6、2。·57·．watergasheat．comA/OBAF27162、Fig．2Variationofpollutantconcentrationininfluentandeffluent2COD、、、96．1%、94．3%、77%、96．7%。《》GB8978—1996。4①A/OBAF。②CAF、、、、。③、、、。④COD、、、96．1%、94．3%、77%、96．7%《》GB8978—1996。⑤1．59kW·h/m330%。1ChenBYChenSYLinMYetal．Exploringbioaug-mentationstrategiesforazo-dyedecolorizationusingamixedconsortiumofPseudomonasluteolaandEscherichiacoliJ．ProcessBiochem20064171574－1581．2ZhuLZXuXHuSetal．AdsorptionofanilineandphenolonWestLake’sedimentsJ．ChinJEnvironSci200221228－31．3VenkataMohanSChandrasekharaRaoNKrishnaPrasadKetal．BioaugmentationofananaerobicsequencingbatchbiofilmreactorAnSBBRwithimmobilizedsul-phatereducingbacteriaSRBforthetreatmentofsul-phatebearingchemicalwastewaterJ．ProcessBiochem2005404600－608．4．J．200723455[e-mail]2011－03－30·67·2716．watergasheat．com