A/O/OO/A/OPAHs1,2,1,2,1,2,1,2(1.,100013;2.,100013)[]A/O/OO/A/OPAHs,A/O/OPAHs95.85%,O/A/O88.50%;4PAHs;A/O/OPAHs(4);A/O/OPAHs73.44%,O/A/O64.64%,A/O/OPAHsO/A/O。[];A/O/O;O/A/O;PAHs;[]X703[]A[]1005-829X(2020)03-0000-00TheeffectsofA/O/OandO/A/OprocessesonthereductionbehaviorofPAHSinthetreatmentofcokingwastewaterMaDong1,2,ZhouNa1,2,JiaYuan1,2,XiaoNaiyou1,2(1.ResearchInstituteofCoalChemistry,ChinaCoalResearchInstitute,Beijing,China,100013;2.StateKeyLaboratoryofHighEfficientMiningandCleanUtilizationofCoalResources,ChinaCoalResearchInstitute,Beijing,China,100013)Abstract:TheeffectsofA/O/OandO/A/OtreatmentprocessesonthereductionbehaviorofPAHswereexamined.TheresultsshowedthattheremovalefficiencyofthetotalPAHsinthewastewaterintheA/O/Oprocesswas95.85%,whichwashigherthan88.50%oftheO/A/Oprocess.Thesludgeinbothtwoprocessesshowedconcentrationenrich-mentofthePAHswithfourringsandabove.TheA/O/Oprocessshowedbetterresultsforthebiodegradationofrefrac-toryhigh-ringPAHs(morethan4rings).ThePAHsreductioncapabilityoftheA/O/Oprocesswas73.44%higherthan64.64%ofO/A/Oprocess,whichindicatedthattheA/O/OprocesswasgreaterthantheO/A/OprocessintermsofPAHsreduction.Keywords:cokingwastewater;A/O/O;O/A/O;PAHs;reductionbehavior,(PAHs)〔1-2〕,,PAHs16%〔3〕。2015PAHs50μg/L(a)0.03μg/L。A/A/O、A/O/O、O/A/O、A/O/H/O、SBR、〔4-8〕,COD、TN、NH3-N、BOD、,PAHs〔9-10〕。PAHs,〔13-14〕,,PAHs。,PAHs〔11〕〔12〕。PAHsPAHs,PAHs。,16PAHs,,[](2018MS002)40320203IndustrialWaterTreatmentVol.40No.3Mar.,202012019-12-0614:46:51,PAHs。11.1A/O/OO/A/O1。1A/O/OO/A/OA/O/OO/A/O2004、2009,3600、2400t/d,9、6t/d,A/O/O、O/A/O。、、、,A/O/OO/A/O、COD、。1.2。A、O1、O2,、A、O1、O2、。2018-12-032018-12-10,1,。1L。,0.45μm,pH24℃。,-20℃。1.3、、、,,;、、,,;,99%,;16,Naph、Acy、Ace、Fle、Phen、Ant、Flu、Pyr、(a)BaA、Chr、(b)BbF、(k)BkF、(a)BaP、(a,h)DBA、(1,2,3-cd)苝Inp、(ghi)苝BgP,,。1.4Ultimate3000;LDF-III;3-5N;RE-3000A;HDG-2A;DC150-1B。1.5PAHs。22.1PAHsA/O/OO/A/OPAHs,16PAHs10,2。(a)(b)2A/O/OO/A/O10PAHs2,O/A/OPAHsA/O/O,A/O/OPAHs393.56μg/L,O/A/OPAHs149.16μg/L。,16PAHs〔15〕、〔16〕、〔17〕、〔18〕140~5500、4000~15000、1.35、0.21~14μg/L。PAHs140~5500μg/L。PAHs,5,,5~62(a)。W.H.Zhang〔19〕,270PAHs,3~4PAHs。〔20〕3~4PAHs,5~6(a),。,A/O/OPAHs16.35μg/L,,95.85%;O/A/OPAHs17.152μg/L,,88.50%;A/O/O(a)1.26μg/L,O/A/O(a)1.38μg/L,PAHs50μg/L,(a)0.03μg/L,PAHs,A/O/OO/A/O。〔3〕,2~3PAHs4~6PAHs24%~49%56%~76%,PAHs,PAHs。2.2PAHs3A/O/OO/A/O10PAHs。(a)A/O/O(b)O/A/O(c)A/O/O(d)O/A/O3A/O/OO/A/O10PAHSPAHs,,,,PAHsPAHs2。10PAHs-(lgkOW)〔21〕,lgkOW,,,〔22〕,lgkOW25℃3.37,。,,。M.C.Leroy〔23〕27℃4℃,、27.3%、17%。,10PAHs,4。(a)A/O/O(b)O/A/O(c)A/O/O(d)O/A/O4A/O/OO/A/O4PAHs4,A/O/OO/A/O2~3PAHs,2~3PAHs,90%,。PAHs,,〔24〕。A/O/OPAHsO/A/O,PAHs。4(b)、(d),,4PAHs。4(b),A/O/O34PAHs,4PAHs2306.21μg/g1630.84μg/g,29.28%。PAHsPAHs〔25〕,PAHs,PAHs,PAHs。A/O/OO/A/OPAHs1。1A/O/OO/A/OPAHsμg/g1,A/O/O,PAHs117.46μg/g1481.54μg/g,O1PAHs2,APAHs,PAHs。O2,PAHs,PAHsO1,PAHs,PAHs,,PAHs〔26〕,O/A/OPAHsA/O/O。2.3PAHsPAHs,,〔27〕。W.H.Zhang〔28〕,PAHs,1%,PAHs。(1)(2)、PAHs,PAHs。Mi=CwiQw(1)Mo=CwoQw+CsQs(2):Mi———PAHs,μg;Cwi———PAHs,μg/L;Qw———,L;Mo———PAHs,μg;Cwo———PAHs,μg/L;Cs———,μg/g;Qs———,g。(Mi-Mo)/MiPAHs,5。5PAHs5,2~3PAHs,98%。。,A/O/O4PAHsO/A/O,4PAHs,A/O/O64.22%,O/A/O59.24%;5PAHs,A/O/O60.61%,O/A/O56.43%;6PAHs,A/O/O57.21%,O/A/O47.33%;A/O/OPAHs73.44%,O/A/O64.64%,A/O/OPAHsO/A/O。3(1)A/O/OO/A/OPAHs,A/O/OPAHs95.85%,O/A/O88.50%,PAHs,A/O/OO/A/O。(2)PAHs,A/O/OPAHs(4),O/A/OPAHs。(3)PAHs,A/O/OPAHs(4),A/O/OPAHs73.44%O/A/O64.64%,A/O/OPAHsO/A/O。[1]YunkerMB,MacDonaldRW,VingarzanR,etal.PAHsintheFra-AO1O2A/O/O—1165.231061.51709.24816.87—A/O/O393.5659.468.8816.94—16.35O/A/O—117.46430.281481.54574.86—O/A/O298.32131.86222.9839.15—34.304serRiverbasin:acriticalappraisalofPAHratiosasindicatorsofPAHsourceandcomposition[J].OrganicGeochemistry,2002,33(4):489-515.[2],.、[J].,2017,33(3):82-89.[3],,.[J].,2016,35(6):1875-1883.[4]LeFevreGH,NovakPJ,HozalskiRM.Fateofnaphthaleneinla-boratory-scalebioretentioncells:implicationsforsustainablestorm-watermanagement[J].EnvironmentalScience&Technology,2012,46(2):995-1002.[5]KazumiJ,CaldwellME,SuflitaJM,etal.Anaerobicdegradationofbenzeneindiverseanoxicenvironments[J].EnvironmentalScien-ce&Technology,1997,31(3):813-818.[6]ZhangWH,WeiCH,ChaiXS,etal.Thebehaviorsandfateofpoly-cyclicaromatichydrocarbons(PAHs)inacokingwastewatertreat-mentplant[J].Chemosphere,2012,88(2):174-182.[7]ZhangWH,FengCH,WeiCH,etal.Identificationandcharacteri-zationofpolycyclicaromatichydrocarbonsincokingwastewaterslu-dge[J].JournalofSeparationScience,2012,35(23):3340-3346.[8].A2/O[D].:,2018.[9],,.A/O2[J].,2012,32(11):87-89.[10]罛,.Fenton--O/A/O[J].,2018,49(1):24-27.[11].-SBR[J].,2013,25(12):50-52.[12],.[J].,2009,35(z2):223-225.[13],,,.[J].,2010,4(6):1201-1207.[14],,,.//[J].,2010,4(8):1719-1725.[15]ZhangWH,WeiCH,AnGF.Distribution,partitionandremovalofpolycyclicaromatichydrocarbons(PAHs)duringcokingwaste-watertreatmentprocesses[J].EnvironmentalScience.Processes&Impacts,2015,17(5):975-984.[16],,,.-[J].,2016,26(5):40-43.[17],,,.[J].,2015,34(6):1201-1208.[18],,.--16[J].,2015,24(6):77-80.[19]ZhangWH,WeiCH,YanB,etal.Identificationandremovalofpolycyclicaromatichydrocarb