硅藻土颗粒污泥协同处理焦化废水研究董春娟

375201310JournalofNanjingUniversityofScienceandTechnologyVol．37No．5Oct．20132012－03－1[e-mail]。．－J．2013375766－771．http//njlgdxxb．paperonce．org－123221．0300092．0300243．03000918LEGSBＲ1Ｒ27。、、3。EGSBCOD、、SCN－62．8%62．6%6．8%78．0%77．7%96．7%86．4%80．6%NH3－N27．4%－35．0%。EGSBCOD、、SCN－、NH3－N。Ｒ1+Ｒ2HＲT12h+12hCOD、、SCN－、NH3－N87．0%99．9%92．0%90．6%86．0%239．40．312．50．064．9mg/LEGSB、。SCN－SCN－NH3－N。X7031005－9830201305－0766－06CoordinatedtreatmentofactualcokingwastewaterwithdiatomiteandgranularsludgeDongChunjuan1ZhaiWei2FengMeirong3LiFeng2FanHonghui21．DepartmentofEnvironmentEngineeringTaiyuanUniversityTaiyuan030009China2．CollegeofEnvironmentScienceandEngineeringTaiyuanUniversityofTechnologyTaiyuan030024China3．ScienceandTechnologyCommunicationCenterTaiyuanScienceandTechnologyDepartmentTaiyuan030009ChinaDOI:10.14177/j.cnki.32-1397n.2013.05.004192ＲBFAbstractTostudytheoperationcharacteristicofthecoordinatedtreatmentoftheactualcokingwastewaterwithdiatomiteandgranularsludgetwo18Lmicro-aerobicexpandedgranularsludgebedsEGSBreactorsfedＲ1+Ｒ2withthecokingwastewaterareoperatedcontinuouslyforaperi-odofover7months．Theoperationprocesscontainsthreestagesthetwo-stagemicro-aerobicEGSBwithoutdiatomitethesingle-stagemicro-aerobicEGSBwithdiatomiteandthetwo-stagemicro-aero-bicEGSBwithdiatomite．Theresultsshowthatthediatomitecanenhancetheremovalratesofchem-icaloxygendemandCODphenolthiocyanateionSCN－andcyanideinthemicro-aerobicEGSBreactortreatingactualcokingwastewaterandtheremovalratesofCODphenolSCN－andcyanideincreaserespectivelyfrom62．8%62．6%6．8%and78．0%to77．7%96．7%86．4%and80．6%．TheremovalrateofammonianitrogenNH3－Ndecreasesfrom27．4%tonegativevaluethelowestis－35．0%．Thetwo-stagemicro-aerobicEGSBreactorsystemwithdiatomitecansimulta-neouslyachievethehighremovalratesofCODphenolSCN－cyanideandNH3－N．With12h+12hhydraulicresidencetimeHＲTofＲ1+Ｒ2thetotalremovalratesofCODphenolSCN－cyanideandNH3－Nare87．0%99．9%92．0%90．6%and86．0%respectivelyandtheeffluentcon-centrationsare239．40．312．50．06and4．9mg/L．Inthemicro-aerobicEGSBreactorwithdi-atomitethebio-diatomiteandgranularsludgeformedsynchronouslycanensurethehighbiomassconcentrationtheenrichmentmicro-communityandtheenoughnitrifyingbacteria．SCN－andphenolcaninhibittheactivityofnitrifyingbacteriaandtheSCN－inhibitionisduetothetoxicityofSCN－itselfbutnottheincreasedloadingofammoniaformedfromSCN－degradation．ThelowerSCN－andphenolconcentrationareneededsimultaneouslyforgettingthehigherNH3－Nremovalrate．KeywordsexpandedgranularsludgebedreactorsdiatomitecokingwastewaterthiocyanateionphenolammonianitrogenA2/OA2CODHＲT、、、1－3。A/OA2/O“—”A2/O4。UASB。EGSBEGSB－－56。EGSBCOD6。EGSB7。、、8。EGSB。EGSBEGSB、EGSB767375。EGSBCOD。EGSBEGSBEGSBEGSBEGSBNH3－NEGSB。11．1EGSB2．3m18L。1．8m10cm12L1。EGSBEGSBEGSB。1EGSB1．2COD、NH3－N、、SCN－1120～2940mg/L32～258mg/L253～624mg/L0．08～4．36mg/L152～404mg/LpH8．31～9．13。PNaHCO3pH。1．3EGSB25．5g/L0．56。0．2～0．8mm。1．4COD、、NH3－N9SCN－10。1．5EGSBＲ1Ｒ28000～10000mL/minEGSBＲ1Ｒ2+60g6g/L3。COD、、NH3－N、SCN－、。Ｒ1Ｒ2EGSBＲ1+Ｒ2NH3－N。COD、、NH3－N、SCN－pH。22．1CODＲ1Ｒ2EGSBＲ1Ｒ2Ｒ12Ｒ1COD。2EGSB1280～2200mg/LCODCOD42．6%12．3%～70．3%COD380～1860mg/L。60gCOD52．7%61．9%。COD21002920mg/LCOD61．9%36．3%32．5%10d867192－63．2%EGSBCOD62．8%61．4%～66．0%。COD14dCOD6d61．4%35．2%。6g/dCOD66．9%2060～2500mg/LCODCOD77．7%72．9%～85．4%COD300～640mg/L。EGSBCOD。2CODCODＲ12．2。、。3。3Ｒ13CODEGSB253～519mg/L62．6%11．5%～95．2%21～415mg/L。95．6%～97．6%4～30mg/L。COD97．2%97d→35．5%100d→97．6%103d。2．3NH3－NNNH3－NNO－3－N、NO－2－NSCN－－NCN－－NSCN－－NCN－－NCOD、、NH3－N3N。4Ｒ1NH3－N。4NH3－NNH3－NＲ14EGSB59～209mg/LNH3－NNH3－N27．4%5%～64%。60gNH3－N30．4%19%～41%。NH3－N－35．0%。2．4SCN－5Ｒ1SCN－。5SCN－SCN－Ｒ15EGSB167～302mg/LSCN－SCN－－4%～45%9673756．8%。60gSCN－3．8%6g/LSCN－9d－16%5d29%7d41%9d80%SCN－86．4%80%～91%。0．08～3．84mg/L0．03～1．37mg/L。0．5mg/L0．2mg/L。2．5EGSBNH3－NEGSBCOD、、SCN－。EGSB6。6EGSBＲ1+Ｒ2NH3－N1～62dNH3－N59～89mg/LNH3－N25．1%69～90dNH3－N160～209mg/LNH3－N26．5%。EGSBＲ1NH3－N27．4%EGSBＲ2NH3－N5．5%。6EGSBNH3－NEGSBNH3－NNH3－N86．0%76．0%～93．4%NH3－N4．9mg/L2～8mg/L。EGSB17．2%3．9%～28．6%NH3－NEGSB82．5%73．4%～92．6%NH3－N。COD、、SCN－87．0%99．9%92．0%90．6%。EGSBCOD、、SCN－NH3－N。EGSBCOD、、SCN－NH3－N86．0%。31EGSBCOD、、SCN－62．8%62．6%6．8%78．0%77．7%96．7%86．4%80．6%NH3－N27．4%－35．0%。2EGSBCOD、、SCN－NH3－N。Ｒ1+Ｒ2HＲT12+12hCOD、、SCN－、NH3－N87．0%99．9%92．0%90．6%86．0%239．40．312．50．064．9mg/L。1LiYMGuGWZhaoJFetal．Treatmentofcoke-plantwastewaterbybiofilmsystemsforremovalofor-ganiccompoundsandnitrogenJ．Chemosphere200352997－1005．2．AOOAOJ．2012．43155－57．LiuWeiYouHaiYaoManetal．ComparisonofAOandOAOprocessesoncokingeffluenttreatmenteffectJ．FuelandChemicalProcesses201243155－57．3ZhaoWTHuangXLeeDJ．Enhancedtreatmentofcokeplantwastewaterusingananaerobic-anoxic-oxicmembranebioreactorsystemJ．SeparationandPurifi-cationTechnology200966279－286．077192－4ChanYJChongMFLawCLetal．Areviewonan-aerobic-aerobictreatmentofindustrialandmunicipalwastewaterJ．ChemicalEngineeringJournal20091551－18．5．EGSBJ．20113711107－110．ZhangQiDongChunjuanWangZengzhangetal．EGSBreactorremovingvolatilephenolofcokingwastewaterundermicro-aerobicconditionsJ．Tech-nologyofWaterTreatment20013711107－110．6．EGSBJ．2011352284－288．DongChun