己内酰胺生产废水处理工程的设计与运行

12111131．3004572．3004573．300453/+、300m3/d90dCOD、SS95%、89%87%《》DB12/356—2008。/X703．1C1000－4602201604－0087－04DesignandOperationofCaprolactamWastewaterTreatmentProjectWEIXiang12NINGLi-qun1LINYu-ke1CAOJing-guo1YANGZong-zheng1GAOXu31．CollegeofMarineandEnvironmentalSciencesTianjinUniversityofScienceandTechnologyTianjin300457China2．TianjinBinhaiNewAreaEnvironmentalProtectionMonitoringStationTianjin300457China3．TianjinNewBeitangConstructionGroupCo．Ltd．Tianjin300453ChinaAbstractThecombinedprocessofanoxic/oxicandbiologicalcontactoxidationwasusedtotreatchemicalfiberwastewatercontainingcaprolactamandammonianitrogen．Thedesigntreatmentcapacitywas300m3/dandthecombinedprocesswascontinuouslyoperatedfor90days．TheoperationresultsshowedthatwhenthefluctuationintheinfluentpollutantconcentrationwaslargetheremovalratesofCODammonianitrogenandSSreached95%89%and87%respectively．Theremovalrateswererel-ativelystable．TheeffluentqualitycouldmeetthethirdlevelcriteriaspecifiedintheIntegratedWastewaterDischargeStandardDB12/356－2008forTianjinCity．Keywordschemicalfiberwastewatercaprolactambiologicalcontactoxidationanoxic/oxicprocess。COD、、、。－6COD10000mg/L1A/O、SBＲ、2～4。A/OCOD、NH3－N56A/O7。·78·32420162CHINAWATEＲ＆WASTEWATEＲVol．32No．4Feb．2016COD89DOCODTN10。A/OA/ONH3－NBOD5。1－6。CO2、H2ONH311COD。300m3/d《》DB12/356—2008、1。1、Tab．1DesigninfluentandeffluentqualitypHCOD/mg·L－1BOD5/mg·L－1NH3－N/mg·L－1TN/mg·L－1SS/mg·L－16～9≤5000≤500≤50≤200≤5006～9≤500≤300≤35—≤4002A/O+1。ＰＡＭ、ＰＡＣ1Fig．1FlowchartofwastewatertreatmentprocessA/O。3①。0．8m3/m2·hB×L=1．8m×10．4m1．2m1．8h。②。2．0m×9．8m×6．4m5．5m8．6h。12．2kW1400mm55r/min1．32kN。③A/O。HＲT=13h96m32HＲT=49h348m381。0．3kgCOD/kgMLSS·d200%21．1kW。④。3．0m×3．0m×3．8m5．5h。⑤。21．6h154m35．0m。160m33．0m。72。⑥。HＲT=4min0．8m30．4m20．37kW。HＲT=40min1．2m。⑦。1．8m3/m2·h2．0m×2．0m。2Q=7m3/hH=100kPaN=0．55kW。4·88·324．watergasheat．com90d。4.1COD、COD2。600001713192531374349556167737985t/dCOD/(mg·Ｌ-1)1009080706050CODCODCOD/%500040003000200010002CODFig．2ConcentrationandremovalrateofCODduringoperation2CODCOD15dCOD39dCOD300%15dCOD210～495mg/L321mg/LCOD89%～95%。4.2NH3－N、3。1009080706050403001713192531374349556167737985t/d/(mg·Ｌ-1)10090807060504030/%20103NH3－NFig．3ConcentrationandremovalrateofNH3－Nduringoperation3NH3－NNH3－N20．6mg/LNH3－NNH3－NDO2．5～3．5mg/LCODC/N。NH3－N6．6～9．8mg/L84%～89%。4.3SS、SS4。80070060050040030020010001713192531374349556167737985t/dSS/(mg·Ｌ-1)10090807060504030SSSSSS/%4SSFig．4ConcentrationandremovalrateofSSduringoperationPAC/PAM12PAC/PAM10∶1SSSS62～86mg/L80%～87%。549520224845。758．92kW·h/d1．0/kW·h2．53/m30．12/m322000/0．44/m33．09/m3。6A/O+·98·．watergasheat．com324COD、SS94%、88%85%《》DB12/356—2008。1．J．2009351037－39．2．J．2011272085－87．3．J．201342121665－1667．4．/6J．2007235104－108．5LiYMCaoXZWangL．ElucidatingtheremovalmechanismofNN-dimethyldithiocarbamateinananae-robic-anoxic-oxicactivatedsludgesystemJ．JEnvironSci2014263566－574．6．A/OJ．201035782－84．7．UASB－A/O－J．201430288－91．8．J．201039626－28．9．J．201338561－63．10．J．201127722－25．11．J．200619228－32．12．PAC/PAMJ．20103711123－126．1985－。[e-mail]2015－08－03··《》2。Photoshop。[e-mail]“”。。022－27836225·09·324．watergasheat．com