含氨氮有机物和重金属离子的废水处理试验与设计

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林敏清刘航(金川公司镍钴研究设计院,甘肃金昌737100)[],NH3-N;Co2+Ni2+;,CODNH3-N10015mg/L;Co2+Ni2+1mg/L[];A2/O;;;[]TQ085[]B[]1008-5122(2009)06-0044-05ExperimentandDesignonWasteWaterContainingHeavyMetalIonandAmmoniaHydrogenOrganicsLINMin-qing,LIUHangAbstract:Throughsiteexperimentonwastewatercontainingheavymetalionandammoniahydrogenandorganics,thetreatmentprocessonsuchwastewaterisdetermined.AftertwostagesofNH3-Nre-movalbyblowingandtwoprocessingstepsofCo2+Ni2+heavymetalrecoverythroughsedimentationwithflocculation,biochemicalcombinationsofhypoxiaandaerobian,biologicalaeratedfilter(BAF),zeolitefiltration,etc.TheconcentrationsofCODandNH3-Ninprocessedwastewaterbecomelessthan100and15mg/Lrespectively,andionconcentrationofheavymetalislessthan1mg/L.Keywords:Ammonia-hydrogenremovalbyblowing;combinedbiochemicalA2/O;sedimentationwithflocculation;sandleach;zeolitefiltration[]2009-05-31[](1969-),,,,,0(1000~1200mg/L),(COD400~500mg/L),Co2+(150mg/L)Ni2+,,(GB89781996),111200m3/d60m3/d,140m3/d,400m3/d12,1441mg/LCODcr2310003945400~500100BOD55002327200~30020SS594500~6007010004721000~12001501901~0215013020104210004~371015010080~150100210002~35055010040~75100331001~0420pH10~116~96~92~56~96~9/4030~4030:COD;BOD;A2/O;SS1221211,,,pH,pH,;pH,,pH9,PbZnCuNiCo,CdpH10,,212,,,,,,pHH2S,H2S,213,,,,,,,,,214,,,,,,215,,,452009126,pH,,,pH,Co2+Ni2+Ni3+,pHCo2+Ni2+Ni3+,22NH3-NNH3-N,221NH3-NpH,pH11,NH3,pHNH4+pH11,,22kg/kg/kPa0203050013022008500430660570337024701461013308805150400024420265162081206320389,,,;,222(),,,,(),223,,,224(A2/O)(),(),COD,,,pH75~9,,,200mg/L,,,80%,200mg/L,,,23CODcrBOD5,;,,BOD5/CODcr,03,045,BOD5/CODcr045,NH3-N,C/N,,P384CODcr060g,BOD5053g,(A2/O),,+46331311,10L,NaOHpH115,15%20mL,01%PAM10mL,2h,33,pH=115Co,,NH3CoNH33mg/LpHCo()Co()07-2411501619607-2511501400707-2611501500607-2711502402107-28115009006312300mL13%NaOH,pH90100110320%10mL,05PAMZ325k15mL,Ni2+600mg/L,pH=9001000,,pH=110,,44/mL13%NaOH/mLpH05PAMpHNi2+/mgL-1Ni2+/mgL-130014611315mLZ325k10660014030014511015mLZ325k10460015030015011615mLZ325k107600008pH,pH11590,pH115,pH90,,32,:NH+4+OH-NH3+H2O,pH11,90%NH3,,,,,200L,NH3-N15g/L,600mm,1m,07m,pH=13,,401,11,,NH3NH3NH+4pHpH,200mg/L133,Ni,1mg/L20079,80L/hNH3-N200mg/L141211,,472009126,15NH3-N200mg/L,NH3-N8~10mg/L,95%,COD90%,55,NH3-NCODcr,,NH3-N,,5NH3-NCODcr/mgL-1/mgL-1/%/mgL-1/mgL-1/%/12045815649307986087608903002202211436930845608560900310319688152592090840992089030041980517209108924095209002905202451060948906248520908330620245950950905128036911330720158876956879108078908335819843852957900808220905332919756800957902307990906340102005082095890090785090635024,,,:pHCoCr,pH,,pH,pHNi,,,22007,2008,,,NH3,,,5(1),pH(2),,pH11,(3)pH,pH[][1].[M].:,2003.[2],,,.[M].:,2003.[3],,.[M].:,2006.48

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