改性填料强化A2O工艺处理低温市政污水效果的研究赵勇

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INDUSTRIALWATER&WASTEWATERVol.41No.6Dec.,2010A2/O,,(,214214)、,,,[1]。,[2]。,,,,[3]。(HRT)、、[4]。,。,,[5-6]。A2/O,,。11.1,,1。,、、:,A2/OCODCr。,10~12℃,CODCr、91.3%、99.6%79.7%,GB18918—2002《》A。:A2/O;;;:X799.3;X703.1:A:%1009-2455(2010)06-0052-03TreatmentoflowtemperaturemunicipalwastewaterbymodifiedfillerenhancedA2/OprocessZHAOYong,GUOZhi-tao,ZHANGDong-hua(JiangsuYulongEnvironmentprotectionCo.,Ltd.,Yixing214214,China)Abstract:ForthepurposeofenhancingthenitrogenremovalandCODCrdegradationabilityofA2/Oprocessunderlowtemperature,modifiedfillerwasaddedintotheaerobictank.Theresultsshowedthat,inwinterseasonwithwatertemperatureof10-12℃,theremovalratesofCODCr,ammonianitrogenandtotalnitrogenwere91.3%,99.6%and79.7%respectively,theeffluentwaterqualitymetthespecificationforclassAgrade1inGB18918—2002Dischargestandardofpollutantsformunicipalwastewatertreatmentplant.Keywords:A2/O;modifiedfiller;lowtemperature;municipalwastewater:(10C26213200915):2010-09-28;:2010-10-19·52·1A2/OFig.1FlowofmodifiedfillerenhancedA2/Oprocess2Fig.2Photoofmodifiedfiller2Tab.2Operatingconditionsofexperimentρ(DO)/(mg·L-1)ρ(DO)/(mg·L-1)ρ(DO)/(mg·L-1)pH/℃/h/%/%0~0.10.2~0.52.0~2.57.2~7.310~1213.570~100200~4003CODCrFig.3VariationofCODCrmassconcentration510152025303540ρ(CODCr)/(mg·L-1)10008006004002000ρ(CODCr)/(mg·L-1)20016012080400/(g·cm-3)/mm、>0.9625/mm/(m2·m-3)10>5001Tab.1Physicalpropertiesofmodifiedfiller,。,。。70cm×70cm×190cm,830L;70cm×210cm×190cm,2490L,3;210cm×140cm×190cm,4980L,,;。,20%,1,2。1.2,。CODCr、BOD5、TN、NH3-N569.5、320.7、72.3、48.2mg/L,pH7.2~7.3,10~12℃。1.3[7]。,CODCr、。2。1.42009-11-26~2010-01-27,38。CODCr、BOD5、[8]。DODO;pH;SEM。22.1CODCr3CODCr。CODCr300~850mg/L,569.5mg/L,91.3%,CODCr47.3mg/L。,,,,,。,,,,,,,,,,CODCr。,CODCrGB18918—2002《》A(50mg/L)。,,:A2/O·53·INDUSTRIALWATER&WASTEWATERVol.41No.6Dec.,20104Fig.4Variationofammonianitrogenmassconcentration510152025303540ρ(NH3-N)/(mg·L-1)806040200ρ(NH3-N)/(mg·L-1)151296305Fig.5VariationofTNmassconcentrationρ(TN)/(mg·L-1)1008060402005101520253035406SEMFig.6SEMphotosofbiofilm10μm2.230~70mg/L,48.2mg/L,,99.6%,0.3mg/L(4),GB18918—2002A(8mg/L)。,,,,,,。,,。,,,。,,,,。2.3,60~100mg/L,72.3mg/L,15mg/L(5),79.7%。GB18918—2002A。,、,,。,。,。2.4SEM6。,、、。,,,,,。3(1)A2/O,CODCr、GB18918—2002BA,0.3mg/L,A。(2),,。(3),A2/O,。,。:[1].[D].:,2007.[2],,.[J].,2009,29(2):10-14.(63)·54·:1Fig.1Start/StopofpumpcontroledbywaterlevelL5L1L2LSL3L4、、1、2、3ZCuZn16Si4。,,CFX,83.6%,ITT,CFX,85.7%。,,ITT,。4.3,PLC。64,2,42,,。L1,,,;L2,,,,;L3,,31。,,,L1。1。“”,PLC,7d,,()()。,“--”“”,,(56)。,,。4.4,《》,;,。5,,,,。6,,,。,,,,。:(1976-),,,,,()0319-2628736()xtgshjw@163.com。(54)!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!![3],,.[J].,2004,10(5):647-650.[4]./[D].:,2006.[5],,,.[J].,2008,24(12):47-49.[6]TongchaiSriwiriyarat,RandallCW.Evaluationofintegratedfixed-filmactivatedsludgewastewatertreatmentprocessesathighmeancellsresidencetimeandlowtemperatures[J].JournalofEnviron-mentalEngineering,2005,131(11):1550-1556.[7],,,.[J].(),2007,26(6):53-55.[8].(4)[M].:,2002.:(1968-),,,,,,()0510-87838628()sanyue11170618@163.com。·63·

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