不同共基质条件下上流式厌氧污泥床反应器中硝基酚的降解研究姜丽娜

,＊,,,(,　266100):2UASB,3-(3-NP)2,6-(2,6-DNP).,3-NP,;2,6-DNP,.3-NP,COD2500mgL,HRT26h,,3-NP254.6mgL,3-NP99.0%;,HRT30h,3-NP71.6mgL,3-NP90.0%.2,6-DNP,COD2500mgL,HRT35h,,2,6-DNP170.0mgL,2,6-DNP98.0%;,HRT30h,2,6-DNP189.5mgL,2,6-DNP99.2%.:UASB;3-;2,6-;:X703.1　:A　:0250-3301(2007)10-2230-06:2006-11-09;:2007-01-13:(20307009):(1981～),,,,E-mail:[e-mail]＊,E-mail:[e-mail]-substratesonDegradationofNitrophenolsUsingUpflowAnaerobicSludgeBed(UASB)ReactorsJIANGLi-na,SHEZong-lian,JINChun-ji,WANGLei,YUJing(KeyLaboratoryofMarineEnvironmentalScienceandEcology,MinistryofEducation,CollegeofEnvironmentalScienceandEngineering,OceanUniversityofChina,Qingdao266100,China)Abstract:Theremovalefficienciesof3-nitrophenol(3-NP)and2,6-dinitrophnol(2,6-DNP)wereinvestigatedintwolab-scaleupflowanaerobicsludgebed(UASB)reactorsusingtwodifferentco-substrates.Initially,glucosewasusedasco-substrateandfollowedbysodiumacetate.Theresultsshowedthatglucosewasfoundtobeabetterco-substratefor3-NPdegradationcomparedtosodiumacetate.Whileforthedegradationof2,6-dinitrophenol,sodiumacetatewasbetter.Forthestudyof3-NPdegradation,inputCODconcentrationwaskeptas2500mgLandhydraulicretentiontime(HRT)waskeptas26hwithglucoseasco-substrate.Maximum3-NPconcentrationwas254.6mgLand3-NPremovalefficiencieswerealwaysmorethan99.0%.WhileHRTwas30hwithsodiumacetateasco-substrate,maximum3-NPconcentrationwas71.6mgLandover90.0%3-NPremovalefficienciescouldbeobtained.Forthestudyof2,6-DNPdegradation,HRTwas35husingthesameinputCODconcentrationas3-NPdegradation.Themaximum2,6-DNPconcentrationwas170.0mgLand2,6-DNPremovalefficiencieswerealwaysmorethan98.0%usingglucoseasco-substrate.WhileHRTwas30hwithsodiumacetateasco-substrate,maximum2,6-DNPconcentrationwas189.5mgLandover99.2%2,6-DNPremovalefficienciescouldbeobtained.Keywords:UASB;3-nitrophenol;2,6-dinitrophenol;co-substrates　　、、、[1],,,.,.2-(2-NP)、4-(4-NP)2,4-(2,4-DNP),[2～4];Mohammad[5～7],:2,4-DNP4-NP2-NP3-NP.,Ozlem[4,8,9]、(ABR)2-NP、4-NP2,4-DNP;Karim[10～13](UASB),2-NP、4-NP2,4-DNP;Delia[14]4-NP(AMBR)(CSTR);[15]UASB3-NP。,2-NP、3-NP4-NP86.0%,2,4-DNP,,68.0%～89.7%.,2810200710　　　　　　ENVIRONMENTALSCIENCEVol.28,No.10Oct.,2007DOI:10.13227/j.hjkx.2007.10.014,[16～18].Karim[19]、,2-NP、4-NP2,4-DNPUASB,4-NP2,4-DNP,2;2-NP.,,2-NP、4-NP2,4-DNP,3-NP[15],2,6-DNP。3-NP2,6-DNP,””[12],2,19892-NP455～4086t,4-NP2.088t[20],19773-NP373t[21].Luan[22],6740.0mgL,2,6-(2,6-DNP)388.5mgL;3-NP,[22,23].,UASB3-NP2,6-DNP.1　1.1　UASB,12L,1.18m,5,4、20.5、40.5、6595.5cm(1).35℃±1℃.1　UASBFig.1　SchematicdiagramoftheUASBreactor　1.2　,3-NP2,6-DNP、、(COD∶N∶P=200∶5∶1).,.1.3　1.3.1　,UASB,,COD2000mgL,3.,ABR,UASB,,COD2500mgL,pH、COD、VFA、,1,COD95.0%.1.3.2　3-NP,COD2500mgL,HRT26h,3-NP20、30、50、100、160、200250mgL.,COD2500mgL,HRT30h,3-NP90mgL,.1.3.3　2,6-DNP,COD2500mgL,HRT35h,2,6-DNP5、15、30、40、60、100、140、170200mgL.,COD2500mgL,HRT30h,2,6-DNP20、40、60、80、100、120、140、150、170、190200mgL.3-NP2,6-DNP10d,1.1.4　COD[24];SS、VSS、(VFA)、、[25];pHpHS-2C;[26,27];3-NP2,6-DNP.pH1d1,2d1.223110:2　2.1　3-NP,3-NP20mgL254.6mgL,COD80.0%,3-NP99.0%,3-AP3-NP(2);3-NP,3-AP62.3%111.9%.,3-NP20mgL71.6mgL,COD89.2%,3-NP94.0%;3-NP93.5mgL,COD65.7%,3-NP97.0%;3-AP3-NP(3);3-NP,3-AP88.7%17.9%,3-NP,3-NP,3-AP,3-AP,3-AP3-AP.,3-NP3-AP194℃164℃,3-NP3-AP,3-NP,3-NP.,3-NP,3-AP.2　3-NPFig.2　Effectsofdegradationof3-NPusingglucoseasco-substrate　、3-NP,3-NP3-AP1.40.5cm3-NP,99.9%,3-NP3　3-NPFig.3　Effectsofdegradationof3-NPusingsodiumacetateasco-substrate　1.0mgL.3-NP,3-AP;3-NP,3-AP,3-NP3-AP,3-AP.、3-NP,3-NP3-AP2.40.5cm3-NP87.5%(),95.5cm3-NP95.7%.3-AP3-NP;3-NP,3-NP,3-AP,3-AP,3-AP,3-NP.2.2　2,6-DNP,2,6-DNP,2,6-DNP4.1mgL,2,6-DNP,98.0%(,,2,6-DNP215℃,,2,6-DNP,2,6-DNP).,2,6-DNP170.0mgL;,2,6-DNP189.5mgL(45).2,6-DNP≤170.0mgL,2.95.5cmCOD90.0%.2,6-DNP170.0～201.02232　　　　　　28　　　　　　4　2,6-DNPFig.4　Effectsofdegradationof2,6-DNPusingglucoseasco-substrate　mgL,.,2,6-DNP200.9mgL,2,6-DNP,,COD,95.5cmCOD55.8%(6).　　　　　　5　2,6-DNPFig.5　Effectsofdegradationof2,6-DNPusingsodiumacetateasco-substrate　2,6-DNP189.5mgL,95.5cmCOD84.9%,.,,2,6-DNP,2,6-DNP.1　3-NPmg·L-1Table1　Effectof3-NPdegradationindifferentsamplingportsusedglucoseasco-substratemg·L-13-NP3-NP3-AP4cm20.5cm40.5cm65cm95.5cm4cm20.5cm40.5cm65cm95.5cm61.90.00.00.00.00.022.421.122.625.426.593.40.00.00.00.00.042.644.945.046.846.8157.56.26.80.10.20.177.081.496.495.499.4220.80.00.00.00.00.0118.0148.4160.3157.8167.1247.26.80.50.10.20.3213.7214.3209.7209.7215.42　3-NPmg·L-1Table2　Effectof3-NPdegradationindifferentsamplingportsusedsodiumacetateasco-substratemg·L-13-NP3-NP3-AP4cm20.5cm40.5cm65cm95.5cm4cm20.5cm40.5cm65cm95.5cm27.56.95.42.00.70.44.96.013.411.95.736.133.926.421.21.70.62.15.410.520.311.354.226.127.16.820.83.26.37.418.322.571.637.218.04.53.03.05.219.120.526.624.793.551.423.20.80.50.25.115.318.621.216.1　　2,6-DNP21.3～189.5mgL,,20.5cm2,6-DNP98.6%;,95.5cm2,6-DNP97.5%,2,6-DNP.2,6-DNP200mgL,,20.5cm2,6-DNP84.6mgL,223310:　　　　　　,6　2,6-DNPCODFig.6　CODconcentrationofdifferentsamplingportsinhigherinput2,6-DNPconcentrationusingdifferentco-substrates,20.5cm2,6-DNP0.8mgL(3).,2,6-DNP,.3　(1)3-NP,;2,6-DNP,.(2)3-NP,COD25