搜索
51%COD、91%、78%“”[1]。14.4Mt·d-1[2-3]。。MFC。2.15kW·m-3[4]。MFC。MFC。、、[5-6]。MFC、、、、、[8-16]。MFC。“”SCMFCCOD、、、。11.11MFC8cm、8cm1Fig.1SchematicdiagramoftheSCMFC111231.7100552.7210003.710055“”SCMFCCOD200、300、500、800、1000mg·L-180、200、600、1000Ω20℃35℃SCMFC。CODSCMFCCODCOD1000mg·L-1SCMFC109mW·m-2COD20℃65mW·m-235℃106mW·m-238.7%SCMFCSCMFC。SCMFC。X799.3A1000-3770(2011)12-0094-0052011-04-12NCET-07-0659“”IPT08531985－13991254113E-maildingqing1209@163.comE-mailyuanlinjiang@xauat.edu.cn3712201112TECHNOLOGYOFWATERTREATMENTVol.37No.12Dec.,201194DOI:10.16796/j.cnki.1000-3770.2011.12.023402.4mL。E-TEK50cm2Nafion117CS0.5mg·cm-212.56cm2。2cm。MFC。1.2。UASB。35℃。1。0.230g·L-1、0.213g·L-1、0.311g·L-1、0.210g·L-1、12.5mL·L-1、5mL·L-1COD800mg·L-1。pH50mmol·L-1PBS。1。pHNaH2PO4·2H2O2.772g·L-1Na2HPO4·12H2O11.542g·L-1。1.3VC9806+0.5h·-1Ag/AgClLSV[14]。MLSSMLVSSGB11901－89CODGB11914－89GB7479－87TNGB11894－89[18-20]。PP=IU/A1IUA。Qp2Qp=t0乙Idt2t。Qt3Qt=Fb(CODt-COD0)V/M(O2)3F96485C·mol-1bO2=4COD0CODtCODVM(O2)O232g·mol-1。4Ec=Qp/Qt。422.1SCMFC、。50～90×103Ω2SCMFC2。2SCMFC120mW·m-2190.5Ω100%SCMFC106mW·m-2180Ω。SCMFCMFC。。COD、、pH、88.3%SCMFC。2.2JungReaKimMFCpHNH4+NH3NH4+-NTNSS1Tab.1RawwaterqualitypHCOD/mg·L-1ρ/mg·L-17.3～8.6255～117018～13049.2～190.7121～84622SCMFCFig.2Polarizationcurvesoftwodifferentsubstrates0.00.20.40.60.81.00204060801001200100200300400500U/mVP/mW m J/A m 95[21]。MFCpHMFC。MFC。27.60、43.44、89.63、103.4mg·L-1。3200ΩSCMFC。316mV16.9%。。118～130mg·L-1SCMFC。2.3COD5COD1004±34、799±17、500±22、310±6、190±11mg·L-1600ΩCOD。pH50mmol·L-1PBS。2。2CODCODCODCOD。COD255～1170mg·L-11CODSCMFC。COD、、、4COD23。23CODCOD。COD。CODMFC。2.4SCMFCSCMFC。80、200、600、1000ΩSCMFC45。454Fig.4Thestatusofcurrentatdifferentexternalloadings02550751001251500.00.20.40.60.81.01.2I/mV t/h COD/%Pmax/mW·m-2Ec/%3CODTab.3PowergenerationatdifferentCODconcentrationsCOD/mg·L-1200300500800100056.4568.3370.3275.2977.8770±277±1100±7106±2109±48.07.56.03.73.83Fig.3Theeffectofammoniumconcentrationonpowergeneration01020304050600255075100125150175200U/mV t/h1004±34799.2±17500±22310±6190±11237.4±2233.2±2225.6±3211.2±1204.7±1144969683722CODTab.2VoltageoutputatdifferentCODconcentrationsCOD/mg·L-1/hUmax/mV371296。200Ω180Ω106±2mW·m-2。1000Ω。200Ω80ΩSCMFC。4。4COD。COD。SCMFCNH4+。。。2.5。SCMFC65。635℃20℃106mW·m-265mW·m-238.7%COD75.29%65.83%。5。20℃。SCMFC。3“”MFC70±2～109±4mW·m-2COD50%SCMFC。SCMFCCOD190～1000mg·L-1MFC。1000Ω80Ω。SCMFC。SCMFC。5Fig.5Thestatusofpoweroutputatdifferentexternalloadings0255075100125150020406080100120P/mW m t/h NH4+-NTN4Tab.4TheremovalrateandEcofblackwateratdifferentcircuitresistorsR/Ω80200600100071.2069.8975.2978.2439.937.310.96.8033.430.910.16.8010.97.203.703.50Ec/%/%COD620℃35℃SCMFCFig.6Polarizationcurvesatdifferenttemperaturesof20℃and35℃0.00.20.40.60.81.01.2020406080100120P/mW m J/A m 203565.8275.29226180651064.23.75Tab.5Comparisonofpoweroutputatdifferenttemperaturesθ/℃COD%r/ΩPmax/mW·m-2Ec/%97ELECTRICITYPRODUCTIONOFSINGLECHAMBERMICROBIALFUELCELLTREATINGBLACKWATERDingQing1,YuanLinjiang1,ZhaoBingliang1,QiangLin2,DongSheying3(1.KeyLaboratoryofNorthwestWaterResourcesEnvironmentandEcologyofMinistryofEducation,Xi'anUniversityofArchitectureandTechnology,Xi'an710055,China;2.BaoJiEnvironmentalMonitoringStation,BaoJi721000,China;3.CollegeofSciences,Xi'anUniversityofArchitectureandTechnology,Xi'an710055,China)Abstract:ElectricitygenerationinaSCMFCfedwithblackwaterwasinvestigated.Poweroutputandutilizationofsubstratesweremonitoredandanalyzedonthefollowingconditions:influentconcentration(COD)at200,300,500,800and1000mg·L-1ofblackwaterandcircuitresistorat800,200,600,and1000Ω,andalsowithtwodifferenttemperatures(20℃,35℃).Theresultsshowedthatthepowerdensitywaspromoted,thecyclesofelectricitygenerationwasprolonged,CODremovalefficiencywasincreasedandCEwasdeclinedwithincreasingofsubstrateconcentration.Amaximumpowerdensityof109mW·m-2wasachievedattheblackwaterconcentrationof1000mg·L-1.Moreover,thecircuitcurrentdensityincreasedthecyclesofelectricitygenerationwasshortened,theeffluentCODremovalratebecamehigher,andtheCEofMFCsystemwasimprovedwhenresistancedecreased.Thisindicatedthattheutilizationefficiencyofsubstrateswasincreased.Inaddition,themaximumpowerdensitywas65mW·m-2withthetemperatureconditionat20℃,whichis38.7%lowerthanthatatthesituationof35℃(106mW·m-2).Otherwisethehighconcentrationofammoniumdidnotaffectthepoweroutput.ThisillustratedthatthetechnologyofMFCsweresuitableforthetreatmentofblackwater.Keywords:SCMFC;blackwater;circuitresistor;temperature[1]SariLuostarinen,WendySanders,GrietjeZeeman,etal.EffectoftemperatureonanaerobictreatmentofblackwaterinUASB-septictanksystems[J].BioresourceTechnology,2007,98:980-986.[2],.[J].,2000,8(1):14-16.[3],,.[J].2008,26(5):9-13.[4]NevinKP,RichterH,CovallaSF,etal.PoweroutputandcolumbicefficienciesfrombiofilmsofGeobactersulfurreducenscomparabletomixedcommunitymicrobialfuelcells[J].EnvironMicrobiol,2008,10(10):2505-2514.[5]JungRaekim,SokHeeJung,JohnMRegan,etal.Electricitygenerationandmicrobi