pH值对猪粪废水微生物燃料电池产电性能的影响

1005-09302010s1-0001-009X703．1Adoi10．3969/j．issn．1005-0930．2010．s1．0012009-11-092010-01-182008BAD96B072009A0803030082009A080303005E090220．1986—[e-mail]1975—[e-mail]=10MFC2．10W/m3pH=6pH=82．71．9．pH=10COD86．7%92．8%pH=6pH=8MFCCOD13.8%6．7%5．3%3．5%．pH．pH、．、、．．——．．microbialfuelcellMFC1-2．MFC、3-4．MFC．MFC1820107JOURNALOFBASICSCIENCEANDENGINEERINGVol．18SupplementJuly2010．MFC15-7．LiuMFC8MFC．MFC9．、．MFC．10MFC．MFCMFC．MFCMFC．pH11-1213-14．Zhuang15pH=10MFCpH=7MFC2pH=10MFC．MFCpH．11．14℃．COD5905．0mg/LNH+4-N287．7mg/L3．9mS/cm．5g/LNaCl1mol/LNaOH1mol/LHClpHpH6、810．1．216AD82231—90000ΩZX219807AHPG-280H．1．3162min1．II=U/RRR=1000Ω．0—10000ΩMFCp=U2/R、P=IU/Ai=I/AA、．．η=CP/CT×100%CPCCP=∫IdtCTCCT=FbVΔCOD/32F96485C/molbCODCOD4molVLΔCODCODmg/L．CODDRB200HACHUSADR2700HACH2Vol．18USANH+4-N16．1．4CCA-MFC1Fig．1Photographsofclothcathodeassembly-microbialfuelcellCCA-MFC1．4．16．0g、1．5gMnO21．5ml1．5ml12-30minGORE-TEX187．5cm212．5cm×15cmMnO28mg/cm21a．1．4．2CCA-MFCPVC1b、1a．295ml17．0cm×13．0cm、1c．1．4．3CCA-MFC．30℃1．0MPa．1000Ω．162min1．．50mV．3CODNH+4-N．22．1CCA-MFCMFC．17．12．3．3SupplementpHCCA-MFC、、20．CCA．CCA-MFC、、．．CCA-MFCMFC———、、．2Fig．2Voltageoutputmeasuredatexternalresistanceof1000ΩinMFCusingswinewastewaterarrowheadindicatingsubstratereplacement2．2pH2pH=6、8、10．CCA-MFC．pH=10256mV．17．．11d445±20mV12d．50mV．4、、141d36d、28d、36d、41d．3、．11d15min．315min380mV．．MFCMFC．3530mV17d480mV．pH=6、8pH=10．4Vol．18．．pH=6、8、10361．1mV、411．2mV、476．2mV384．1mV、427．6mV、520．1mV380．4mV、425.9mV、529.8mV．pH．10000Ω10Ω3．pH=60．77W/m3pH=8、101.09W/m32．10W/m3pH=642．4%174．0%．pH=6、8、10pH．pH6、8、10pH．1pH3bpH=10pH=6、882—121mV13—108．6mV．pH3pH2abpH=6、8、10vs．Ag/AgCl3pH=6、8、10、vs．Ag/AgClFig．3Voltageopensymbolsandpowerdensitycurvefilledsymbolsnormalizedtotheliquidvolumeoftheanodechamberandelectrodepotentialsvs．Ag/AgClopensymbolsanodefilledsymbolscathodeasafunctionofcurrentdensity5SupplementpH．pH1013-14．pH=10．1pH=6、8、10270Ω、240Ω、190ΩpH=10．MFC9NaOHpH=10pH=8pH=10pH=8pH=6pH18．1pHMFC、Table1TheinternalresistanceopencircuitvoltageandthemaximumpowerdensityofMFCswithdifferentanodicpHpH/Ω/mV/W/m36270570．70．778240600．41．0910190616．32．104CODa、bFig．4TheconcentrationsofCODaandNH+4-Nbversusoperationtime2．3pH3CODNH+4-N．pH=6、8、10CODNH+4-N4．3pH=6、8、10CODNH+4-N1598、1181、783mg/L36、30．9、20．6mg/L．pH=10pH=8pH=6CODNH+4-N49．0%57．2%73.9%85．8%．pH=6、8、10COD72.9%、80.0%86．7%NH+4-N87．5%、89．3%92．8%．CODNH+4-N6Vol．18．pHCODNH+4-N．pH=6、8、10pHCODNH+4-N2．COD2．pH=6、8、105．4%、5．2%、7．8%．Liu193%—12%．MFC．123．20NaMoO42-21．2pHMFCCOD、Table．2RemovalrateoftheconcentrationsofCODandNH+4-NandcoulumbicefficienciesforMFCswithdifferentanodicpHpHCOD/%/%/%664．968．572．976．281．387．53．95．35．4874．577．680．084．487．289．33．95．25．01080．484．486．788．492．292．84．97．67．831CCA-MFC．CCA-MFCMnO2．MFC2pHCCA-MFC．pH=10CCA-MFC．2．10W/m3COD86．7%92．8%3MFCpHMFC．MFC．7SupplementpH1ParkDHZeikusJG．ImprovedfuelcellandelectrodedesignsforproducingelectricityfrommicrobialdegradationJ．BiotechnolBioeng2003813348-3552GilGCChangISKimBHetal．Operationalparametersaffectingtheperformanceofamediator-lessmicrobialfuelcellJ．BiosensBioelectron200318327-3343AhnYLoganBE．EffectivenessofdomesticwastewatertreatmentusingmicrobialfuelcellsatambientandmesophilictemperaturesJ．BioresTechnol20101012469-4754JiangJQZhaoQLWeiLQetal．ExtracellularbiologicalorganicmattersinmicrobialfuelcellusingsewagesludgeasfuelJ．WaterRes20104472163-21705ChengSLiuHLoganBE．IncreasedpowergenerationinacontinuousflowMFCwithadvectiveflowthroughtheporousanodeandreducedelectrodespacingJ．EnvironSciTechnol20064072426-24326OhSELoganBE．ProtonexchangemembraneandelectrodesurfaceareasasfactorsthataffectpowergenerationinmicrobialfuelcellsJ．ApplMicrobiolBiot2006702162-1697．J．200627112159-2163YouShijieZhaoQingliangJiangJunqiu．ElectrodeconfigurationasafactoraffectingelectricitygenerationinaircathodemicrobialfuelcellJ．EnvironmentScience200627112l59-2l638LiuHLoganBE．Electricitygenerationusinganair-cathodesinglechambermicrobialfuelcellinthepresenceandabsenceofaprotonexchangemembraneJ．EnvironSciTechnol200438144040-40469LoganBE．MicrobialFuelCellsM．NewYorkJohnWileyandSons200810ZhuangLZhouSG．Substratecross-conductioneffectontheperformanceofseriallyconnectedmicrobialfuelcellstackJ．ElectrochemCommun2009115937-94011HeZHuangYLManoharAKMansfeldF．EffectofelectrolytepHontherateoftheanodicandcathodicreactionsinanair-cathodemicrobialfuelcellJ．Bioelectrochemistry20082478-8212RaghavuluSVMohanSVGoudRKetal．EffectofanodicpHmicroenvironmentonmicrobialfuelcellMFCperformanceinconcurrencewithaeratedandferricyanidecatholytesJ．ElectrochemCommun200911371-37513CaiMLLiuJXWeiYSetal．EnhancedbiohydrogenproductionfromsewagesludgewithalkalinepretreatmentJ．EnvironSciTechnol2004383195-320214YuanHYChenYGZhangHXetal．Improvedbioproductionofshort-chainfattyacidsSCFAsfromexcesssludgeunderalkalineconditionsJ．EnvironSciTechnol2006402025-202915ZhuangLZhouSGLiYTetal．Enhancedperformanceofair-cathodetwo-chambermicrobialfuelcellswithhigh-pHanodeandlow-pHcathodeJ．BioresTechnol20101013514-351916AmericanPublicHealthAssociationAPHA．Sta