单室微生物燃料电池产电与脱氮除磷的研究罗净净

36620166ActaScientiaeCircumstantiaeVol．36No．6Jun．2016No．2014ZB04No．21277052SupportedbytheFundoftheStateKeyLaboratoryofSubtropicalBuildingScienceNo．2014ZB04andtheNationalNaturalScienceFoundationofChinaNo．212770521989—[e-mail]*[e-mail]1989—[e-mail]*[e-mail]10．13671/j．hjkxxb．2015．0731．2016．J．3661955-1961LuoJJZhouSQXuMYetal．2016．Electricitygenerationandrecoveryofnitrogenandphosphorusinthesingle-chambermicrobialfuelcellJ．ActaScientiaeCircumstantiae3661955-1961112*111．5100062．5106412015-07-102015-10-292015-11-04MicrobialFuelCellMFC、．1000Ω371mV301．6mW·m－22．4A·m－2200Ω．4mmol·L－1．72h6hCOD、TNTP93．3%、19．7%44．8%．TNTP79．6%95．2%．MFC．0253-2468201606-1955-07X703AElectricitygenerationandrecoveryofnitrogenandphosphorusinthesingle-chambermicrobialfuelcellLUOJingjing1ZHOUShaoqi12*XUMingyi1TAOQinqin11．SchoolofEnvironmentandEnergySouthChinaUniverisityofTechnologyGuangzhou5100062．StateKeyLaboratoryofSubtropicalBuildingScienceSouthChinaUniverisityofTechnologyGuangzhou510641Ｒeceived10July2015receivedinrevisedform29October2015accepted4November2015AbstractAnair-cathodesingle-chambermicrobialfuelcellMFCwasinvestigatedtostudyitspowergenerationandtheremovaloforganicmattersnitrogenandphosphorusinthesimulatedwastewater．Withanexternalresistorof1000ΩthemaximumvoltageoftheMFCreached371mV．Besidesitsmaximumpowerdensityandmaximumcurrentdensitywere301．6mW·m－2and2．4A·m－2．TheinternalresistanceoftheMFCwasabout200Ωfromthetest．TheMFCgeneratedelectricitywellwhentheconcentrationoftheNH4Clwas4mmol·L－1．Alsothedegradationrateofpollutantswasmuchbetter．ItwasconcludedthattheoptimisticoperationtimeoftheMFCwas72handthebestaerationtimeoftheanolytewas6h．Thedegradationefficiencyofchemicaloxygendemandtotalnitrogenandtotalphosphorusoftheanodechambereffluentare93．3%19．7%and44．8%．Aftertheanolytewasaeratedtheremovalefficiencyofthetotalphosphorusandtotalnitrogenincreasedto79．6%and95．2%comparedwiththeanodechamberinfluent．MoreoverthroughscanningelectronmicroscopecapableofenergydispersivespectroscopySEM-EDSitwasobservedthatthesphericalbacteriaaccountedforthemainpartofthebacteriaintheanodechamber．AndtheneedlecrystalsofstruviteonthecathodeelectrodesurfaceoftheMFCwerealsoobserved．Keywordsnitrogensourcephosphorusremovalelectricityproductionsimulatedwastewater1Introduction．、、．Cordelletal．20093650～100．Shuetal．2006100m31kg6．3tP2O5．．MFC．2013MFC2MFC．MFC2013MFC119．6mVCOD82．4%MFC40d85%MFC．2013182．5mV10dCOD96．5%16d93．5%96．7%MFC．Ichihashi2012MFCCOD．Zang2012MFC．MFC．MFCN、PCOD、NH4ClMFCMFC．2Materialsandmethods2．1MFCMFCLiu20041a3cm4cm28mL．MFC2h．MFC7cm230%PTFE460%PTFE0．5mg·cm－2．1000Ω．MFC1b．1abFig．1SchematicofsinglechamberMFCaandaerationdeviceb2．2．1∶1．5．96g·L－1NaHCO3、1．00g·L－1NaC2H3O2、0．54g·L－1KH2PO40．21g·L－1NH4ClpH7．0．30±1℃．2．3MFCKeithleyM27002002pHpHPHS-25CODTPNO－3-N、NO－2-NNH+4-N、N-1--3．UV2800Merlin．659163Ｒesultsandanalysis3．1MFC10dMFC72h50mV371mV．MFC0～9999Ω50～5000Ω．II=U/ＲPP=U×I/AUVＲΩAm2．2MFC．301．6mW·m－2MFC200Ω．2MFC、Fig．2SchematicofelectricityproductioncellpolarizationcurvesandpowerdensitycurvesoftheMFC3．2MFC．3a、3b．MFC6h3c、3dMFC．、3e3f．Mg2++NH+4+PO3－4+6H2O=MgNH4PO4·6H2O．．Doyle2002pHpHMgNH4PO4·6H2OpH8．3gCusick20123gMg、PNMgNH4PO4·6H2O．7591363Fig．3SEM-EDSimages3．3MFC4mmol·L－1NH4Cl．1、2、48mmol·L－1NH4ClMFCMFC310d4．4NH4ClMFCNH4Cl326、350、371307mV．NH4ClMFCNH4Cl2011．NH4Cl4mmol·L－1371mV．201250mg·L－1．NH4Cl8mmol·L－1112mg·L－1MFC307mV．859164NH4ClFig．4EffectonpowergenerationwithdifferentNH4Clconcentration3．4MFCCOD3．4．1MFCCOD30℃MFC6dCODCOD5．MFC72hCOD79．9%．MFC50mVCOD66mg·L－1MFC7mVCOD93．3%2014MFCCOD100mg·L－1．5MFCCODFig．5SchematicoftheconcentrationofCODalongwiththeoperationtimeoftheMFC3．4．2MFC4mmol·L－1NH4Cl11TP、NO－3-N、NO－2-NNH+4-N．196hTN20%MFCNH+4-N．TP72h45%96h20mVTP35．4%．．1MFCTable1Effectontheremovalofnitrogenandphosphoruswithdifferentoperationtimet/hNO－3-N/mg·L－1NO－2-N/mg·L－1NH+4-N/mg·L－1TNTP/mg·L－1TP240．02≈0．0046．916．0%115．27．1%480．300．114911．8%100．419．0%720．810．2746．612．1%68．444．8%961．031．5643．919．7%80．0935．4%3．5MFCMFC72h50mVMFCpH7．3TNTP50%．TNTPMFCDO2．8～3．5mg·L－18h1hTPpH6．9591366TPpHFig．6DiagramofthechangeofTPnitrogenandpH6hTN79．6%TP95．2%．6pH9．17．NO－3-NNO－2-NNH+4-N38mg·L－12mg·L－1TP65．8mg·L－15．9mg·L－1．6hTP．DO2011．．NH+4-N2012NH+4-N．6h．MFC6h．4ConclusionsMFC4mmol·L－1．MFC72h．MFCCOD19．7%．95．2%79．6%．MFC．ＲeferencesCordellDDrangertJOWhiteS．2009．ThestoryofphosphorusGlobalfoodsecurityandfoodforthoughtJ．GlobalEnvironmentalChange192292-305CusickＲDLoganBE．2012．PhosphaterecoveryasstruvitewithinasinglechambermicrobialelectrolysiscellJ．BioresourceTechnology1072110-115DoyleJDParsonsSA．2002．StruviteformationcontrolandrecoveryJ．WaterＲesearch36163925-3940IchihashiOHirookaK．2012．ＲemovalandrecoveryofphosphorusasstruvitefromswinewastewaterusingmicrobialfuelcellJ．BioresourceTechnology114303-307LiuHLoganBE．2004．Electricitygenerationusinganair-cathodesinglechambermicrobialfuelcellinthepresenceandabsenceofaprotonexchangemembraneJ．EnvironmentalScience＆Technology38144040-4046．2011．DOJ．43442-46．2012．J．351111-114．2013．CODJ