Abstract
Wire Beam Electrode (WBE) made of Q235 carbon steel was applied to study the heterogeneous corrosion beneath biofilm formed by Sulfate Reducing Bacteria (SRB) in culture and sulfide film in solution with 1% NaCl and 300 mg/L S 2- . The potential,galvanic density mapping,as well as polarization curve and Electrochemical Impedance Spectrum (EIS) were measured to predict the localized corrosion under biofilm and sulfide film.As a result,the mapping showed the potential fluctuation on the WBE surface decreased over time due to the conductivity of the biofilm and sulfide film.Therefore,the potential mapping could not be a criterion of localized corrosion under biofilm.Instead,the current mapping could give a good prediction to the MIC.The sulfide film could inhibit corrosion of carbon steel.However,the biofilm accelerate the corrosion.Polarization resistance R p increased over time in the Na 2S solution if lack of O 2.In addition,the biofilm capacity moved up to a very large level (～10 5 μF/cm 2)in shape of Sigmoid with its polarization resistance decreasing exponentially when SRB grew.
Keywords
Biofilm, SRB, Carbon Steel, Wire Beam Electrode, Mapping, EIS
Publication Date
2001-05-28
Online Available Date
2001-05-28
Revised Date
2001-05-28
Received Date
2001-05-28
Recommended Citation
Ze-hua DONG, Xing-peng GUO, Jia-shen ZHENG, Li-ming XU.
Electrochemistry Characteristic of Carbon Steel under Biofilm and Sulfide Film[J]. Journal of Electrochemistry,
2001
,
7(2): Article 10.
DOI: 10.61558/2993-074X.3248
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol7/iss2/10
References
[1] LeeW ,CharacklisWG .Corrosionofmildsteelunderanaerobicbiofilm[J].Corrosion ,1993,4 9(3) :186～199.
[2 ] SoebbingJohnB ,YoloRogerA .Microbiologicallyinfluencedcorrosioninwastewatertreatmentplants[J].Ma terialsPerformance ,1996 ,35(9) :4 1～ 4 8.
[3] FranklimMichaelJ ,WhiteDavidC ,IsaacsHughS .Pittingcorrosionbybacteriaoncarbonsteel,determinedbythescanningvibratingelectrodetechnique[J].CorrosionScience ,1991,32 (9) :94 5～ 952 .
[4 ] MansfeldFlorian .EvaluationofMICanditsInhibitionwithElectrochemicalImpedanceSpectroscopyandElectrochemicalNoiseAnalysis .2 0 0 0 ,The 2 ndinternationalproceedinginoceancorrosion[C].Qingdao ,China .
[5] HuangHH ,TsaiWT ,LeeJT .EletrochemicalbehaviorofA516carbonsteelinsolutionscontaininghydrogensulfide[J].Corrosion ,1996 ,52 (9) :70 8～ 713.
[6 ] NewmanRC ,RumashK ,WebsterBJ.Effectofpre_corrosiononthecorrosionrateofsteelinneutralsolutionscontainingsulfide :relevancetomicrobiallyinfluencedcorrosion[J].Information&Management,1992 ,2 3(5) :1877～ 1884 .
[7] VedageH ,RamanarayananTA ,MumfordJD .ElectrochemicalgrowthofironsulfidefilmsinH2 S_saturatedchloridemedia[J].Corrosion ,1993,4 9(2 ) :114～ 12 1.
[8] MaHouyi,ChengXiaoliang ,LiGuiqiu .Influenceofhydrogensulfideoncorrosionofironunderdifferentcondi tions[J].CorrosionScience ,2 0 0 0 ,4 2 (10 ) :16 6 9～ 16 83.
[9] TanYJ.Monitoringlocalizedcorrosionprocessesandestimatinglocalizedcorrosionratesusingawirebeamelectrode[J].Corrosion ,1998,54(5) :4 0 3～ 4 13.
[10 ] TanYong_Jun .Wirebeamelectrode :anewtoolforstudyinglocalizedcorrosionandotherheterogeneouselec trochemicalprocesses[J].CorrosionScience ,1999,4 1(2 ) :2 2 9～ 2 4 7.
[11] FranklinMJ ,NivensDE ,GuckertJB .Effectofelectrochemicalimpedancespectroscopyonmicrobialbiofilmscellnumbers ,viabilityandactivity[J].Corrosion ,1991,4 7(7) :519～ 52 2 .
[12 ] H .vonRLgeandW .S :Mini_PlantforSimulationofMetalCorrosionandBiofoulingforEvaluationofCoun termeasures,1999,Corrosion’99,PaperNo .30 6 .NACE ,Houston ,TX .
[13] FerrerIJ ,CaballeroF ,DelasHerasC .Preparationofn_typedopedFeS2 thinfilms[J].SolidStateCommuni cations ,1994 ,89(4) :349～ 352 .
[14] MacdonaldDD .TechniquesforCharacteristicofElectrodesandElectrochemicalProcess[M ].NewYork :JohnWiley&Sons ,1991
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