适当的Fe（II）添加通过提高细菌生长速率显着增强了厌氧铵氧化（Anammox）活性

AppropriateFe(II)AdditionSignificantlyEnhancesAnaerobicAmmoniumOxidation(Anammox)ActivitythroughImprovingtheBacterialGrowthRateYiwenLiu&Bing-JieNiAdvancedWaterManagementCentre,TheUniversityofQueensland,StLucia,Brisbane,Queensland4072,Australia.Theapplicationofanaerobicammoniumoxidation(Anammox)processisoftenlimitedbytheslowgrowthrateofAnammoxbacteria.AstheessentialsubstrateelementthatrequiredforculturingAnammoxsludge,Fe(II)isexpectedtoaffectAnammoxbacterialgrowth.ThisworksystematicallystudiedtheeffectsofFe(II)additiononAnammoxactivitybasedonthekineticanalysisofspecificgrowthrateusingdatafrombatchtestswithanenrichedAnammoxsludgeatdifferentdosinglevels.ResultsclearlydemonstratedthatappropriateFe(II)dosing(i.e.,0.09mM)significantlyenhancedthespecificAnammoxgrowthrateupto0.172d21comparedto0.118d21atregularFe(II)level(0.03mM).TherelationshipbetweenFe(II)concentrationandspecificAnammoxgrowthratewasfoundtobewelldescribedbytypicalsubstrateinhibitionkinetics,whichwasintegratedintocurrently