亚硝酸盐抑制厌氧铵氧化的影响
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2019-12-28 12:26:48
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ENVIRONMENTALBIOTECHNOLOGYEffectsofnitriteinhibitiononanaerobicammoniumoxidationYuyaKimura&KazuichiIsaka&FutabaKazama&TatsuoSuminoReceived:17September2009/Revised:10November2009/Accepted:11November2009/Publishedonline:3December2009#Springer-Verlag2009AbstractInordertoassessthestabilityofnitrogenremovalsystemsutilizinganaerobicammoniumoxidation(anammox),itisnecessarytostudythetoxiceffectsofnitriteonthesebiochemicalreactions.Inthisstudy,theeffectsofnitriteonanammoxbacteriaentrappedingelcarrierswereinvestigatedusingbatchandcontinuousfeedingtests.Theresultsshowedthatthenitriteconcentra-tioninareactormustbelessthan274-mgN/Linordertopreventadecreaseintheanammoxactivity,whichoccurredwhenthegelcarriersweresoakedinnitritesolutionswithconcentrationsgreaterthan274-mgN/Linabatchtest.Inacontinuousfeedingtest,nitriteinhibitionwasnotobservedatlowconcentrationsofnitrite.However,theanammoxactivitydecreasedto10%whenthenitriteconcentrationincreasedto750-mgN/Lovera7-dayperiodinthereactor.Inad
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