Phosphorous Requirements in a Post Denitrification

Phosphorous Requirements in a Post Denitrification MBBR at a Combined Limit of Technology Nitrogen and Phosphorous PlantPhosphorousRequirementsinaPostDenitrificationMBBRataCombinedLimitOfTechnologyNitrogenandPhosphorousPlantMarijaPeric1*,DilliNeupane1,BeverleyStinson1,EdwardLocke1,SalilKharkar2,NicholasPassarelli2,MartinSultan2,GeorgeShih2,SudhirMurthy2,WalterBailey2,JohnCarr2,RoubenDerMinassian21AECOMWater,14504GreenviewDrive,Suite400,Laurel,MD,20708(*marija.peric@aecom.com)2DCWASA,5000OverlookAvenueSW,WashingtonDC,20032ABSTRACTAMovingBedBiofilmReactor(MBBR)postdenitrificationpilotwasimplementedattheBluePlainsAdvancedWastewaterTreatmentPlant(AWTP).Theobjectivewastoassesstheimpactofphosphorus(P)onthedenitrificationprocessandcomplianceriskrelatedtotheeffluenttotalphosphoruslimitof0.18mg/L.TheMBBRPrequirementswereassessedduringbothwarm(22°C)andcold(13°C)operatingconditions.Plimitationimpactswerenotobservedduringsteadystatewarmtemperatureoperations,evenafterfourweeksbutwereobservedimmedia