Design and Operating Considerations for a Post Den

Design and Operating Considerations for a Post Denitrification MBBRDesignandOperatingConsiderationsforaPostDenitrificationMBBRtoAchieveLimitofTechnologyEffluentNOx<1mg/landeffluentTP<0.18mg/lB.Stinson1,M.Peric1,D.Neupane1,M.Laquidara1,E.Locke1,S.Murthy2,W.Bailey2,S.Kharkar2,N.Passarelli2,R.Derminassian2,J.Carr2,M.Sultan2,G.Shih2J.Barnard3,G.Daigger3,D.Parker3,C.Randall3,T.Wilson31Metcalf&Eddy,14504GreenviewDrive,Suite400,Laurel,MD,207082DCWASA,5000OverlookAvenueSW,WashingtonDC,200323ExpertTechnicalAdvisoryPanel(InAlphabeticalOrder)Black&Veatch,CH2MHill,Brown&Caldwell,VirginiaTech.,AECOMWaterAcknowledgmentto:BjornRustenandCharlesBott.AlsoIDItechnical&pilotsupportstaff.ABSTRACTDenitrifyingMovingBedBiofilmReactor(MBBR)technologyhasbeenattractingincreasinginterestoverthepastdecadebecauseofitsmechanicalsimplicity,easeofmaintenanceandreportedlyreliablenutrientremovalperformanceevenundercoldwetweatheroperatingconditions.Thistechnologyhasnothoweverbeendemonstratedtobecapableofconsistentlyachie