Demonstration of innovative MABR low-energy nutrie

Demonstration of innovative MABR low-energy nutrient removal technology at Chicago MWRDDemonstrationofinnovativeMABRlow-energynutrientremovaltechnologyatChicagoMWRDJ.Peetersa,*,N.Adamsa,Z.Longa,P.CôtébandT.KunetzcaSuezWaterTechnologies&Solutions,Oakville,CanadabCOTEMembraneSeparationLtd,Dundas,CanadacMetropolitanWaterReclamationDistrictofGreaterChicago,Chicago,USA*Correspondingauthor.E-mail:jeff.peeters@suez.comAbstractAninnovativeMABR(membrane-aeratedbiofilmreactor)membranetechnologywasdemonstratedattheO’BrienWaterReclamationPlant(OWRP)oftheMetropolitanWaterReclamationDistrictofGreaterChicago(ChicagoMWRD).Thedemonstrationunitwasequippedwithonefull-scalemembranecassette.Thetechnologywasevaluatedforitspotentialtoimproveperformancefortotalsuspendedsolids(TSS)andammoniaremovalduringstressedconditions(specificallycoldtemperaturepeakflowperiods)andtomeetfutureeffluentphosphorouslimits.Overaperiodof9months,theMABRoxygentransferratewasstableandrangedbetween8and12g-O2/d/m2ofmembranesurfacearea