6533b859fe1ef96bd12b76c3

RESEARCH PRODUCT

Greenhouse gas emissions and the links to plant performance in a fixed-film activated sludge membrane bioreactor - Pilot plant experimental evidence

Giorgio ManninaGustaf OlssonDaniele Di TrapaniMarco CapodiciAlida Cosenza

subject

Environmental Engineering0208 environmental biotechnologyMoving bed biofilm reactorBioengineeringWastewater treatment02 engineering and technology010501 environmental sciencesMembrane bioreactorWaste Disposal Fluid01 natural sciencesGreenhouse gas emissionBioreactorsGreenhouse gas emission; Membrane bioreactor; Moving bed biofilm reactor; Wastewater treatment; Bioengineering; Environmental Engineering; Mathematical modellingBioreactorWaste Management and DisposalEffluent0105 earth and related environmental sciencesSewageMathematical modellingSettore ICAR/03 - Ingegneria Sanitaria-AmbientaleRenewable Energy Sustainability and the EnvironmentMoving bed biofilm reactorMembrane foulingEnvironmental engineeringGeneral Medicine020801 environmental engineeringOxygenPilot plantActivated sludgeMembrane bioreactorEnvironmental scienceSewage treatment

description

The present study explores the interlinkages among the operational variables of a University of Cape Town (UCT) Integrated Fixed Film Activated Sludge (IFAS) membrane bioreactor (MBR) pilot plant. Specifically, dedicated experimental tests were carried out with the final aim to find-out a constitutive relationship among operational costs (OCs), effluent quality index (EQI), effluent fines (EF). Greenhouse gas (GHG) emissions were also included in the study. Results showed that the EQI increases at low flow rate likely due to the dissolved oxygen (DO) limitation in the biological processes. Direct GHGs increase with the increasing of the air flow due to the anoxic N2O contribution. Irreversible membrane fouling reduce from 98% to 85% at the air flow rate of 0.57 m3 h-1 and 2.56 m3 h-1, respectively. However, the increase of the air flow rate leads to the increase of the N2O-€“N flux emitted from the MBR (from 40% to 80%).

yearjournalcountryeditionlanguage
2017-01-01
10.1016/j.biortech.2017.05.043http://hdl.handle.net/10447/239514