6533b7d3fe1ef96bd1261490

RESEARCH PRODUCT

Minimizing membrane bioreactor environmental footprint by multiple objective optimization.

Gustaf OlssonTaise Ferreira RebouçasGiorgio ManninaBing-jie NiAlida Cosenza

subject

Membrane fouling0106 biological sciencesEnvironmental EngineeringWastewater treatment plantMathematical modelling optimizationBioengineeringWastewater010501 environmental sciencesMembrane bioreactor01 natural sciencesWaste Disposal FluidGreenhouse GasesBioreactors010608 biotechnologyWaste WaterProcess engineeringWaste Management and Disposal0105 earth and related environmental sciencesSettore ICAR/03 - Ingegneria Sanitaria-AmbientaleSewageRenewable Energy Sustainability and the Environmentbusiness.industryMembrane foulingTOPSISMembranes ArtificialGeneral MedicineIdeal solutionPilot plantGreenhouse gasMulti-objective analysisEnvironmental scienceSewage treatmentPerformance indicatorbusinessBiotechnology

description

This paper presents a modelling study aimed at minimizing the environmental foot print of a membrane bioreactor (MBR) for wastewater treatment. Specifically, an integrated model for MBR was employed in view of the management optimization of an MBR biological nutrient removal (BNR) pilot plant in terms of operational costs and direct greenhouse gases emissions. The influence of the operational parameters (OPs) on performance indicators (PIs) was investigated by adopting the Extended-FAST sensitivity analysis method. Further, a multi-objective analysis was performed by applying the Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS). The results show-up that the sludge retention time is the OP mostly affecting all the investigated PIs. By applying the set of optimal OPs, there was a reduction of 48% and 10% of the operational costs and direct emissions, respectively.

https://hdl.handle.net/10453/146828