Modeling and Life Cycle Assessment of a Membrane Bioreactor–Membrane Distillation Wastewater Treatment System for Potable Reuse

Wastewater treatment for indirect potable reuse (IPR) is a possible approach to address water scarcity. In this study, a novel membrane bioreactor–membrane distillation (MBR-MD) system was evaluated to determine the environmental impacts of treatment compared to an existing IPR facility (“Baseline”)...

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Main Authors: Callan J. Glover, James A. Phillips, Eric A. Marchand, Sage R. Hiibel
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Separations
Subjects:
Online Access:https://www.mdpi.com/2297-8739/9/6/151
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author Callan J. Glover
James A. Phillips
Eric A. Marchand
Sage R. Hiibel
author_facet Callan J. Glover
James A. Phillips
Eric A. Marchand
Sage R. Hiibel
author_sort Callan J. Glover
collection DOAJ
description Wastewater treatment for indirect potable reuse (IPR) is a possible approach to address water scarcity. In this study, a novel membrane bioreactor–membrane distillation (MBR-MD) system was evaluated to determine the environmental impacts of treatment compared to an existing IPR facility (“Baseline”). Physical and empirical models were used to obtain operational data for both systems and inform a life cycle inventory. Life cycle assessment (LCA) was used to compare the environmental impacts of each system. Results showed an average 53.7% reduction in environmental impacts for the MBR-MD system when waste heat is used to operate MD; however, without waste heat, the environmental impacts of MBR-MD are significantly higher, with average impacts ranging from 218% to 1400% greater than the Baseline, depending on the proportion of waste heat used. The results of this study demonstrate the effectiveness of the novel MBR-MD system for IPR and the reduced environmental impacts when waste heat is available to power MD.
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spelling doaj.art-dd7322b2ccfb4f9f9b94359cc2af2dec2023-11-23T18:57:09ZengMDPI AGSeparations2297-87392022-06-019615110.3390/separations9060151Modeling and Life Cycle Assessment of a Membrane Bioreactor–Membrane Distillation Wastewater Treatment System for Potable ReuseCallan J. Glover0James A. Phillips1Eric A. Marchand2Sage R. Hiibel3Department of Chemical and Materials Engineering, University of Nevada, Reno, NV 89557, USAGraduate Program of Hydrologic Sciences, University of Nevada, Reno, NV 89557, USADepartment of Civil and Environmental Engineering, University of Nevada, Reno, NV 89557, USADepartment of Chemical and Materials Engineering, University of Nevada, Reno, NV 89557, USAWastewater treatment for indirect potable reuse (IPR) is a possible approach to address water scarcity. In this study, a novel membrane bioreactor–membrane distillation (MBR-MD) system was evaluated to determine the environmental impacts of treatment compared to an existing IPR facility (“Baseline”). Physical and empirical models were used to obtain operational data for both systems and inform a life cycle inventory. Life cycle assessment (LCA) was used to compare the environmental impacts of each system. Results showed an average 53.7% reduction in environmental impacts for the MBR-MD system when waste heat is used to operate MD; however, without waste heat, the environmental impacts of MBR-MD are significantly higher, with average impacts ranging from 218% to 1400% greater than the Baseline, depending on the proportion of waste heat used. The results of this study demonstrate the effectiveness of the novel MBR-MD system for IPR and the reduced environmental impacts when waste heat is available to power MD.https://www.mdpi.com/2297-8739/9/6/151wastewater treatmentmembrane distillationmembrane bioreactorlife cycle analysis
spellingShingle Callan J. Glover
James A. Phillips
Eric A. Marchand
Sage R. Hiibel
Modeling and Life Cycle Assessment of a Membrane Bioreactor–Membrane Distillation Wastewater Treatment System for Potable Reuse
Separations
wastewater treatment
membrane distillation
membrane bioreactor
life cycle analysis
title Modeling and Life Cycle Assessment of a Membrane Bioreactor–Membrane Distillation Wastewater Treatment System for Potable Reuse
title_full Modeling and Life Cycle Assessment of a Membrane Bioreactor–Membrane Distillation Wastewater Treatment System for Potable Reuse
title_fullStr Modeling and Life Cycle Assessment of a Membrane Bioreactor–Membrane Distillation Wastewater Treatment System for Potable Reuse
title_full_unstemmed Modeling and Life Cycle Assessment of a Membrane Bioreactor–Membrane Distillation Wastewater Treatment System for Potable Reuse
title_short Modeling and Life Cycle Assessment of a Membrane Bioreactor–Membrane Distillation Wastewater Treatment System for Potable Reuse
title_sort modeling and life cycle assessment of a membrane bioreactor membrane distillation wastewater treatment system for potable reuse
topic wastewater treatment
membrane distillation
membrane bioreactor
life cycle analysis
url https://www.mdpi.com/2297-8739/9/6/151
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