Design of a High-Rate Wastewater Treatment Process for Energy and Water Recovery at Biorefineries

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dc.contributor.authorLi, Yalin
dc.contributor.authorKontos, George A.
dc.contributor.authorCabrera, Daniela V.
dc.contributor.authorAvila, Nickolas M.
dc.contributor.authorParkinson, Thomas W.
dc.contributor.authorViswanathan, Mothi Bharath
dc.contributor.authorSingh, Vijay
dc.contributor.authorAltpeter, Fredy
dc.contributor.authorLabatut, Rodrigo A.
dc.contributor.authorGuest, Jeremy S.
dc.date.accessioned2025-01-20T20:17:21Z
dc.date.available2025-01-20T20:17:21Z
dc.date.issued2023
dc.description.abstractIndustrial wastewaters rich in organic carbon have potential for value generation, but conventional, low-rate, anaerobic-aerobic wastewater treatment (WWT) processes often incur significant capital expenses and energy consumption. In this study, we leveraged experimental data for biorefinery-derived wastewaters to characterize the implications of transitioning from a conventional, low-rate process to a high-rate, multistage anaerobic process. We designed and simulated these WWT processes across seven first-and second-generation (1G/2G) biorefineries and evaluated the implications for biorefinery sustainability through techno-economic analysis (TEA) and life cycle assessment (LCA). Compared to the conventional design, the new process can substantially reduce capital costs and electricity usage. These improvements were particularly evident for 2G biorefineries, translating to 5%-13% lower minimum product selling prices (MPSPs) and 7%-135% lower 100-year global warming potentials (GWPs; the 135% reduction is due to the transition of one biorefinery from net emission [0.87 kg of CO2e center dot gal-1] to net sequestration [-0.31 kg of CO2e center dot gal-1]). Biorefineries could further reduce the MPSP through the renewable identification number (RIN) credits by upgrading and selling the biogas as renewable natural gas, but at the expense of increasing GWP. When normalized, the COD management cost ranged from $-56 to $465 per tonne of COD, indicating that wastewater could be a net source of revenue for some biorefineries.
dc.description.funderDOE Center for Advanced Bioenergy and Bioproducts Innovation ( U.S. Department of Energy, Office of Science, Office of Biological and Environ-mental Research)
dc.fuente.origenWOS
dc.identifier.doi10.1021/acssuschemeng.2c07139
dc.identifier.issn2168-0485
dc.identifier.urihttps://doi.org/10.1021/acssuschemeng.2c07139
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/92392
dc.identifier.wosidWOS:000935122700001
dc.issue.numero9
dc.language.isoen
dc.pagina.final3872
dc.pagina.inicio3861
dc.revistaAcs sustainable chemistry & engineering
dc.rightsacceso restringido
dc.subjecthigh-strength wastewater
dc.subjectinternal circulation (IC) reactor
dc.subjectanaerobic membrane bioreactor (AnMBR)
dc.subjectbiochemical methane potential (BMP)
dc.subjectrenewable identification number (RIN)
dc.subjecttechno-economic analysis (TEA)
dc.subjectlife cycle assessment (LCA)
dc.subjectlife cycle greenhouse gas (GHG) emissions
dc.subject.ods06 Clean Water and Sanitation
dc.subject.ods07 Affordable and Clean Energy
dc.subject.ods12 Responsible Consumption and Production
dc.subject.odspa06 Agua limpia y saneamiento
dc.subject.odspa07 Energía asequible y no contaminante
dc.subject.odspa12 Producción y consumo responsable
dc.titleDesign of a High-Rate Wastewater Treatment Process for Energy and Water Recovery at Biorefineries
dc.typeartículo
dc.volumen11
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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