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dc.contributor.authorWei, Quantum J.
dc.contributor.authorTucker, Carson I.
dc.contributor.authorWu, Priscilla J.
dc.contributor.authorTrueworthy, Ali M.
dc.contributor.authorTow, Emily W.
dc.contributor.authorLienhard, John H
dc.date.accessioned2019-03-18T16:49:16Z
dc.date.available2019-03-18T16:49:16Z
dc.date.issued2019-02
dc.identifier.urihttp://hdl.handle.net/1721.1/121019
dc.description.abstractIn theory, batch reverse osmosis (RO) systems can achieve the lowest practical energy consumption by varying feed pressure over time. However, few batch RO syste ms have been built and operated. We have tested a bench-scale prototype of a true batch RO system using a bladder and a 2.5” (6.35 cm) spiral wound membrane element. Some practical issues in implementing batch RO include system start-up time, system depressurization, osmotic backwash during the reset phases, and lower permeate quality. This study is the first to validate batch models by measuring the hydraulic work of both the high pressure pump and the circulation pump. The experimental measurements agree well with the model (error ≤ 3 %) after accounting for concentration polarization. We used the validated model to calculate the energy savings of true batch systems at higher salinities and recovery ratios. We find that the energy savings achievable by true batch systems are less than previously thought, but still significant at relatively high recoveries. At 50% recovery of seawater feed, a batch RO plant could save 15% of the energy consumed by a continuous RO plant while still maintaining the same effective flux. Further studies should identify the additional costs associated with batch RO in order to identify the operating conditions where batch RO will be an economically favorable option compared to conventional continuous RO.en_US
dc.language.isoen_US
dc.publisherAmerican Membrane Technology Associationen_US
dc.relation.isversionofhttps://www.amtaorg.com/event/2019-membrane-technology-conference-exposition-new-orleans-la-feb-25-feb-28-2019en_US
dc.rightsCreative Commons Attribution 4.0 International licenseen_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.sourceProf. Lienharden_US
dc.titleBATCH REVERSE OSMOSIS: EXPERIMENTAL RESULTS, MODEL VALIDATION, AND DESIGN IMPLICATIONSen_US
dc.typeArticleen_US
dc.identifier.citationWei, Quantum J. et al. "Batch reverse osmosis: experimental results, model validation and design implications." 2019 AMTA/AWWA Membrane Technology Conference & Exposition, February 2019, New Orleans, Louisiana, American Membrane Technology Association, February 2019.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Electrical Engineering and Computer Scienceen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Mechanical Engineeringen_US
dc.contributor.mitauthorWei, Quantum J.
dc.contributor.mitauthorTucker, Carson I.
dc.contributor.mitauthorWu, Priscilla J.
dc.contributor.mitauthorTrueworthy, Ali M.
dc.contributor.mitauthorTow, Emily W.
dc.contributor.mitauthorLienhard, John H
dc.relation.journal2019 AMTA/AWWA Membrane Technology Conference & Expositionen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/ConferencePaperen_US
eprint.statushttp://purl.org/eprint/status/NonPeerRevieweden_US
dspace.orderedauthorsWei, Quantum J.; Tucker, Carson I.; Wu, Priscilla J.; Trueworthy, Ali M.; Tow, Emily W.; Lienhard, John H.en_US
dspace.embargo.termsNen_US
dc.identifier.orcidhttps://orcid.org/0000-0002-0606-713X
dc.identifier.orcidhttps://orcid.org/0000-0002-2901-0638
mit.licensePUBLISHER_CCen_US


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