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dc.contributor.authorElcik, Harun
dc.contributor.authorFortunato, Luca
dc.contributor.authorAlpatova, Alla
dc.contributor.authorSoukane, Sofiane
dc.contributor.authorOrfi, Jamel
dc.contributor.authorAli, Emad
dc.contributor.authorAlAnsary, Hany
dc.contributor.authorLeiknes, TorOve
dc.contributor.authorGhaffour, NorEddine
dc.date.accessioned2020-08-12T12:20:56Z
dc.date.available2020-08-12T12:20:56Z
dc.date.issued2020-08-13
dc.identifier.citationElcik, H., Fortunato, L., Alpatova, A., Soukane, S., Orfi, J., Ali, E., … Ghaffour, N. (2020). Multi-effect distillation brine treatment by membrane distillation: Effect of antiscalant and antifoaming agents on membrane performance and scaling control. Desalination, 493, 114653. doi:10.1016/j.desal.2020.114653
dc.identifier.doi10.1016/j.desal.2020.114653
dc.identifier.urihttp://hdl.handle.net/10754/664574
dc.description.abstractOne of the main advantages of the membrane distillation (MD) process is its ability to treat highly saline feed waters such as thermal desalination brines at moderate temperatures. However, scaling remains one of the major obstacles, causing a significant flux decline and membrane pore wetting. Furthermore, antiscalant and antifoaming agents are commonly utilized in conventional thermal desalination to prevent scale formation, and their effects on MD operation are not yet well understood. This study explores a multi-effect distillation (MED) brine as a potential feed source for MD system with respect to process performance and membrane scaling. The influence of chemicals present in MED brine as well as feed temperature on the scaling process is addressed in terms of vapor flux and salt crystals formation. The scale formation was monitored with the non-invasive optical coherence tomography (OCT) imaging, and results were validated by scanning electron microscopy (SEM). Additionally, the elemental composition of the scale was determined and its effect on membrane contact angle was evaluated. We found that depending on its concentration, the antiscalant prolonged the induction time of salt crystallization whereas antifoaming showed the opposite effect. Scaling mostly occurred due to calcium sulfate crystals formation with the large size needle-shaped crystals favored at higher feed temperature. However, no pore wetting was observed including locations where crystal deposition occurred. Results show that thermal desalination brine, which is already preheated and chemically pretreated, could be an appropriate feed source for MD to further increase the overall water recovery and reduce the marine environmental impact by reducing the brine discharge volume and its temperature.
dc.description.sponsorshipThe research reported in this paper was supported by King Abdullah University of Science and Technology (KAUST), Saudi Arabia, through the KAUST-KSU (King Saud University) initiative, Grant # REP/1/3805-01-01 (KAUST) and RG-1440-103 (KSU). The authors acknowledge help, assistance and support from the Water Desalination and Reuse Center (WDRC) and KAUST staff.
dc.language.isoen
dc.publisherElsevier
dc.rightsArchived with thanks to Desalination
dc.titleMulti-effect distillation brine treatment by membrane distillation: Effect of antiscalant and antifoaming agents on membrane performance and scaling control
dc.typeArticle
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.identifier.journalDesalination
dc.rights.embargodate2022-08-12
dc.eprint.versionPost-print
dc.contributor.institutionMechanical Engineering Department, King Saud University, Riyadh, 11421, Saudi Arabia
dc.contributor.institutionKA.CARE Energy Research and Innovation Center at Riyadh, Saudi Arabia
dc.contributor.institutionChemical Engineering Department, King Saud University, Riyadh,11421, Saudi Arabia
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)
pubs.publication-statusAccepted
kaust.personElcik, Harun
kaust.personFortunato, Luca
kaust.personAlpatova, Alla
kaust.personSoukane, Sofiane
kaust.personLeiknes, TorOve
kaust.personGhaffour, Noreddine
kaust.grant.numberREP/1/3805-01-01
kaust.acknowledged.supportUnitWater Desalination and Reuse Center (WDRC)
dc.date.published-online2020-08-13
dc.date.published-print2020-11


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