The solution-diffusion model for water transport in reverse osmosis: What went wrong?
Fan H, Heiranian M, Elimelech M. The solution-diffusion model for water transport in reverse osmosis: What went wrong? Desalination 2024, 580: 117575. DOI: 10.1016/j.desal.2024.117575.Peer-Reviewed Original ResearchSolution-diffusion modelRO membranesReverse osmosisWater transport mechanismPore flow modelDesalination membranesDesalination technologiesFrictional interactionTransport mechanismWater transportConcentration gradient of waterFree volumeMembrane poresEnergy efficiencyOsmosisLow costPressure gradientState-of-the-artTheoretical findingsWater flowState-of-the-art desalination technologiesConcentration gradientPoreExtended Donnan model for ion partitioning in charged nanopores: Application to ion-exchange membranes
Wang R, Biesheuvel P, Elimelech M. Extended Donnan model for ion partitioning in charged nanopores: Application to ion-exchange membranes. Journal Of Membrane Science 2024, 705: 122921. DOI: 10.1016/j.memsci.2024.122921.Peer-Reviewed Original ResearchIon-exchange membranesExchange membraneInteraction of ionsCoulomb interaction of ionsIon partitioningCharged pore wallsElectrostatic modelChemical potential of ionsArrangement of ionsPore solutionPotentials of ionsDonnan modelDonnan equationPore sizeCylindrical poresPore wallsDistribution of ionsPolymer chargeEffect of ionsAqueous solutionPoreIon activity coefficientsSalt concentrationIonsGeometric factors