Effect of branch structure of thermoresponsive oligomers on draw solution performance in forward osmosis process

Inada, Asuka; Yumiya, Kenichiro; Kumagai, Kazuo; Matsuyama, Hideto

doi:10.1016/j.colsurfa.2020.125659

Cited by 12 publications

(2 citation statements)

References 15 publications

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“…As a result, thermoresponsive oligomers have attracted a great deal of interest. [144][145][146][147] Our group has designed and synthesized a series of oligomers containing amphiphilic OEG-based side chains (Fig. 12a).…”

Section: Impact Of Molecular Structures On ''Facially Amphiphilic'' D...mentioning

confidence: 99%

Molecular bases for temperature sensitivity in supramolecular assemblies and their applications as thermoresponsive soft materials

et al. 2022

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Section: Impact Of Molecular Structures On ''Facially Amphiphilic'' D...mentioning

confidence: 99%

Molecular bases for temperature sensitivity in supramolecular assemblies and their applications as thermoresponsive soft materials

et al. 2022

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“…3 A number of thermoresponsive DS has previously been proposed in the literature. 4,5 Among the thermoresponsive materials, which could be explored as a draw solute for FO, is an ethylene oxide−propylene oxide-based copolymer (hereafter referred to as "DS copolymer"), which is known to have a low critical soluble temperature (LCST) of around 50−90 °C and can therefore easily be separated into DS-rich and DS-poor phases by low-grade heat. Furthermore, the hollow fiber (HF) module is preferably used for the FO process because of its higher packing density and effective membrane area, compared with flat-sheet-based spiral-wound and plate-and-frame modules.…”

Section: Introductionmentioning

confidence: 99%

Simulation of Thermoresponsive Draw Solute-Driven Forward Osmosis for Enhanced Pure Water Production in Seawater Desalination

Kishimoto

Gonzales

Goda

et al. 2021

Ind. Eng. Chem. Res.

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In this study, we developed a novel forward osmosis (FO) simulation method for a multicomponent system (water, NaCl, and thermoresponsive ethylene oxide−propylene oxide-based copolymer draw solute) targeted for direct seawater desalination using a hollow fiber (HF) membrane module. Box complex method was applied to numerically solve the FO simulation model of a three-component system. A good agreement between experimental and simulation results obtained in various operation conditions allowed us to estimate not only the effect of NaCl and draw solution (DS) concentration on the resulting water permeate flow rate but also the osmotic pressure inside and outside of the HF membranes. From the analysis, the HF modules were designed to decrease the dilution of the draw solution (DS) inside the module due to water permeation. We validated the suggestion by simulation of the increase of the water permeation rate in the modified HF modules, which were designed for the smooth flow of the DS to decrease the DS dilution. The simulation was further verified by reasonable results indicating that the decrease of NaCl concentration in the feed water is also effective in increasing the water permeation rate in the current HF module.

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Design, synthesis, and application of thermally responsive draw solutes for sustainable forward osmosis desalination: A review

2023

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Effect of branch structure of thermoresponsive oligomers on draw solution performance in forward osmosis process

Cited by 12 publications

References 15 publications

Molecular bases for temperature sensitivity in supramolecular assemblies and their applications as thermoresponsive soft materials

Molecular bases for temperature sensitivity in supramolecular assemblies and their applications as thermoresponsive soft materials

Simulation of Thermoresponsive Draw Solute-Driven Forward Osmosis for Enhanced Pure Water Production in Seawater Desalination

Design, synthesis, and application of thermally responsive draw solutes for sustainable forward osmosis desalination: A review

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