Micro-nanobubbles enhanced osmotically assisted reverse osmosis for high-salinity brine treatment: A multi-scale investigation into performance and mechanisms.
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| Title: | Micro-nanobubbles enhanced osmotically assisted reverse osmosis for high-salinity brine treatment: A multi-scale investigation into performance and mechanisms. |
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| Authors: | Du, Yawei1,2,3 (AUTHOR) sonicduyawei001@126.com, Cao, Qian1 (AUTHOR), Dai, Jiangbo1 (AUTHOR), Li, Yanping4 (AUTHOR), Liu, Jie1,2,3 (AUTHOR), Li, Jingde1,2,3 (AUTHOR), Ji, Zhiyong1,2,3 (AUTHOR) jizhiyong@hebut.edu.cn |
| Source: | Chemical Engineering Science. Jun2026, Vol. 328, pN.PAG-N.PAG. 1p. |
| Subjects: | Reverse osmosis, Microbubbles, Molecular dynamics, Nanofiltration, Mass transfer, Salt, Process optimization |
| Abstract: | [Display omitted] • Osmotically assisted reverse osmosis enhanced by micro-nano bubbles is investigated; • Couple effects of MNBs with salinity, temperature, flow rate, pressure are numerical analyzed; • A maximum of 19.74% promotion ratio for water flux is achieved by MNBs; • Feasibility of MNBs-enhanced OARO process for high salinity brine at low pressure is explored. • Molecular dynamics simulation elucidates behavior and stability of nanobubble with temp., pressure and ions effects. Osmotically assisted reverse osmosis (OARO) presents an energy-efficient solution for high-salinity brine management, yet its practical application is significantly limited by concentration polarization. This study investigates a novel enhancement strategy using micro-nanobubbles (MNBs) in the OARO process. A comprehensive approach combining experimental membrane cell tests with a validated numerical model was employed to analyze the impact of key operating parameters on water flux and the promotion efficiency of MNBs. Results demonstrate that while the efficacy of feed-side MNBs diminishes markedly at elevated temperatures and applied pressure, draw-side MNBs sustain a significant performance improvement, enhancing water flux by up to 18.18% and reducing salt leakage by 21.3% as the feed temperature increases from 25 °C to 40 °C. Partial least squares analysis identified draw flow rate and applied pressure as the dominant factors governing system performance. Furthermore, the feasibility of employing a nanofiltration membrane for treating high-salinity brines containing multivalent ions under minimal pressure was successfully demonstrated. Complementing these macro-scale experiments, molecular dynamics (MD) simulations provided fundamental insights into nanobubble stability, revealing that a low-temperature, low-salinity, and low-pressure environment optimally preserves bubble integrity and maximizes OARO enhancement. This multi-scale study confirms the potential of MNBs for mitigating mass transfer limitations in OARO and establishes operational guidelines for maximizing process efficiency. [ABSTRACT FROM AUTHOR] |
| Copyright of Chemical Engineering Science is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 192437571 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Micro-nanobubbles enhanced osmotically assisted reverse osmosis for high-salinity brine treatment: A multi-scale investigation into performance and mechanisms. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Du%2C+Yawei%22">Du, Yawei</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<i> sonicduyawei001@126.com</i><br /><searchLink fieldCode="AR" term="%22Cao%2C+Qian%22">Cao, Qian</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Dai%2C+Jiangbo%22">Dai, Jiangbo</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Yanping%22">Li, Yanping</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Jie%22">Liu, Jie</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Jingde%22">Li, Jingde</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ji%2C+Zhiyong%22">Ji, Zhiyong</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<i> jizhiyong@hebut.edu.cn</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Chemical+Engineering+Science%22">Chemical Engineering Science</searchLink>. Jun2026, Vol. 328, pN.PAG-N.PAG. 1p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Reverse+osmosis%22">Reverse osmosis</searchLink><br /><searchLink fieldCode="DE" term="%22Microbubbles%22">Microbubbles</searchLink><br /><searchLink fieldCode="DE" term="%22Molecular+dynamics%22">Molecular dynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Nanofiltration%22">Nanofiltration</searchLink><br /><searchLink fieldCode="DE" term="%22Mass+transfer%22">Mass transfer</searchLink><br /><searchLink fieldCode="DE" term="%22Salt%22">Salt</searchLink><br /><searchLink fieldCode="DE" term="%22Process+optimization%22">Process optimization</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: [Display omitted] • Osmotically assisted reverse osmosis enhanced by micro-nano bubbles is investigated; • Couple effects of MNBs with salinity, temperature, flow rate, pressure are numerical analyzed; • A maximum of 19.74% promotion ratio for water flux is achieved by MNBs; • Feasibility of MNBs-enhanced OARO process for high salinity brine at low pressure is explored. • Molecular dynamics simulation elucidates behavior and stability of nanobubble with temp., pressure and ions effects. Osmotically assisted reverse osmosis (OARO) presents an energy-efficient solution for high-salinity brine management, yet its practical application is significantly limited by concentration polarization. This study investigates a novel enhancement strategy using micro-nanobubbles (MNBs) in the OARO process. A comprehensive approach combining experimental membrane cell tests with a validated numerical model was employed to analyze the impact of key operating parameters on water flux and the promotion efficiency of MNBs. Results demonstrate that while the efficacy of feed-side MNBs diminishes markedly at elevated temperatures and applied pressure, draw-side MNBs sustain a significant performance improvement, enhancing water flux by up to 18.18% and reducing salt leakage by 21.3% as the feed temperature increases from 25 °C to 40 °C. Partial least squares analysis identified draw flow rate and applied pressure as the dominant factors governing system performance. Furthermore, the feasibility of employing a nanofiltration membrane for treating high-salinity brines containing multivalent ions under minimal pressure was successfully demonstrated. Complementing these macro-scale experiments, molecular dynamics (MD) simulations provided fundamental insights into nanobubble stability, revealing that a low-temperature, low-salinity, and low-pressure environment optimally preserves bubble integrity and maximizes OARO enhancement. This multi-scale study confirms the potential of MNBs for mitigating mass transfer limitations in OARO and establishes operational guidelines for maximizing process efficiency. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Chemical Engineering Science is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.ces.2026.123778 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: N.PAG Subjects: – SubjectFull: Reverse osmosis Type: general – SubjectFull: Microbubbles Type: general – SubjectFull: Molecular dynamics Type: general – SubjectFull: Nanofiltration Type: general – SubjectFull: Mass transfer Type: general – SubjectFull: Salt Type: general – SubjectFull: Process optimization Type: general Titles: – TitleFull: Micro-nanobubbles enhanced osmotically assisted reverse osmosis for high-salinity brine treatment: A multi-scale investigation into performance and mechanisms. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Du, Yawei – PersonEntity: Name: NameFull: Cao, Qian – PersonEntity: Name: NameFull: Dai, Jiangbo – PersonEntity: Name: NameFull: Li, Yanping – PersonEntity: Name: NameFull: Liu, Jie – PersonEntity: Name: NameFull: Li, Jingde – PersonEntity: Name: NameFull: Ji, Zhiyong IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 06 Text: Jun2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 00092509 Numbering: – Type: volume Value: 328 Titles: – TitleFull: Chemical Engineering Science Type: main |
| ResultId | 1 |
