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Reverse osmosis membrane surface modification with hydrophilic amines for enhanced N-nitrosamine separation and antifouling performance
http://hdl.handle.net/10069/0002002885
http://hdl.handle.net/10069/00020028850e4e85cb-ca8f-4f18-85b2-24b807c0ab63
| 名前 / ファイル | ライセンス | アクション |
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SPT378_134751.pdf (2.3 MB)
Download is available from 2027/8/16.
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| アイテムタイプ | 学術雑誌論文 / Journal Article(1) | |||||||||||
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| 公開日 | 2025-08-28 | |||||||||||
| タイトル | ||||||||||||
| タイトル | Reverse osmosis membrane surface modification with hydrophilic amines for enhanced N-nitrosamine separation and antifouling performance | |||||||||||
| 言語 | en | |||||||||||
| 言語 | ||||||||||||
| 言語 | eng | |||||||||||
| キーワード | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | Hydrophilic amine | |||||||||||
| キーワード | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | In situ modification | |||||||||||
| キーワード | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | Reduced permeance loss | |||||||||||
| キーワード | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | NDMA rejection | |||||||||||
| キーワード | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | Antifouling | |||||||||||
| 資源タイプ | ||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||
| 資源タイプ | journal article | |||||||||||
| 著者 |
Chang, Ying Shi
× Chang, Ying Shi
× Kodamatani, Hitoshi
× Fujioka, Takahiro
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| 抄録 | ||||||||||||
| 内容記述タイプ | Abstract | |||||||||||
| 内容記述 | Reverse osmosis (RO) membranes used for potable water reuse have limitations in rejecting small constituents such as N-nitrosamines. This study aimed to modify a commercial RO membrane (ESPA2) with hydrophilic methyl-polyethylene glycol-amine (methyl-PEG-amine) to enhance its separation performance and fouling resistance. Modification with a large methyl-PEG-amine, with an optimal minimum projection area (MPA) of 42 Å2, increased the N-nitrosodimethylamine (NDMA) rejection from 47 % to 60 %. This enhanced rejection was comparable to that of the hydrophobic amine modifier (i.e., dodecylamine), but with the advantage of 25 % higher water permeance. This could be attributed to effective immobilization of hydrophilic amine within the membrane through electrostatic attraction and strong hydrogen bonding networks with the membrane, facilitating size exclusion for N-nitrosamines. An additional key benefit of hydrophilic amine modification is enhanced membrane fouling resistance. The modified membrane exhibited an 18 % smaller drop in permeate flux compared to the pristine membrane when treating synthetic organic solution (a mixture of humic acid, sodium alginate, and bovine serum albumin). This study highlights the potential of non-toxic methyl-PEG-amine as an RO membrane modifier for the simultaneous enhancement of antifouling properties and N-nitrosamine rejection, with minimal compromise to water permeance. | |||||||||||
| 言語 | en | |||||||||||
| 書誌情報 |
en : Separation and Purification Technology 巻 378, p. art. no. 134751, 発行日 2025-08-16 |
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| 出版者 | ||||||||||||
| 出版者 | Elsevier B.V. | |||||||||||
| 言語 | en | |||||||||||
| ISSN | ||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||
| 収録物識別子 | 13835866 | |||||||||||
| DOI | ||||||||||||
| 関連タイプ | isIdenticalTo | |||||||||||
| 識別子タイプ | DOI | |||||||||||
| 関連識別子 | 10.1016/j.seppur.2025.134751 | |||||||||||
| 権利 | ||||||||||||
| 権利情報 | © 2025 Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/. | |||||||||||
| 言語 | en | |||||||||||
| 著者版フラグ | ||||||||||||
| 出版タイプ | AM | |||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||
| 引用 | ||||||||||||
| 内容記述タイプ | Other | |||||||||||
| 内容記述 | Separation and Purification Technology, 378, art. no. 134751; 2025 | |||||||||||
| 言語 | en | |||||||||||
