| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2025-07-25 |
| タイトル |
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|
タイトル |
Micro-nanobubbles for removing membrane foulants from the surface of nanofiltration membranes in drinking water applications |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Drinking water |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
NF membranes |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Membrane fouling |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
MNBs |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Physical cleaning |
| 資源タイプ |
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|
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 |
Son, Te Minh
Chang, Ying Shi
Kamada, Kai
Boivin, Sandrine
Fujioka, Takahiro
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
Membrane fouling is an inevitable phenomenon in nanofiltration (NF) membrane treatment. In particular, direct treatment of surface water using submerged NF membranes can induce increased fouling due to the absence of a pre-filtration process. This study aimed to optimize membrane cleaning conditions using micro-nanobubbles (MNBs) during submerged NF membrane treatment. The system using NF270 membranes was operated at a constant flux of 6 L/m2h with weekly MNB cleaning intervals. The results showed that MNB cleaning for over 90 min achieved full recovery of water permeance. During long-term operation (49 days), weekly MNB cleaning restored the transmembrane pressure to its initial value within the first four filtration cycles. The rejection of dissolved organic carbon remained high (>74%), indicating that MNB cleaning did not compromise the quality of treated water. However, the cleaning efficiency decreased in subsequent filtration cycles. The cleaning effect of MNBs was attributed to the shear force and collapse phenomenon, which reduced the formation of a cake layer comprising organic matter (e.g., protein-like substances) and bacterial cells on the NF membrane surface. These results demonstrate the effectiveness of MNB cleaning in mitigating fouling during submerged NF treatment. |
|
言語 |
en |
| 書誌情報 |
en : Separation and Purification Technology
巻 377,
p. art. no. 134259,
発行日 2025-07-14
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| 出版者 |
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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 |
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|
関連タイプ |
isIdenticalTo |
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|
識別子タイプ |
DOI |
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|
関連識別子 |
10.1016/j.seppur.2025.134259 |
| 権利 |
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|
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, 377, art. no. 134259; 2025 |
|
言語 |
en |
SPT377_134259.pdf (1.8 MB)
