| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2025-05-13 |
| タイトル |
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|
タイトル |
Pre-coagulation of surface water for mitigating membrane fouling during submerged nanofiltration |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Drinking water quality |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Dissolved organic matter |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Particulate removal |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Ferric chloride |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Cake layer |
| 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 |
Boivin, Sandrine
Sano, Hideaki
Nakagoe, Osamu
Okuda, Tetsuji
Fujioka, Takahiro
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| 抄録 |
|
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内容記述タイプ |
Abstract |
|
内容記述 |
Membrane fouling becomes a challenge in nanofiltration (NF) when pre-filtration, such as microfiltration or ultrafiltration, is not performed. This study aimed to identify the potential of pre-coagulation for minimizing membrane fouling during submerged NF membrane treatment. Pre-coagulation (i.e., rapid and slow mixing) before submerged NF treatment was performed by adding optimized doses of ferric chloride (FeCl3) or polysilicate iron (PSI). The FeCl3-based pre-coagulation only slightly reduced membrane fouling compared to that without pre-coagulation, with a transmembrane pressure (TMP) increase of 9 kPa compared to 18 kPa over 12 days. In contrast, PSI-based pre-coagulation achieved a smaller TMP increase (7 kPa) compared to filtration without pre-coagulation (26 kPa) over 15 days. Interestingly, considerable deposition of foulants was observed on the surface of both NF membranes. Regardless of pre-coagulation, foulants on the membrane surface were removed using one-wipe sponge cleaning, fully restoring membrane permeance. Membrane characterization indicated that FeCl3 or PSI pre-coagulation resulted in a fouling layer comprising iron, which had low hydraulic resistance. This study identified the potential of PSI-based pre-coagulation for considerably mitigating NF membrane fouling, which reduce the frequency of physical cleaning. |
|
言語 |
en |
| 書誌情報 |
en : Desalination
巻 612,
p. art. no. 118959,
発行日 2025-05-03
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| 出版者 |
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|
出版者 |
Elsevier B.V. |
|
言語 |
en |
| ISSN |
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|
収録物識別子タイプ |
ISSN |
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収録物識別子 |
00119164 |
| 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.desal.2025.118959 |
| 権利 |
|
|
権利情報 |
© 2025 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/). |
|
言語 |
en |
| 著者版フラグ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 引用 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
Desalination, 612, art. no. 118959; 2025 |
|
言語 |
en |
D612_118959.pdf (5.1 MB)
