| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2025-06-10 |
| タイトル |
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|
タイトル |
Effects of Moringa oleifera-based pre-coagulation and hydraulic flushing on the reduction of submerged nanofiltration membrane fouling |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Advanced water treatment |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
NF membrane |
| 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 |
Natural coagulant |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Moringa oleifera |
| 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
Okuda, Tetsuji
Fujioka, Takahiro
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
Membrane fouling is challenging for the direct nanofiltration (NF) treatment of surface water when pre-filtration is not performed. This study aimed to determine the efficacy of pre-coagulation using a natural coagulant, Moringa oleifera (MO), and hydraulic flushing to reduce membrane fouling during submerged NF treatment of dam water. MO-based coagulation considerably reduced turbidity from 8–12 to 1–2 NTU. However, the transmembrane pressure (TMP) of submerged NF treatments with and without pre-coagulation typically increases over time, indicating that turbid substances were not the major contributors to hydraulic resistance during submerged NF treatment. Hydraulic flushing, simulated by pouring water onto the surface of the membrane in the laboratory, resulted in near-full recovery of TMPs. Regardless of pre-coagulation, dissolved organic carbon concentrations in the permeate were comparable, dropping from 1.2 mg/L in the dam water to 0.4 mg/L in the permeates. Bacteria were deposited on the surface of the NF membrane when pre-coagulation was applied. This suggests the potential for biofouling during long-term operation. This study highlights the potential of MO-based pre-coagulation for fouling mitigation of submerged NF membranes when used with hydraulic flushing, but warns that residual biopolymers or high microorganism concentrations may offset the reduction in membrane fouling during long-term operations. |
|
言語 |
en |
| 書誌情報 |
en : Desalination and Water Treatment
巻 323,
p. art. no. 101249,
発行日 2025-05-30
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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 |
|
収録物識別子 |
19443986 |
| DOI |
|
|
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.dwt.2025.101249 |
| 権利 |
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|
権利情報 |
© 2025 The Authors. Published by Elsevier Inc. This is an open access article under the CC BY-NC license (http://creativecommons.org/licenses/bync/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 and Water Treatment, 323, art. no. 101249; 2025 |
|
言語 |
en |
DWT323_101249.pdf (3.7 MB)
