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Impact of heat modification conditions on the removal of N-nitrosodimethylamine by polyamide reverse osmosis membranes
http://hdl.handle.net/10069/40024
http://hdl.handle.net/10069/400243569c3d2-bacc-46f3-b6ab-0eef81b8af63
名前 / ファイル | ライセンス | アクション |
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SPT247_116921.pdf (310.6 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-12-18 | |||||
タイトル | ||||||
タイトル | Impact of heat modification conditions on the removal of N-nitrosodimethylamine by polyamide reverse osmosis membranes | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | CECs | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | NDMA | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Polyamide | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Potable water reuse | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | RO membrane | |||||
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 |
Fujioka, Takahiro
× Fujioka, Takahiro× Osako, Miyu× Oda, Kaoru× Shintani, Takuji× Kodamatani, Hitoshi |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Advanced wastewater treatment using a reverse osmosis (RO) membrane is a key separation process for ensuring the removal of chemical hazards so that treated wastewater can be used for potable purposes. This study systematically assesses the effects of heat modification conditions of three commercial RO membranes on the removal of a challenging chemical of emerging concern?N-nitrosodimethylamine (NDMA). The RO membranes were modified in pure water at the heat treatment temperature between 70 and 100 °C; 90?100 °C achieved the highest NDMA rejection during separation tests. A lower pH during heat treatment generally resulted in higher NDMA rejection, however a solution pH lower than four can reduce NDMA rejection depending on the presence of a protective layer on the RO membrane surface. Overall, a linear tradeoff between NDMA rejection and water permeance was commonly observed among the heat-treated RO membranes. The stability of a heat-modified membrane in water permeance and NDMA rejection was demonstrated over a week-long test using treated wastewater. The enhanced removal of NDMA by heat-treated RO membranes was speculated to occur due to the shrinking of the passage of solutes?free-volume holes. This study demonstrates the importance of heat modification conditions on RO membranes to achieve a high NDMA rejection. | |||||
書誌情報 |
Separation and Purification Technology 巻 247, p. 116921, 発行日 2020-04-28 |
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出版者 | ||||||
出版者 | Elsevier B.V. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 13835866 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1016/j.seppur.2020.116921 | |||||
権利 | ||||||
権利情報 | c 2020 Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | |||||
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, 247, art.no.116921; 2020 |