NAOSITE : Nagasaki University's Academic Output SITE >
060 工学部・工学研究科 >
060 学術雑誌論文 >
Online monitoring of N-nitrosodimethylamine for the removal assurance of 1,4-dioxane and other trace organic compounds by reverse osmosis
ファイル |
記述 |
サイズ | フォーマット |
ESWRT4_2021.pdf | | 394.22 kB | Adobe PDF | 公開予定日: 2020-01-01 |
タイトル: | Online monitoring of N-nitrosodimethylamine for the removal assurance of 1,4-dioxane and other trace organic compounds by reverse osmosis |
著者: | Fujioka, Takahiro / Kodamatani, Hitoshi / Takeuchi, Haruka / Tanaka, Hiroaki / Nghiem, Long D. |
発行日: | 2018年12月 |
出版者: | Royal Society of Chemistry |
引用: | Environmental Science: Water Research and Technology, 4(12), pp.2021-2028;2018 |
抄録: | Public health protection and cost effectiveness of potable reuse can be improved by providing reliable water quality assurance for removal of trace organic compounds (TOrCs) by reverse osmosis (RO) membranes. This study evaluated the effectiveness of online monitoring of N-nitrosodimethylamine (NDMA) removal using a RO system to ensure the removal of low molecular weight TOrCs. Among the 51 TOrCs selected in this study, a major focus was placed on 1,4-dioxane due to the limited information on the removal of 1,4-dioxane by RO. Laboratory-scale experiments showed that the rejection of 1,4-dioxane by two commercial RO membranes - ESPA2 and HYDRA
(98 and 99%, respectively) - was higher than that of NDMA (57 and 81%, respectively).
Pilot-scale experiments using treated wastewater identified a strong linear correlation between 1,4-dioxane and NDMA rejection over a range of feed temperature.
The pilot-scale results also demonstrated the applicability of NDMA as a conservative performance indicator for 46 other TOrCs at two different RO feed temperatures.
These results suggest that online monitoring of NDMA in RO feed and permeate can allow for ensuring the removal of larger TOrCs,
which could provide additional protection of public health in potable reuse. |
URI: | http://hdl.handle.net/10069/38745 |
ISSN: | 20531400 |
DOI: | 10.1039/C8EW00271A |
権利: | © 2018 The Royal Society of Chemistry. |
資料タイプ: | Journal Article |
原稿種類: | author |
出現コレクション: | 060 学術雑誌論文
|
引用URI :
http://hdl.handle.net/10069/38745
|
このリポジトリに保管されている文献はすべて著作権により保護されています。 印刷やダウンロード等データの複製は、調査研究・教育または学習を目的とする場合に限定されます。
|