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j.chemosphere.2017.05.132.pdf | 225.35 kB | Adobe PDF | View/Open |
Title: | Impact of feed water pH and membrane material on nanofiltration of perfluorohexanoic acid in aqueous |
Authors: | Zeng, Chenghui Tanaka, Shuhei ![]() ![]() ![]() Suzuki, Yuji Fujii, Shigeo ![]() |
Author's alias: | 田中, 周平 藤井, 滋穂 |
Keywords: | Perfluorohexanoic acid (PFHxA) Recovery Nanofiltration (NF) Polyamide membrane Sulfonated polyethersulfone membrane pH |
Issue Date: | Sep-2017 |
Publisher: | Elsevier BV |
Journal title: | Chemosphere |
Volume: | 183 |
Start page: | 599 |
End page: | 604 |
Abstract: | Nanofiltration was thought to be a good option for the recovery of perfluorohexanoic acid (PFHxA) from industrial wastewater. In this study, two commercially available nanofiltration (NF) membranes (NF 270 and NTR-7450) were tested to concentrate the PFHxA in aqueous solution. Filtration test was conducted in crossflow filtration mode. Membrane flux and PFHxA rejection rate were monitored throughout the filtration test. The impact of initial feed water pH on membrane performance was investigated. Results demonstrated that the two NF membranes showed different response to the change of initial feed water pH, which was caused by the intrinsic properties of membrane material. The flux performance of NF 270 was stable, while its rejection rate of PFHxA was very sensitive to the change of initial feed water pH. Opposite result was obtained with NTR-7450. It had a very good stability on rejection rate, while its flux was very sensitive to the change of initial feed water pH. The mechanisms behind these phenomena were also discussed. The results obtained in this study should be very useful for the process design in practical engineering. |
Rights: | © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 This is not the published version. Please cite only the published version. |
URI: | http://hdl.handle.net/2433/245419 |
DOI(Published Version): | 10.1016/j.chemosphere.2017.05.132 |
PubMed ID: | 28575703 |
Appears in Collections: | Journal Articles |

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