Forward Osmosis (FO) Membrane Fouling Mitigation during the Concentration of Cows' Urine

Guizani, Mokhtar; Ito, Ryusei; Matsuda, Takato

Membranes, 2022, 12(2), 234

Permalink : https://hdl.handle.net/2115/85053

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https://doi.org/10.3390/membranes12020234     5

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アクセス権
metadata only access
URI
https://hdl.handle.net/2115/85053
タイトル
Forward Osmosis (FO) Membrane Fouling Mitigation during the Concentration of Cows' Urine
著者
Guizani, Mokhtar ; Ito, Ryusei ; Matsuda, Takato
著者名
Guizani, Mokhtar
e-Rad_Researcher
70374577
著者名
Ito, Ryusei
著者名
Matsuda, Takato
言語
英語
キーワード
forward osmosis
osmotic backwash
chemical cleaning
fouling
membrane
発行日
2022-02
出版者
MDPI
収録物名
Membranes
巻(号)
12(2)
ページ
234
抄録
FO membrane fouling mitigation during the concentration of cows' urine was investigated. In particular, the effects on the permeability recovery of cleaning methods such as membrane washing with deionized (DI) water, osmotic backwash, and chemical cleaning were studied. The characterization of foulants that accumulated on the membrane surface was found to be rich in sugars and proteins. The foulants were effectively removed by de-ionized water circulation (washing) and osmotic backwash. While osmotic back was more effective, it did not fully recover the permeability of the membrane. The foulants absorbed in the membrane pores were found to be mainly composed of sugars. Soaking the membrane in a solution of NaClO enabled the removal of foulants absorbed inside the membrane. It was revealed that soaking in 1% NaClO solution for 30 min achieved the best results (83% permeability recovery), while soaking for a longer time (10 h) using 0.2% NaClO resulted in counterproductive results.
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学術雑誌論文
出版タイプ
Version of Record
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出版社版DOI
https://doi.org/10.3390/membranes12020234