Investigation of Cleaning Strategies for an Antifouling Thin-Film Composite Forward Osmosis Membrane for Treatment of Polymer-Flooding Produced Water 机翻标题: 暂无翻译,请尝试点击翻译按钮。

来源
Industrial & Engineering Chemistry Research
年/卷/期
2019 / 58 / 2
页码
994-1003
ISSN号
0888-5885
作者单位
Hebei Univ Technol, Sch Civil Engn & Transportat, Tianjin 300401, Peoples R China;Hebei Univ Technol, Sch Civil Engn & Transportat, Tianjin 300401, Peoples R China;Hebei Univ Technol, Sch Civil Engn & Transportat, Tianjin 300401, Peoples R China;Harbin Inst Technol, State Key Lab Urban Water Resource & Environm, Harbin 150090, Heilongjiang, Peoples R China;Kobe Univ, Dept Chem Sci & Engn, Ctr Membrane & Film Technol, Kobe, Hyogo 6578501, Japan;Chongqing Univ, Coll Urban Construct & Environm Engn, Chongqing 400044, Peoples R China;Harbin Inst Technol, State Key Lab Urban Water Resource & Environm, Harbin 150090, Heilongjiang, Peoples R China;Kobe Univ, Dept Chem Sci & Engn, Ctr Membrane & Film Technol, Kobe, Hyogo 6578501, Japan;
作者
Zhang, Xinyu;Gao, Shanshan;Tian, Jiayu;Shan, Sujie;Takagi, Ryosuke;Cui, Fuyi;Bai, Langming;Matsuyama, Hideto;
摘要
An optimized cleaning strategy of a thin-film composite membrane functionalized with zwitterionic poly(sulfobetaine methacrylate) brushes (TFC-PSBMA membrane) was investigated for a long-term forward osmosis (FO) treatment of polymer-flooding produced water (PFPW). Crude oil and anionic polyacrylamide (APAM) were used as the representative organic substances in the wastewater. The results showed that irreversible fouling was significantly aggravated by increasing the relative concentration of crude oil in the feed solution revealing it to be the major foulant. Then, five cleaning protocols were investigated such as deionized water washing, NaCl osmotic backwashing, chemical washing with acid, alkali, and surfactant cleaning, respectively. As the result, it was found that chemical cleaning with sodium dodecyl benzenesulfonate (SDBS) was the most effective method for removing foulants from the membrane surfaces. Meanwhile, PSBMA brushes grafted on the membrane exhibited excellent tolerance to the chemical stress caused by SDBS but not to NaOH.
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