Sulfonated hyperbranched polyglycerol grafted membranes with antifouling properties for sustainable osmotic power generation using municipal wastewater 机翻标题: 暂无翻译,请尝试点击翻译按钮。

来源
Journal of Membrane Science
年/卷/期
2018 / 563 /
页码
521-530
ISSN号
0376-7388
作者单位
Natl Univ Singapore, Dept Chem & Biomol Engn, 4 Engn Dr 4, Singapore 117585, Singapore;Natl Univ Singapore, Dept Chem & Biomol Engn, 4 Engn Dr 4, Singapore 117585, Singapore;Wuhan Univ, Coll Chem & Mol Sci, Minist Educ, Key Lab Biomed Polymers, Wuhan 430072, Hubei, Peoples R China;Wuhan Univ, Coll Chem & Mol Sci, Minist Educ, Key Lab Biomed Polymers, Wuhan 430072, Hubei, Peoples R China;Natl Univ Singapore, Dept Chem & Biomol Engn, 4 Engn Dr 4, Singapore 117585, Singapore;Wuhan Univ, Coll Chem & Mol Sci, Minist Educ, Key Lab Biomed Polymers, Wuhan 430072, Hubei, Peoples R China;
作者
Chung, Tai-Shung;Zhang, Yu;Li, Jia Le;Cai, Tao;Cheng, Zhen Lei;Li, Xue;
摘要
In recent years, pressure retarded osmosis (PRO) has drawn considerable attention due to its feasibility of harvesting clean and sustainable osmotic power through a membrane process. When municipal wastewater is fed into this process, fouling in the porous substrate of the PRO membrane is the major concern since it can hinder the membrane performance tremendously and lower the power generation. In this work, sulfonated hyperbranched polyglycerol (SHPG) polymers with a dendritic architecture have been molecularly designed and then grafted onto the surface of polydopamine (PDA) coated poly(ethersulfone) (PES) hollow fiber membranes. Comparing to the pristine PES membranes, the SHPG modified PRO membranes show significantly improved resistance to protein adhesion and bacterial attachment due to the high wettability of their ionic polymer brushes. In PRO tests under different hydraulic pressures, the SHPG-grafted membranes show a lower flux reduction and a higher flux recovery rate of 94% vs. 87% in comparison with the pristine PES membranes. Therefore, the osmotic power generation can be significantly sustained by modifying the PRO membranes with SHPG polymers. This work may provide a versatile approach and useful insights for the design of membranes with antifouling properties in the molecular level.
机翻摘要
暂无翻译结果,您可以尝试点击头部的翻译按钮。
关键词/主题词
Pressure retarded osmosis;Antifouling;Municipal wastewater;Sulfonated hyperbranched polyglycerol;Osmotic power;
若您需要申请原文,请登录。

最新评论

暂无评论。

登录后可以发表评论

意见反馈
返回顶部