Membrane Science and Technology

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The latest progress and applications of seawater RO membrane technology

Authors： Xu jianguo1 Yin hua2

Units： 1.Environment science and engineering institute -Tongji university- Shanghai 200093.2. Toray Bluestar Membrane Co., Ltd.-Beijing 101318

KeyWords： RO membrane, seawater desalination, energy-saving high flux, high desalination, high boron-removal

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2014, 34(2):99-105

Abstract：

Reverse osmosis (RO) membrane is one of the most effective technical to relief the global water crisis. Energy-saving and high desalination are two major challenges in seawater desalination by RO membrane; however, there is a departure from the balance between water production and solute removal. In Toray we use positron annihilation spectroscopy (PALS) to analysis the membrane pore, the results of the research show a good correlation of boron-removal between the membrane pore size and the RO membrane; and we also use transmission electron microscope (TEM) to analysis the surface of the RO membrane structure and morphological to gain the parameters affecting the membrane permeable. On the basis of the above results, Toray apply the molecular design technology in the development of seawater desalination RO membrane. We have made great progress in RO membrane solute removal and permeability. With all these research results, Toray develop a innovative RO membrane which is particularly suitable for seawater desalination . The membrane has been used in the world's largest seawater desalination project (Magtaa, 500,000 m3/d in Algeria) and Chinese largest seawater desalination project (Qingdao, 100,000 m3 /d).

Funds：

AuthorIntro：

徐建国（1983- ），男，安徽人，主要研究方向：膜法水处理技术。

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