摘要
反渗透膜(RO)技术是解决世界水危机问题的最有力的工具之一.反渗透膜法海水淡化过程中节能和高脱盐是需要满足的两个问题,然而产水特性与去除溶质之间存在背离平衡,同时满足会较为困难.东丽采用正电子湮灭时间光谱法(PALS)进行膜孔孔径分析,由此得出膜孔大小和RO膜对硼的去除特性显示出相关性.采用透视电子显微镜(TEM)进行RO膜表面构造和形态学分析,获得影响膜的透水性的参数.在上述研究成果的基础上,把分子设计技术应用于海水淡化的高性能RO膜的开发上,在RO膜溶质去除性和透水性相关方面都取得了很大的进展.同时,使用这些研究成果开发了创新性海水反渗透膜,已经在全球最大的海水淡化项目(阿尔及利亚Magtaa,500 000m3/d)和中国最大海水淡化项目(青岛,100 000m3/d)中得到应用.
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 men：brane; however, there is a departure from the balance between water production and solute removal.In Toray,positron annihilation spectroscopy （PALS） was used to analyze 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 transmission electron microscope （TEM） was also used to analyze the surface of the RO membrane structure and morphology to gain the parameters affecting the membrane permeable. On the basis of the above results, Toray applied the molecular design technology in the development of seawater desalination RO membrane. It have been made great progress in RO membrane solute removal and permeability. With all these research results, Toray developed 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）.
出处
《膜科学与技术》
CAS
CSCD
北大核心
2014年第2期99-105,共7页
Membrane Science and Technology
关键词
反渗透膜
海水淡化
低能耗
高通量
高脱盐
高脱硼
RO membrane
seawater desalination
energy-saving high flux
high desalination
high boron-removal
