关键词: 纳滤, 小分子有机物, 盐, 截留率, 膜分离

Abstract: This paper summarized the separation mechanisms of small molecular organic compounds (such as sugars，amino acids，PEG，dyes) and electrolyte salt with nanofiltration membranes. This paper reviewed the development of the small molecular organic and electrolyte salt mixtures separations. The key factors of the separation of organic/inorganic complex system using nanofiltration technologies，such as separation mechanism，preparation of membranes with high performance，expanding the solute types and different conditions were also discussed. The application of the separation form the complex system by nanofiltration membrane was prospected.

Key words: nanofiltration, small molecular organic compound, salts, retention, membrane separation