文献类型：会议论文

英文题名：Effects of inorganic on RO membrane initial biofouling formation

作者：Han Yongping[1]; Lin Qiang[1]

第一作者：韩永萍

机构：[1] Bio-Chem. Eng. Coll., Beijing Union Univ., Beijing, China

第一机构：北京联合大学生物化学工程学院

会议日期：11-16 June 2009

会议地点：Beijing, China

语种：英文

外文关键词：biomembranes - biotechnology - Fourier transform spectra - infrared spectra - microorganisms - molecular biophysics - scanning electron microscopy - X-ray chemical analysis

摘要：In this paper inorganics effects on RO membrane biofouling formation, especially the initial stages, was researched. Three independent experiments setups were respectively conducted to dispose of ground water and synthetic water. At last, the microstructure of fouled RO membrane surface was scanned by SEM, and the element of foulant were inspected by EDX and the organics were analyzed by GC/MC and FTIR. The result showed that the precipitated salts contribute more than microorganism to initial biofilm buildup, but bacterial counts were more favor of biofilm growth on the RO membrane surface. The primary ingredient of foulant comprised albumin, aromatic organics, fatty acid and little polysaccharides besides little inorganics such as Si, Ca. The biofilm buildup on the membrane surface was the synergistic function of inorganic salts with microorganism and organic macromolecules.