研究论文
罗敏,侯立安,王占生.纳滤膜对有机物的截留机理研究[J].环境科学学报,2000,20(5):523-527
纳滤膜对有机物的截留机理研究
- A study on organics rejection mechanism by nanofiltration membrane
- 罗敏
- 清华大学环境科学与工程系, 北京 100084
- 王占生
- 清华大学环境科学与工程系, 北京 100084
- 摘要:选用美国TriSep公司TS80纳滤膜, 在操作压力0.7MPa下考察了纳滤膜对有机物的截留机理.TS80纳滤膜对TOC的平均去除率为90.3%, 根据色谱质谱联机分析结果可知, TS80纳滤膜能使色谱质谱峰丰度降低50%左右, 其对有机物的去除是由有机物的结构特征(如分子量、极性)与有机物同膜间的相互作用关系共同决定的.
- Abstract:A study evaluated organics rejection mechanism by TriSep company's TS80 nanofiltration membrane at 0.7MPa operating pressure. The average removal of TOC is 90.3%. The GC/MS results indicates that TS80 nanofiltration membrane may reduce approximately 50% abundance and the organic rejection by TS80 is determined by it's structure characteristics(e.g., molecular weight, polarity) and the interaction between organics and membranes.
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