苯酚、苯在水/阴离子有机膨润土界面的环境行为研究

Study on Sorption Behaviours of Phenol and Benzene to Anion Organobentonite

研究了苯酚在水/阴离子有机膨润土界面的吸附行为,初步探讨了阴离子有机膨润土对苯酚、苯的吸附性能、机理及影响因素。结果表明,阴离子表面活性剂改性后,膨润土中有机碳含量增加了10-38倍,对苯酚、苯的吸附能力大大提高。水中苯酚、苯在水/阴离子有机膨润土界面的吸附行为主要是分配作用所致,其吸附等温线呈线性。

Study on sorption behaviors of phenol to anion organobentonites have been conducted. The sorption properties, mechanism and influence factors of phenol and the sorption mechanism of benzene to anion organobentonites were discussed. The results indicated that organic carbon content of anion organobentonites were 10-38 times more than that of original bento-nite. The sorption capacities of phenol to anion organobentonites could be affected by acidity, salinity, temperature and concentration of anionic surfactant solution. The fit temperature of action was 25 -45℃. Sorption isotherms of phenol and benzene to anion organobentonites were linear, contribute to partition. They were related to the properties of organic compound and anionic surfactant, as well as the modified conditions.