2,4-二甲基苯酚在海洋沉积物上的吸附行为

Sorption of 2,4-Dimethylphenol on Marine Sediments

研究了2,4-二甲苯酚(2,4-DMP)在不同方法处理的海洋沉积物上的吸附行为。2,4-DMP的吸附主要是通过沉积物表面和沉积物中有机质的分配作用完成的。无论是Freundlich模型还是Langmuir模型,都适用于描述2,4-DMP在海洋沉积物上的吸附行为。2,4-DMP的吸附行为受盐度和温度等因素的影响。盐析效应随着盐度的增大逐渐显著,吸附量提高。与盐度的影响相反,随着温度的升高,2,4-DMP在海水中的溶解度增大,2,4-DMP的吸附能力降低。

The sorption behavior of 2,4-Dimethylphenol(2,4-DMP)on marine sediments treated by different methods was investigated.Adsorption of 2,4-DMP was completed mainly via the surface and partition function of organic carbon of sediment.Either Freundlich model or Langmuir model was suitable for describing adsorption behavior of 2,4-DMP on marine sediments.The sorption behavior of 2,4-DMP was affected by various factors including salinity and temperature.The salting out effect was gradually obvious with increasing salinity of seawater,which promoted the adsorption.On the contrary,the solubility of 2,4-DMP in seawater increased with the increase of temperature,and the adsorption capacity of 2,4-DMP decreased.