三氯苯在淮河流域(江苏段)沉积物上的吸附特性及影响因素

研究了三氯苯类疏水性有机化合物在淮河流域(江苏段)沉积物上的吸附特性,利用正交设计方法探讨了吸附质初始浓度、吸附剂浓度和pH值等环境因子对吸附过程的影响.结果表明:在本实验条件下,淮河流域(江苏段)沉积物对三氯苯的吸附等温线呈线性,分配作用占主导地位.采用SPSS对正交实验结果进行分析表明:不同环境因子对吸附的影响程度不同.在所考察的环境因子中吸附质初始浓度影响程度最大.在河水中,吸附质初始浓度对三氯苯在沉积物上吸附的影响特别显著,而pH 值对三氯苯在同一沉积物上的吸附几乎没有影响.

Characteristics and Effect Factors for Sorption of Trichlorobenzene on Sediment in Huaihe River (Jiangsu Reach)

The characteristics for sorption of trichlorobenzene on sediment in Huaihe River (Jiangsu reach) was studied.It was also investigated at the same time that some factors of influence on the sorption,such as initial consistence of adsorbate, concertration of adsorbent and pH value, by ortho-experiment. The results indicate that the sorption isotherms of trichlorobenzene to sediment in Huaihe River (Jiangsu reach) are linear in the experiments condition,and distribution plays a leading role. The affected degrees of different environmental factors are different for sorption of trichlorobenzene on sediment in Huaihe River. The results of ortho-experiment are analysis with SPSS(Statistical Package for the Social Science) and the results are indicate that the affection of initial consistence of adsorbate is the biggest in all environmental factors,and initial consistences of adsorbate have expressly significant influence for sorption of trichlorobenzene on sediment in fresh water, and yet the pH has almost no influence for the sorption of trichlorobenzene on same sediment.