译 名：
Studies on the Adsorption and Desorption Actions of p-Chloroaniline in Wetland Soil
作 者：
ZHANG Zhi-cheng1,YAO Cheng1,DING Cheng2,JIN Jian-xiang2,3 (1.College of Sciences, Nanjing University of Technology, Nanjing 210009,China; 2.School of Chemistry and Biology Engineering, Yancheng Institute of Technology,Yancheng 224003,Jiangsu,China; 3.Municipal Engineering Department, Southeast University, Nanjing 210000,China)
关键词：
p-Chloroaniline; adsorption; desorption; wetland soil
摘 要：
The adsorption and desorption course of p-Chloroaniline(PCA) on the wetland soil in Yancheng City were studied in this article. The results showed that power function equation(qt=96.168t0.215 8)and secondary equation(1/ ct=0.06+0.001 2t)were the best models for PCA adsorption on the soil in the first hour and one hour later,respectively. Power function equation (qt=14.585e0.231 8t)was the best models for PCA desorption. Adsorption isotherm of PCA on the soil was nonlinearity which could be described by Freundlich equation (cs=21.38ce0.78), adsorption equilibrium constant (Ka) was 21.38. The influence of the ionic strength and solution pH value on the adsorption of p-Chloroaniline also was researched. The results showed that adsorption was positively related to solution pH(pH=5～8), and was negatively related to ionic strength.
