【摘要】 通过吸附动力学实验和吸附等温实验,探究了活性炭吸附二氯乙酸(DCAA)和二溴乙酸(DBAA)反应的动力学关系及吸附类型。实验结果表明,活性炭吸附DCAA和DBAA反应更加符合Langmuir等温吸附模型,吸附表现为单分子层吸附;动力学上更符合准二级动力学方程,表现为反应速率主要受内膜扩散控制。更多还原

【Abstract】 The kinetic relationship and adsorption type of dichloroacetic acid(DCAA) and dibromoacetic acid(DBAA) adsorbed on activated carbon were studied by adsorption kinetics experiment and adsorption isotherm experiment. The experimental results show that the adsorption of DCAA and DBAA on activated carbon is more consistent with Langmuir isotherm model, and the adsorption is monolayer adsorption. The kinetic experment is more consistent with the pseudo-second order kinetic model and the reaction rate is mainly controlled by internal diffusion.更多还原