天然和CPB改性沸石对Hg2+的吸附特征OA北大核心CSCDCSTPCD
Adsorption characteristic of mercury (Ⅱ) on natural and CPB modified zeolite
通过静态实验研究溴代十六烷基吡啶(CPB)改性沸石和天然沸石对废水中Hg2+的吸附特性,探讨了吸附动力学、吸附平衡和吸附热力学机制.研究表明:Langmuir方程能较好地描述2种沸石对Hg2+的吸附,CPB改性沸石对Hg2+的吸附率得到显著提高.实验条件下,改性沸石对Hg2+的吸附率从67.5％提高到98.9％,吸附容量从0.521 mg/g提高到3.07 mg/g.利用准一级动力学方程、假二级动力学方程、颗粒内扩散模型和Elovich方程分别对…查看全部>>
The adsorption of mercury ions on the natural zeolite and CPB modified zeolite was investigated by conducting a series of batch adsorption experiments. The adsorption kinetics, adsorption equilibrium, thermo-dynamic behavior and mechanism were discussed. Results showed that the equilibrium data of the two kinds of zeolites were well fitted with Langmuir equation. CPB modified zeolite can significantly improve the adsorption of Hg2+ . The adsorption rate of H…查看全部>>
黄慧;郝硕硕;朱家亮;申源源;王志刚;陈宏
西南大学资源环境学院,重庆400716重庆市农业资源与环境研究重点实验室,重庆400716
资源环境
沸石CPBHg2+吸附
zeolite CPB Hg2+ adsorption
《环境工程学报》 2013 (2)
579-584,6
国家大学生创新基金项目(101063503)
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