茶叶渣对Ni(Ⅱ)的吸附动力学及等温吸附模型研究  

Research on the Adsorption Kinetics and Thermal Adsorption Model of Ni(Ⅱ) with Tea Dust

作　　者：马宏飞[1] 李薇[1] 韩秋菊[1] 王健[1] 

机构地区：[1]辽宁石油化工大学化学化工与环境学部,抚顺113001

出　　处：《科学技术与工程》2013年第16期4761-4764,共4页Science Technology and Engineering

摘　　要：研究了茶叶渣对Ni(Ⅱ)的吸附动力学特性。在茶叶渣量1.2 g、pH5.5、温度25℃、吸附时间1 h条件下,研究了不同Ni(Ⅱ)初始浓度(120 mg/L、200 mg/L、320 mg/L、600 mg/L、800 mg/L、1 000 mg/L)的等温吸附曲线。得出了Langmuir、Freun-dlich及Temkin方程的有关参数。研究结果表明,Temkin等温吸附模型符合得更好。The adsorption kinetics character of Ni（Ⅱ） with tea dust has been studied. The thermal adsorption model of Ni（Ⅱ） in the initial concentration of 120 rag/L,200 rag/L,320 rag/L,600 mg/L,800 rag/L, 1 000 mg/L has been investigated in the condition of waste tea dosage of 1.2 g, pH value of 5.5, temperature of 25 ~C, adsorp- tion time 1 h. The relative parameters of Langmuir, Freundlich and Temkin thermal adsorption equation were ob- tained. The result shows that the adsorption behavior of Ni（Ⅱ） with waste tea dust accords with Temkin model bet- ter.

关 键 词：茶叶渣 吸附 Ni(Ⅱ) 动力学 等温吸附模型 

分 类 号：X592[环境科学与工程—环境工程]