摘要
分别在静态和动态下,研究了泥煤对N i2+的吸附和解吸特性。结果表明,N i2+在泥煤上有较好的吸附和解吸性能,pH值是影响吸附和解吸的主要因素,静态吸附动力学用E lovich方程描述最为合适,静态解吸动力学用动力学二级方程描述最为合适;动态试验法吸附含N i2+20 mg/L的溶液,工作吸附容量为6.0 mg/g,吸附饱和的泥煤用0.1 mol/L的盐酸洗脱,洗脱率为99.24%,可富集浓度达417.1 mg/L。
The paper studied the adsorption and desorption characteristics of nickel to peat individually in static and dynamic states. The results showed that the nickel would have a good adsorption and desorption to nickel. The pH is the main factor influenced to the adsorp- tion and desorption. The static adsorption dynamic can be suitably stated with Elovich equation and the static desorption dynamic can be suitably stated with the secondary equation of the dynamic. The dynamic experiment method would have a nickel adsorption with a solution of 20 mg/L and the work adsorption solution would be 6. 0 mg/g. The adsorption saturated peat would be washed with 0. 1 mol/L hydrochloric acid and the washing rate would be 99. 24 %. The rich density would be 417. 1 mg/L.
出处
《煤炭科学技术》
CAS
北大核心
2006年第6期46-49,53,共5页
Coal Science and Technology
基金
核资源与环境教育部重点实验室科研基金项目(051104)
东华理工学院博士基金项目(DHB0504)
关键词
泥煤
镍离子
吸附
解吸
peat
nickel ion
adsorption
desorption
