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泥煤对镍吸附作用的研究
引用本文:刘峙嵘,周利民,韦鹏,何丽.泥煤对镍吸附作用的研究[J].矿冶工程,2006,26(5):53-56,60.
作者姓名:刘峙嵘  周利民  韦鹏  何丽
作者单位:东华理工学院,应用化学系,江西,抚州,344000;东华理工学院,应用化学系,江西,抚州,344000;东华理工学院,应用化学系,江西,抚州,344000;东华理工学院,应用化学系,江西,抚州,344000
基金项目:国家留学基金委资助(22307s05);东华理工学院博士基金资助(DHB0504);东华理工学院核资源与环境中心基金资助
摘    要:在介质pH=6~8左右时,泥煤吸附镍的吸附量最大,在pH〈6时,随着介质pH值的升高,吸附量增加。介质的离子强度升高可以使泥煤对镍的吸附量迅速降低。温度升高可以使泥煤吸附镍的量降低。吸附液镍浓度升高,泥煤吸附镍量增加。泥煤对溶液中Ni^2+的吸附符合Freundlich吸附等温方程,泥煤对Ni^2+的吸附过程是比较快的。

关 键 词:泥煤    吸附
文章编号:0253-6099(2006)05-0053-04
收稿时间:2006-03-05
修稿时间:2006-03-05

Study on the Adsorption Characteristics of Nickel on Peat
LIU Zhi-rong, ZHOU Li-min, WEI Peng, HE-li.Study on the Adsorption Characteristics of Nickel on Peat[J].Mining and Metallurgical Engineering,2006,26(5):53-56,60.
Authors:LIU Zhi-rong  ZHOU Li-min  WEI Peng  HE-li
Affiliation:Department of Applied Chemistry, East China Institute of Technology, Fuzhou 344000, Jiangxi, China
Abstract:Nickel can be enriched on peat and the maximum adsorption capacity can be achieved when the pH range of the solution is 6 to 8.When pH<6,the adsorbed nickel increases along with rising pH.The enhancement of ion strength in the medium can cause a sharp decline of adsorption and a similar effect can be observed with the heightening of solution temperature.The nickel adsorbed on peat increase together with the raise of nickel concentration in the solution.The adsorption isotherm of Ni~(2+) onto peat conforms to Freundlich adsorption isothermal equation,and the adsorption process is comparatively rapid.
Keywords:peat  nickel  adsorption
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