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。
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.
出处
《矿冶工程》
CAS
CSCD
北大核心
2006年第5期53-56,60,共5页
Mining and Metallurgical Engineering
基金
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
关键词
泥煤
镍
吸附
peat
nickel
adsorption
