摘要
研究了铜在鄱阳湖姚公渡沉积物上的吸附与释放特性。研究发现,鄱阳湖沉积物对铜的吸附符合Langmuir和Freundlich模型,在2h内,溶液吸附趋于平衡;对铜的释放分快速反应和慢速反应阶段,最佳释放时间为3h。并研究了各因素对沉积物吸附与释放的影响,pH值对沉积物中铜吸附与释放的影响显著。
The adsorption and release characteristics of copper on Yaogongdu sediments in Poyang lake are studied. Isothermal adsorption shows that adsorption of copper on Poyang lake sediments accords with the Langmuir and Freundlich model, solUtion adsorption tends to reach a dynamic equilibrium in two hours; In addition, the release of copper hasquick and slow reaction phase, the best release time is three hours. The factors affecting adsorption and release are studied, pH is the remarkable one.
出处
《铜业工程》
CAS
2009年第1期44-48,共5页
Copper Engineering
基金
教育部科学技术研究重点项目资助(204076)
江西省教育厅科学技术项目资助
关键词
沉积物
铜
吸附
释放
sediment
copper
adsorption
release
