摘要
采用恒温振荡平衡法研究了乐山市某一水田土壤和未种植过的土壤对铜离子的吸附特性。结果表明:溶液的pH值越大,土壤对铜离子的吸附量越大;铜标准溶液的初始浓度越大,土壤对铜离子的吸附量越大;土壤含腐殖酸越多,对铜离子的吸附能力越强;水田土壤比未种植过的土壤对铜离子的吸附能力更强;用Freundlish方程来描述各种土壤对铜离子的吸附特性均得到了较好的相关性。
Absorption properties of Cu2＋ in soil from a paddy field and the soil which has not been planted in Leshan were studied by temperature oscillation balance method. The results showed that absorption of Cu2＋ increased with the increase of pH and initial Cu2＋ concentration. The more humic acid the soil contains, the stronger adsorbing capacity on Cu2＋ the soil has. Paddy soil has greater adsorbing capacity on Cu2＋ than which has not been planted. Preferable correlations were obtained by describing a variety of soil adsorption characteristics of Cu2＋ by Freundlish equations.
出处
《环境科学与管理》
CAS
2011年第11期120-124,共5页
Environmental Science and Management
关键词
土壤污染
铜离子
吸附性能
soil pollution
Cu2＋
adsorption characteristics
