摘要
研究了大工山古铜遗址区矿区土壤对铜的吸附特性。结果表明:遗址区土壤对铜的吸附等温线大多为"L"型等温线,即土壤对铜的吸附量随吸附平衡浓度的增大而增加,平衡浓度较低时,土壤对铜的吸附量随平衡浓度的增大而迅速增加,随平衡浓度的逐渐增加,土壤对铜的吸附量增加变慢。土壤对铜的吸附可用Langmuir方程、Freundlich方程和Temkin方程来描述,其中Freundlich方程优于Langmuir方程和Temkin方程。
The adsorption characteristic of Cu by soils in Dagongshan ancient copper mine sites was studied in this paper. The results showed that the most of mining area soil to copper adsorption isothermal is the ＂L＂ isothermal. The adsorption of copper in soil was increased along with adsorption equilibrium density. When the equilibrium density is low, the adsorption of copper in soil rapidly increases along with equilibrium density. When the equilibrium density gradually increased, the adsorption of copper in soil was slowed down. The adsorption of copper in soil was described by Langmuir equation, Freundlich equation and Temkin equation. The Freundlich equation is more fit for the curve than Langmuir equation and Temkin equation.
出处
《黑龙江科学》
2013年第4期25-27,共3页
Heilongjiang Science
基金
国家自然科学基金项目"极化区生态安全格局演化过程
测度与机制研究--以皖江城市带承接产业转移示范区为例"(41201186)
关键词
古铜矿遗址区
重金属
吸附
铜
Ancient copper mine sites
heavy metal
adsorption
Cu
