摘要
通过室内土柱出流实验,分析了重金属离子铜在饱和砂质壤土中的运移行为,发现高浓度的入流液有利于铜离子的运移。同时借助于软件包CXTFIT,用确定性平衡模型和非平衡两区模型对铜离子的出流动态进行了拟合,并预测了土柱不同深度处铜离子浓度随时间的变化过程。结果表明,室内饱和均质条件下,应用确定性平衡模型拟合参数模拟精度要高于非平衡两区模型,可以不用考虑不动水体对铜离子运移的影响。
Copper transport in saturated sandy loam was investigated through laboratory column experiments. The results show that the high inlet concentration of copper enhances the by the deterministic convection-dispersion and deterministic copper transport. The transport process could be characterized two-region nonequilibrium convection-dispersion equation. Meanwhile, the transport processes of copper were simulated and forecasted by using the computer code（CXTFIT2.1 ）. It was found that the deterministic convection-dispersion equation can describe the transport of copper more accurately.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2012年第4期14-17,共4页
Environmental Science & Technology
基金
国家自然科学基金资助(40771095)
关键词
铜
出流实验
运移
模拟
copper
column experiments
transport
modeling ..
