Fe6+对土壤中Cu2+浓度动态变化的影响

为了探究高铁酸钾(Fe~(6+))对于Cu~(2+)在土壤垂直方向上迁移时浓度的影响,采用土柱实验,通过加入薄层示踪剂(Cu~(2+)、Fe~(6+)),以研究Cu~(2+)溶液在下渗过程中浓度的变化,以及Fe~(6+)对其下渗过程中浓度变化的影响;同时探求高铁酸钾(Fe~(6+))对铜污染土壤进行修复时的最佳使用量和最佳作用时间。实验结果表明,Fe~(6+)十分显著地提高了土壤对于Cu~(2+)的吸附作用,有效地控制了Cu~(2+)在土壤中的向下迁移,Fe~(6+)作用于铜污染土壤的最佳使用浓度为100 mg/L,最佳作用时间为5 h。

The Effect of Fe6+ on the Dynamic Concentration Variation of the Cu2+ in Soil

To explore the affect about the vertical migration of Cu₂₊ in soil under the influence of potassium ferrate (Fe₆₊), this experiment takes soil columns to study the change of the concentration of Cu₂₊ solution in the process of infiltration, Fe₆₊ on its concentration change in the process of infiltration, and to seek for the best dosage and best effect time after potassium ferrate (Fe₆₊) used into copper contaminated soil by adding thin layer of tracer (Cu₂₊, Fe₆₊). The results show that Fe₆₊ significantly improves the adsorption of soil to Cu₂₊, effectively control the downward migration of Cu2+ in soil. The best concentration of Fe₆₊ is 100 mg/L and the best function time is 5 hours.