岩-土介质中Cr~（6＋）、Mn~（2＋）复合污染的吸附相关性研究

目的]探讨岩-土介质中Cr6＋、Mn2＋复合污染的吸附相关性。方法]通过单一Cr6＋、Mn2＋及Cr6＋、Mn2＋复合污染吸附试验,研究Cr6＋、Mn2＋复合污染的吸附规律,并采用相关分析和回归分析法分析Cr6＋、Mn2＋的吸附相关性。结果]吸附试验对比分析表明,在单一和复合污染吸附试验中,Cr6＋、Mn2＋在吸附时间、总吸附量、吸附速率方面存在明显差异;相关分析表明,Cr6＋、Mn2＋呈显著正相关,通过回归分析进一步确定两者存在加和作用,即在Mn2＋存在的情况下,能够增强供试土壤对Cr6＋的吸附作用。结论]该研究为今后环境治理及环境管理等提供了科学依据。

Correlation between Cr6+ and Mn2+ Adsorption in Rock-soil Medium with Combined Pollution

Objective] The aim was to study the correlation between Cr6+ and Mn2+ adsorption in rock-soil medium with combined pollution.Method] Combining single Cr6+ and Mn2+ adsorption test with combined pollution test,the adsorption laws of Cr6+ and Mn2+ were studied,and the correlation between Cr6+ and Mn2+ adsorption was analysed by using correlation analysis and regression analysis.Result] According to the comparative analysis on adsorption tests,the adsorption time,adsorption amount and adsorption speed of Cr6+ and Mn2+ were obviously distinct in single adsorption test and combined adsorption test.Correlation analysis revealed that there was a significant positive correlation between Cr6+ and Mn2+,and there existed addition effects between Cr6+ and Mn2+ by regression analysis,that is,the adsorption of Cr6+ by the test soil would be enhanced by Mn2+.Conclusion] The research could provide scientific references for environmental control and environment management in future.