锰矿冶炼中Fe、Mn对周边土壤的影响

Effect of Fe and Mn on the Soil Surrounding the Mn Smelting Plant

通过对某锰矿冶炼厂周边地区土壤中铁锰元素的分析,发现冶炼厂周围土壤受锰矿冶炼厂的污染。含大量铁锰元素的粉尘、矿渣等进入土壤,使土壤中铁锰元素显著增加。实验结果显示:该冶炼厂附近土壤受Fe、Mn元素污染较重,土壤中铁锰含量分别为20250.78￣28426.06mg·kg-1、674.41￣4467.66mg·kg-1,已超出正常范围。冶炼厂粉尘中铁锰含量分别为78425.51￣78800.34mg·kg-1、100052.02￣100286.13mg·kg-1,矿渣中铁锰含量分别为2955.35￣3076.58mg·kg-1、7901.24￣8012.12mg·kg-1。土壤中铁锰含量与粉尘、矿渣中铁锰含量具有一定的相关性。该冶炼厂周围土壤已受到一定程度的污染。

Mn and Fe dements in the soil surrounding a Mn Smelting plant were analyzed in this paper.We found that dust and slag containing Fe and Mn dements went into the soil and lements of Fe and Mn increased significantly the soil was polluted. The experimental results showed that contents of Fe and Mn in soil surrounding the Mn smelting plant were 20250.78-28426.06 mg ·kg^-1 and 674.41- 4467.66 mg ·kg^-1 respectively, which exceed the normal scope. The contents of Fe and Mn in the dust of the Mn smelting plant were 78425.51-78800.34 mg·kg^-1 and 100052.02-100286.13 mg·kg^-1 respectively, while thuse in the slag were 2955.35-3076.58 mg ·kg^-1 and 7901.24-8012.12 mg ·kg^-1 respectively. The contents of Fe and Mn in the soil were con＇elative with those in the dust and the slag, The soil surrounding the smelter had been polluted in some degree.