Research on the Spatial Distribution Characteristics and Adsorption Laws of Lead in Typical Lead Smelters
This paper points out that the accumulated smelting slag from abandoned lead smelters still causes continuous and serious environmental pollution.Therefore,this paper aims to explore the spatial distribution characteristics of the main pollutant lead in the soil of smelters at different soil depths and study its adsorption behavior.The results show that the average lead content in the soil of the smelter is 1921.77 mg/kg,and the surface soil exceeded the standard by 51%.The maximum value is 725 times higher than the background value of the soil in Henan Province,and the lead content gradually decreases with the increase of soil depth;There are significant spatial differences in lead content in the surface soil,with severe soil pollution in the northwest direction(i.e.the location of the factory),and functional zoning having a significant impact on lead pollution.This paper further explores the influence of lead mass concentration on adsorption capacity through adsorption experiments,and the research results can provide a certain theoretical basis for the remediation and treatment of lead pollution in smelter soil.
leadsoilsoil pollutionspatial distribution characteristicsadsorption law
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