Exploring the Application Status of Iron-Modified Biochar to Remove Heavy Metals from Wastewater

With the rapid development of industrialization, the degree of heavy metal pollution in water bodies has continued to increase, seriously threatening the ecosystem, human health and social development. As an efficient heavy metal adsorption material, iron-modified biochar not only inherits the advantages of the original biochar such as wide sources and developed pore structure, but also enhances the adsorption active sites on the surface of the material through iron modification, effectively overcoming the shortcomings of the original biochar in terms of adsorption capacity and selectivity. Therefore, iron-modified biochar has attracted widespread attention in the field of wastewater treatment in recent years. This paper aims to analyze the preparation method and structural characteristics of iron-modified biochar, and deeply analyze its removal mechanism for heavy metals. At the same time, this paper also discusses the challenges faced by iron-modified biochar in practical applications and looks forward to its application prospects and research directions in heavy metal pollution control. The analysis of this paper can provide an important reference for the application of heavy metal pollution control in water bodies.