Resource potential and application trend of remediation of heavy metal pollution control in red mud soil
Red mud is alkaline material,it is important to explore the potential of red mud application in soil heavy metal pollution treatment,expand the use of red mud resources and alleviate the environmental pressure of red mud solid waste and soil heavy metal remediation.According to the nature of red mud resources and environmental characteristics,through the review of relevant domestic research literature,from the red mud component characteristics,structural characteristics and activation characteristics,this study explores the role and efficacy of red mud used in remediation of heavy metal.The potential for application of red mud in the remediation of heavy metal pollution are sorted out systematically from the environmental risk of red mud,modified red mud materialization,and remedial modes of multiple technologies.The remediation of red mud is proposed in the heavy metal contaminated soil.Red mud has strong alkalinity,which can neutralize soil pH and reduce the bio-availability of heavy metal ions directly in the soil.In addition,red mud has stable components,high specific surface area and strong alkalinity.Red mud provides adsorption sites for heavy metal remediation and has the potential function of adsorbing heavy metal ions in the soil under certain conditions.Meanwhile the research and development of red mud modified materials by using red mud void structure will help to expand the application of red mud materialization.Functional materials of red mud have potential application value in heavy metal control,which can help reduce red mud environmental risks.
Red mudresourceheavy metal remediationfunctionalizationapplication potential
NETL
NSTL
万方数据
