POZZOLANIC MATERIALS FOR STABILIZATION /SOLIDIFICATION OF SOIL CONTAMINATED BY HEAVY METALS - A REVIEW
DOI:
https://doi.org/10.31272/jeasd.27.4.6Keywords:
Contaminated soil, metals, pozzolanic materials, stabilization, solidificationAbstract
Soil contamination with heavy metals significantly threatens human health and the ecosystem. Due to the complexity of heavy metal interactions in soils, the mobility, bioavailability, and toxicity of metals in the soil fractions are impacted by several parameters. These parameters include the qualities of both the metal and the soil. However, several remedial methods have been used in immobilization techniques. One of the best techniques is the Stabilization/Solidification(S/S) approach, which is often used to remediate contaminated sites and combines contaminants with binders to reduce the quantity of contaminant leachability through soil matrix and groundwater pollution. As well as to minimize the risks to human health and the environment, alter the metals in the soil to make them less soluble, toxic, or bioavailability. Stabilization aims to change the contaminated material's physical and chemical characteristics to decrease its chemical reactivity or solubility. In contrast, solidification aims to turn contaminants into solids that can be handled easily and contain a few dangerous materials. This review's primary goal is to examine the pozzolanic materials used in the Stabilization/Solidification process and their potential for remediating soil contamination, mainly where heavy metals are present.
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