Soil heavy metal stabilization and remediation

In this study, three kinds of multi-metal simultaneous stabilization remediation materials were developed for three different types of contaminated soils, namely, arsenic-antimony ( anionic ) contaminated soil, cadmium-lead-copper-zinc ( cationic ) contaminated soil, and cadmium-lead-copper-zinc-arsenic-antimony composite contaminated soil. The immobilization behavior and mechanism of the remediation materials on heavy metal ions were analyzed. The stabilization effect of remediation materials on soil heavy metals and its potential ecological impact on soil environment were evaluated from the perspectives of heavy metal leaching toxicity, chemical form transformation, soil properties and soil microbial community.