A Concept-Based Environmental Project for the First-Yeat Laboratory: Remediation of Barium-Contaminated Soil by In Situ Immobilization

摘要

Environmental problems provide an excellent vehicle for teaching concepts and techniques in the first-year laboratory. We report a project based upon the remediation of heavy metals in soil, wich has a firm grounding in solubility and precipitatio reactions based upon relative solubilities. The project provides experience in determining solubilities and exploring precipitation reactions that can be used to precipitate a heavy metal ion. It also provides experience in both qualitative and quantitative analyses based upon relative solubilities. Importantly, it provides experience dealing withan environmental problem.