Optimizing NaOH or Na2SiO3 Activated Geopolymer for Pb Immobilization: Freeze–Thaw Enhancement and Resistance Mechanisms
The rapid industrialization and urbanization of cold regions have intensified environmental challenges, particularly lead (Pb) contamination from industrial activities. Solidification/stabilization ( S / S ) technology is a widely adopted engineering method for immobilizing heavy metal contaminants, bec...