Industrial development provides benefits to society, but also leads to significant environmental changes often traduced in reducing the quality of soil, air, and water. In this scope, industrial activities, mining and agricultural sectors can be cited. Nanostructured materials have been receiving significant attention for remediation of degraded areas and treatment of liquid effluents. Materials like zero-valent iron nanostructured have been demonstrating significant potential for pollutant degradation. The use of zero-valent iron nanoparticles represents a promising technology for environmental remediation. However, their properties and reactivity are not yet fully understood, in particular its use in distinct applications. The aim of this work is to synthesize zero-valent iron nanomaterials and evaluate their use in recovering degraded areas, immobilization of Arsenic in contaminated soils, and removal of AOX in industrial effluent treatment systems.