Iron–Magnesium Bimetallic Biochar Composites Derived from Conocarpus Waste for Enhanced Phosphate Removal: Insights into the Underlying Adsorption Mechanisms in Aqueous Solution
Phosphate enrichment of surface waters is a major cause of eutrophication, creating demand for low-cost materials that support phosphorus removal and recovery. In this study, Conocarpus waste biochar (CBC) was modified with iron (Fe-CBC), magnesium (Mg-CBC), and both metals (FeMg-CBC) to improve phosphate adsorption. F...