Impact of precipitation pH of hydrated ferric oxide on calcium-enhanced phosphate adsorption from water

Key Points

• Phosphate adsorption is significantly influenced by the precipitation pH of hydrated ferric oxide, particularly with calcium.
• The optimal pH range for maximum phosphate removal was identified in the analysis using ferric oxide.
• This analysis included a variety of pH levels, examining their effects on the calcium-enhanced adsorption process.
• Findings suggest that adjusting precipitation pH may enhance phosphate removal efficiency in water treatment.