Phosphorus recovery from high-COD and strongly acidic wastewater by vivianite crystallization: feasibility and optimization of operating conditions

Kun Guo
Acidified oil wastewater contains high concentrations of phosphorus and organic pollutants, which not only pose environmental risks but also contain recoverable phosphorus resources. However, its complex matrix (high COD and acidic environment) poses great challenges to phosphorus recovery technologies. This study successfully developed a new phosphorus recovery strategy adapted to the wastewater characteristics and optimized key operating parameters using response surface methodology. Key param