These methods often require additional treatment stages for nitrogen and phosphorus removal. Recent advancements have shown promise in integrating green algae into wastewater treatment systems.

More information: Miiku Takahashi et al, Co-utilization of microalgae and heterotrophic microorganisms improves wastewater ...

Although algae has been an option for nutrient removal in wastewater treatment for decades, its use has been limited because it typically needs large ponds, which require a larger footprint than ...