Treatment of Municipal Sewage with Microalgae-A Laboratory Based Study

Treatment of municipal sewage with Microalgae removes nutrients like Nitrogen, Phosphorus, Heavy metals and other impurities present in the sewage. Microalgae use the sunlight, CO₂, and impurities present in the wastewater for their growth. The present study shows the treatment of municipal sewage water with Laboratory Based Microalgae treatment System. It was observed that the nutrients (Ammonia and Phosphate) removal efficiency of microalgae-based treatment system for a 3 days batch reactor was about 85-95%. The microalgae treatment system also succeeds to remove 70-87% of COD, BOD and other impurities present in wastewater. It was observed that the microalgae treatment system is economical, green, and environmentally friendly option of wastewater treatment.