Environmental performance of biological nutrient removal processes from a life cycle perspective

- Four wastewater treatment plants were simulated using GPS-X software.
- Each evaluated alternative was composed of liquid and biosolid effluent subsystems.
- Energy usage was the main issue that impacts in Life Cycle Assessment Impact.
- Inclusion of BNRP improves effluent quality.
- The 5-stage Bardenpho produce the most enriched biosolid.