Modified Ludzack-Ettinger Process: Nitrogen Removal in Wastewater Treatment Fundamentals of the MLE Process The Modified Ludzack-Ettinger (MLE) process isn’t just a fancy term tossed around in wastewater treatment circles; it’s a game-changer for municipalities grappling with nitrogen removal. Picture this: a mid-sized city with a population of 100,000 is facing strict new regulations on nitrogen […]