Abstract
Enhanced Biological Phosphorous Removal (EBPR) is a complex process with many different configurations, operational strategies, and difficulties. The advantages and disadvantages between two different operational schemes were tested and compared under variable anaerobic mass fraction to understand several of the factors which contribute to EBPR process success. This research identifies key metrics which can be used to diagnose process health such as anaerobic ORP, phosphorous release, Polyhydroxy alkenoate (PHA) production, and PHA in the Return Activated Sludge (RAS).