Enhanced Biological Phosphorus Removal (EBPR) is a biological process used in wastewater treatment to remove phosphorus from wastewater using specific microorganisms called polyphosphate-accumulating organisms (PAOs). The process involves two key phases: an anaerobic phase and an aerobic phase. In the anaerobic phase, the PAOs are subjected to conditions without oxygen and in the presence of readily biodegradable organic carbon, typically in the form of volatile fatty acids (VFAs) like acetate. Under these conditions, PAOs uptake the VFAs. To gain the energy needed for this uptake, they break down their internal stores of polyphosphate (poly-P). Polyphosphate is a long chain of phosphate molecules linked together. The breakdown of polyphosphate ....
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