Scott Landers

Document Type

Honors Thesis


High levels of phosphorus in effluent wastewater can lead to eutrophication, the excessive growth of algae, which can choke out other aquatic life from receiving waters if the wastewater is not treated for phosphorus removal. Enhanced biological phosphorus removal (EBPR) is a process through which phosphorus accumulating organisms (PAOs) take up and store phosphorus which is contained in influent. The PAOs are wasted from the system through a waste activated sludge system, removing phosphorus from the wastewater. For the design of an expansion to the Pflugerville Central WWTP, an A2O process was specified, where three basins in sequence provide biological phosphorus removal of influent wastewater to meet the permit limit of 1 mg/L.

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