St Augustine, Fla., founded by Europeans in 1565, is the nation’s oldest city. The city is a perfect blend of aging gracefully while staying at the forefront of environmental protection. When this pristine community started experiencing problems with its wastewater treatment system, they found a solution using Aeration Industries’ Aire-O2 Triton process aerators and mixers.
The original municipal wastewater treatment plant was built in the 1950’s and upgraded in 1986. The community boasts great weather, beaches and a myriad of attractions for locals and nearly 2 million tourists. Keeping the city’s wastewater treatment facility in top-notch condition to meet the needs of this fast-paced community is a challenge it met.
The treatment plant consists of two oxidation ditches in a parallel flow system. The current design flow is 5 million gal per day (gpd) of which approximately 95% is domestic sewage. Current average influent concentrations are 190 mg/L BOD, 180 mg/L TSS, and 34 mg/L NH3-N.