Process control is key to maximizing wastewater treatment efficiency while minimizing operating costs. Implementing the right process control system in conjunction with the right equipment can save money on electrical costs and equipment maintenance.
The wastewater plant for the city of Dawson, MN, uses a Tri-Oval® oxidation ditch from Aire-02 for primary treatment of its wastewater. The plant was brought on line in November 2004. Wastewater entering the plant is a combination of approximately 60% municipal and 40% food processing wastewater from a local soybean processing plant. Influent quality is relatively constant because the wastewater plant receives wastewater year-round from the soybean.