National Study of Nutrient Removal - Fact Sheets

Fact Sheets related to the
National Study of Nutrient Removal and Secondary Technologies

No Plant is Too Small to Optimize: Wisconsin Operator Ingenuity (pdf) (259.18 KB, May 2021, EPA 820-F-20-006)
Description of low-cost adjustments to reduce nutrient pollutant discharges at a sewage treatment plant in Wisconsin. Operators at a small plant reduce phosphorus discharges without any chemical addition.
Optimizing Biological Phosphorus Removal in Minnesota (pdf) (707.62 KB, March 2021, 820-F-20-005)
Description of low-cost adjustments to reduce nutrient pollutant discharges at two sewage treatment plants in Minnesota. Staff successfully reduced phosphorus discharges, stabilized effluent concentrations, and eliminated expensive chemical addition.
Tennessee: Quest for Energy Efficiency Inspires Operators’ Pursuit of Nutrient Removal (pdf) (338.2 KB, January 2021)
Description of low-cost adjustments to reduce nutrient pollutant discharges at a sewage treatment plant in Tennessee. Operators strive to reduce total nitrogen as low as possible while maintaining high biological phosphorus removal.
Kansas: High-Quality Water From Small POTWs (pdf) (749.4 KB, June 2020, 820-F-20-002)
Description of low-cost adjustments to reduce nutrient pollutant discharges at sewage treatment plants in Kansas. Operators draw on outside help—and deploy their own expertise.
Kentucky Operators Take The Lead in Reducing Nutrients (pdf) (510.89 KB, June 2020, 820-F-20-003)
Description of low-cost adjustments to reduce nutrient pollutant discharges at sewage treatment plants in Kentucky. Model results provide a framework for better performance.
Optimizing for Results in Montana (pdf) (306.18 KB, June 2020, 820-F-20-001)
Description of low-cost adjustments to reduce nutrient pollutant discharges at sewage treatment plants in Montana. POTW operators engage with training and onsite assistance.

National Study of Nutrient Removal - Fact Sheets

Effluent Guidelines