Redfield, South Dakota
20 Acre Wastewater Lagoon
2 Shallow-Flo Mixers
INSTALLATION SEPTEMBER 2025
Wastewater lagoons experience severe odor issues primarily when excessive sludge accumulation depletes the operating volume, creating persistent anaerobic (oxygen-free) zones near the water surface. For a non-discharging (total retention) system like the one in Redfield, South Dakota, managing this volume is critical because the system relies completely on a balance between influent, solar evaporation, and percolation.
Shallow-Flo Solution!
Increase mixing and circulation as a means of adding oxygen in the upper 1/3rd
of the cell while increasing wind and wave action and reducing sludge volume.
Accelerate the rate of BOD reduction while reducing algae levels, reducing pH
and increasing volatilization of NH3 to the atmosphere.
Improve fall and spring discharge options through better winter processing
and thereby making system management easier and more efficient.