Our Expertise > Wastewater Treatment Plant Improvements
Keller worked with the City of Rigby to identify solutions that would meet the new effluent discharge permit at the wastewater treatment plant and support a rapidly growing community.
The Wastewater Treatment Plant Improvements project used innovative technology—Nuvoda Mobile Organic Biofilm, which uses plant material (hemp/kenaf) to enhance biological treatment in an activated sludge system—to meet permit limits and included upgrades that increase the plant’s capacity by approximately four times and provide energy savings and resiliency as the City grows. The updated system is also flexible to handle flow fluctuations based on the time of year and water infiltration.
The project was completed on schedule, with substantial completion by the permit requirements deadline. Project costs were below the budget, and the City used the remaining funds to complete a discharge outlet pipe and purchase new headworks screens. The project was completed through the collaborative and innovative efforts of the construction team, Keller, the City, and the Idaho Department of Environmental Quality.