Wastewater Treatment Plant Expansion, Phase II - Fox Lake, IL
To better serve the residents of Fox Lake and nine surrounding communities, the Village needed to increase the wastewater treatment capacity at the NWRWRF while minimizing costs and maximizing efficiencies. Energy savings were accomplished through a unique design that integrated various plant processes and equipment upgrades to maximize the efficiencies and provide higher quality effluent to the Fox River watershed.
To preserve continuous operations at the plant, Clark Dietz planned and designed construction of these improvements in phases. Prioritizing fiscal responsibility, the phases were aligned with cash flows resulting from immediate cost savings realized in the early phase of the project. With the assistance of Clark Dietz, the Village also received over $500,000 in grants from the Illinois Department of Commerce and Economic Opportunity.
The expansion provided energy savings, sustainable solutions, and increased capacity; resulting in a projected energy savings of $18,600 per month.
- Projected annual electrical savings of 38%.
- Work completed with minimal plant interruption.
- Immediate energy savings contributed to self-financing of project.
- New Modified Ludzack-Ettinger (MLE) process reduces effluent concentrations of nitrogen and phosphorus to safe levels, protecting the Fox River Watershed.
- Fine bubble diffusers and new efficient, VFD equipped high speed turbo blowers reduce demand for oxygen and energy needs.
Solids Handling Expansion
- Digester addition to provide 25% more capacity.
- Improved mixing to optimize both solids digestion and biogas production
- Optimized digesters produce enough wasted biogas to run a 150kW biogas generator.