The original Bee Creek Water Resource Recovery Facility (WRRF) was constructed in the early 1980’s, expanded in the early 1990’s, and then upgraded again in 2008 with a new biosolids reduction process. GRW has been the engineer for each of the WRRF construction projects, including the most recent 8.75 MGD expansion.
Key features of this expansion include:
- Rotary fan press for sludge dewatering, one of Kentucky’s first implementations
- New preliminary treatment consisting of highly efficient fine mechanical screening (¼” bar spacing with washing and compaction), grit removal (stacked tray with dewatering and compaction), and an influent pump station
- New 3-stage, vertical loop reactor (VLR) provides anaerobic selector basins for biological phosphorus removal and anoxic selector basins with a nitrate recycle for biological nutrient removal (only second VLR in Kentucky)
- Reconditioning of equipment in the five existing clarifiers, as well as three new clarifiers (1- 75’ diameter; 2- 105’ diameter)
- Conversion to ultraviolet light (UV) disinfection
- Expanded effluent pump station
- New return activated sludge (RAS) pump station
- Chemical phosphorus removal for polishing
- New SCADA/instrumentation system
- Non-potable water pump station
- Emergency generator & load bank for testing
- Stormwater pump station
- Site designed to accommodate a future equalization basin to manage the impact of excessive infiltration and inflow
This project was recognized with an award from the Kentucky Chapter, American Public Works Association, 2019 Awards Program.