Murray Bee Creek Water Resource Recovery Facility Expansion (8.75 MGD), Murray, KY
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.