Location: City of Wyoming Clean Water Plant | Wyoming, Michigan
Plant Size: 90 MGD
Installation: 2019 (1) THK350 Sludge Thickener
- Feed @ 0.6-1.2% TS
- 240 gpm average
- 95% capture
- <1 lb/ton polymer, active
- <0.12 kW/gpm
- 6.5% TS TWAS
PROBLEM
Two aging Bird 5100 modified dewatering centrifuges were needed to thicken WAS sludge to a total flow of 240 gpm. Each of the older Bird centrifuges operated at 80 kWh with a flow of 120 gpm. The large, accelerated mass and the relatively low flow rate of each unit were the primary sources for the plant’s high power consumption.
RESULTS
- Installation of one THK350 replaced two large Bird 5100 centrifuges
- Awarded an energy reduction grant due to the 75% power reduction, saving up to $88,300/yr ($0.08 kW/h)
- Solids discharge controlled for either off-site or land application via the patented hydro-pneumatic air which further fine-tunes the sludge control
- 3.5-4.5% TS for off-site pumping
- 5.5-6.5% TS for land application
