Written by Kelly Kramer, October 2019
The West Rankin Utility Authority (WRUA) provides services to several communities in Western Rankin County in Mississippi. WRUA generates approximately 10 to 12 million gallons of wastewater each day, which is currently transmitted to the Savanna Street Wastewater Treatment Plant in Jackson. To take advantage of this service, the authority has to pay Jackson, which costs it a few million dollars each year.
In an effort to save costs in the long run, and operate independently, WRUA has decided to build a brand-new wastewater treatment plant of its own. Schwing Bioset is pleased to announce that our team will be part of this project, with WRUA ordering three of our largest dewatering screw presses, the model FSP1203’s.
The FSP 1203’s are designed to handle a capacity of up to 7,468 dry pounds per hour. For West Rankin, the expectation is to process 24 dry tons per day operating at 60 hours per week, dewatering of 0.75% solids WAS with a 17% solids sludge cake output, and a ≥ 90% solids capture rate.
The West Rankin screw press system is designed for continuous dewatering of flocculated slurry and consists of a screw press dewatering unit, a flocculation tank, a rotary lobe sludge feed pump, and a liquid polymer blending system. Slow movement and the high-quality design of the structural components guarantee a high service life, and the back-washing cycle cleans the screens automatically so dewatering operations will not be interrupted during washing cycle.
With the new equipment in the new wastewater treatment plant, Schwing Bioset will be able to help West Rankin to bring its system into compliance with federal water quality laws, increase plant capacity, and save on costs in the long run.