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Literature Review & Summary Report Design Basis Memorandum St. Johns River Water Management District Contract # SK940AA

BCI Project No. 19-15089 September 2007 Page 17

Figure 12 Bucher Press

    • 2.5

      Integrated Systems

      • 2.5.1

        Equipment Type – Genesis Rapid Dewatering System The Genesis Rapid Dewatering System is a complete process for lake and waterway

clean up and restoration. Each Genesis dewatering unit can continually process and recover sediments at dredge operating rates of approximately 2500-5000 gallons per minute, and 150- 250 cubic yards per hour. Multiple units may operate in unison to increase processing rates. Recovered sediments include coarse debris to gravel to sand and fine sediments (clays, silts, and organics). The system includes a group of conditioning and settling equipment and processes that work in series. The series includes a vibrating screen for coarse debris removal (Figure 13); a sand separator and polymer injection followed by an inclined static screen.

The Genesis Rapid Dewatering System produces a reusable stackable solid (40-45%) that is truckable for easy disposal. Consolidated material is usually 50%-65% solids by volume. Return water is clear and turbidity levels are less than 30 ppm total suspended solids, which meet or exceed typical discharge standards. Coupled with a state-of-the-art solids monitoring system and polymer instrumentation package, the Genesis RDS integrated technology adapts to a dredge flow of 2-18% solids by volume. All Genesis RDS equipment can be located on an operational footprint of 150 x 150 feet enabling the mobile dewatering unit to be set up in areas with limited space; of if necessary, on barges.

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