Presses provide temporary dewatering after hurricane damage

Problem
Hurricane Sandy wreaked havoc on the Bay Park Long Island wastewater treatment plant in New York. More than 4 feet of water in the solids-handling building wiped out the feed pumps, polymer systems and electrical equipment. Mobile Dredging of Chester, Pa., won a contract for temporary dewatering until the solids building could be rebuilt.

Solution
Mobile Dredging installed four Charter Machine Co. Sentry Tower Presses within eight weeks. The presses are skid-mounted and complete with feed pumps, polymer makeup systems, wash water booster pumps, conveyors and controls. The flexibility of the presses’ three-belt design allows operators to vary the gravity belt speed to optimize solids thickening and maximize solids loading to the pressure section. The units can be equipped with 15 pressure rollers to gain extra time under pressure, leading to drier cake solids and lower hauling costs.

Result
The presses have performed dewatering as required since installation.