Lime-Softening Plant Takes Advantage of New Batch Lime Slaking System to Ease Maintenance

摘要

Management at a 22 mgd lime-softening plant in Florida City, FL, reports that replacement of its continuous-feed lime slaking system with a new batch-process type has ended heavy maintenance burdens previously endured with the slaking operation, while providing more consistent concentration of calcium hydroxide(hydrated lime) slurry output. The Tekkem Slaker System was manufactured by RDP Technologies of Norristown, PA, under license from PR Stephansen, AS of Norway. Originally built in 1943 as a 6 mgd plant by the U.S. Navy to serve the needs of its submarine base boilers, the facility was turned over to the Florida Keys Aqueduct Authority in 1976. The Authority, which had previously been buying its water from the Navy, then built a new plant, including two slaker systems, in 1989.