Problem: Positioned early in the wastewater treatment process, splitter boxes are subject to significant abrasive force and exposure to highly corrosive influent. At the Lake City (Florida) Wastewater Treatment Plant, a splitter box’s prior coal tar epoxy lining system failed, resulting in widespread pitting of the underlying steel. An immediate repair was necessary, and plant managers sought to minimize the impact of any potential disruptions that would result.
Solution: Plant managers chose the spray application of Carboline’s Hydroplate 6500. Hydroplate 6500 is a premium-grade, ultra-durable epoxy lining suited for concrete and steel surfaces in aggressive, hydrogen-sulfide-rich municipal and industrial wastewater environments. Two features were crucial to this project: First, its rapid-cure formula minimized the length of time plant operators needed to partially shut down the splitter box. Second, it achieves film builds as high as 250 mils on a single pass at comparatively low pump pressures — around 3,000 psi, and often less than that. The result is a significant reduction in fatigue of spray applicators, leading to overall faster and higher quality work for time-sensitive projects.
Result: Only short partial shutdowns of the splitter box were necessary. With no full shutdown, there were no disruptions to wastewater treatment. 800-848-4645; www.carboline.com
