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Oklahoma Gas & Electric modifies bottom ash ponds to meet CCR requirements

The Red Rock, Oklahoma plant was upgraded in 2015 to meet the CCR rules. Burns & McDonnell provided professional engineering services including evaluation of existing bottom ash settling basins for adequate settling of bottom ash solids as well as structural capacity to meet the requirements of the Coal Combustion Residuals (CCR) Rule. The existing bottom ash settling basins were inadequately sized to limit solids carry-over. Subsequently, an abandoned two-cell coal pile settling basin was repurposed to capture bottom ash solids. Modifications to the bottom ash water system included structural upgrades to the repurposed basin, a jack-and-bore pipe beneath a rail line, overland and below grade HDPE piping, and multiple process modifications to the bottom ash water system. A bottom ash stackout pad, perimeter walls, and stormwater drain system were designed to containerize bottom ash and waste ash solids for temporary storage.

Revision Date:  6/26/2019

Tags:  221112 - Fossil Fuel 化石燃料, Oklahoma Gas & Electric, Burns & McDonnell, Coal Ash Ponds, Ruling, Upgrade, USA