Evoqua’s Ultrafiltration Solution to Unpredictable Feedwater
Evoqua’s Ultrafiltration Solution to Unpredictable Feedwater
2 PagesEVOQUA’S ULTRAFILTRATION SOLUTION TO UNPREDICTABLE FEEDWATER A steel mill located in the Ohio River Valley of the United States had been treating raw river water via a clarifier, gravity filters, multi-media filters, cartridge filtration, and reverse osmosis (RO) to produce demineralized water. The demineralized water was utilized as process water for the mill rolling lines. In 2014, the mill began experiencing numerous problems with high solids carryover from their aging clarifier to downstream equipment. The clarifier was designed to provide water with turbidity of < 1 NTU to the downstream equipment; however, due to deferred maintenance and deterioration, was allowing water with turbidity as high as 50 NTU to be forwarded. Steel Mill Production Line Turbidity is a measure of clou
