ArcelorMittal placed trust in Danieli innovative solutions, selecting new water treatment technologies to be implemented at the Barra Mansa site in Brazil. It will complete the brownfield installation of new 400,000 tonnes per year medium section mill being supplied by Danieli. The new water treatment plant, consisting of patented DanFilters and exclusive Zero Scale Pit -ZSP, will replace the one serving the dismissed rolling mill. The startup of the new rolling mill and water treatment plant is scheduled by Q3 of 2024.The major amount of scale in the cooling water comes from the firsts and more critical rolling stands. ZSP is located under the rolling mill to collect water containing rolling mill scale mainly generated during the first rolling steps. It continuously removes the scale from the underground flume, raises it to the mill floor where it is collected in standard skips.The project also includes DanFilters, the fast-filtering patented filters of Danieli. In fact, three new, 3.800-mm-dia DanFilters will replace four 5,000 mm diameter old filters.In addition to CapEx savings and no extra OpEx costs, ZSP simplifies maintenance operations.