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Show BEFORE AND AFTER I ; r .: " t " : ... ' . tr. V i i ...y.-c;-- ' - fe I 1 I iJUft.- 1 1 I .Vrw. ... , '-. s ""T" i a 8 J. r- Now, thanks to modern electronics, skies are clear in beautiful Utah Valley. Top picture shows how smoke formerly poured from the ten open hearth stacks at Geneva Works near Provo, Utah. When U. S. Steel learned that fluorine emissions from the mill might be causing damage to some dairy cattle in the area surrounding the Columbia-Geneva Steel Division plant, an intensive program was launched to correct the problem caused by the high fluorine content of Utah Iron ore. Solving the unique condition, first of its kind faced by the American steel industry, required more than 100,000 engineering en-gineering man hours. Bottom picture shows the result of research and development costing almost $9,000,000. Electrostatic precipitators, installed in the open hearth department, remove smoke and fluorides emanating from the giant steelmaking furnaces. Similar equipment has been installer' In the mill's sintering plant. |