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• Adding coagulant aids or flocculants such as cationic polymers to increase the removal
of the fine iron oxide particles;
• Using pumps for removing the iron oxide in the scale pits, sedimentation tanks, and
collection tank to eliminate draining of the wastewater onto the ground; and
• -Increasing the frequency of iron oxide removal in the scale pits within the rolling mill.
2. Flying Shear Cooling Water Elimination - Eliminate the once-through cooling of the pipe prior
to the flying shears or capture and return it to the rolling mill wastewater treatment system.
3. Hydraulic Fluid Leak Reduction - Reduce the quantity of hydraulic oil in the cooling water with
improved maintenance (both preventive and corrective programs) of the equipment to prevent
or correct hydraulic fluid leaks.
4. Reheating Furnace Cooling Water EV