Case Study CH-938 Background Gallatin Steel is a mini-mill that produces steel coils through the Compact Strip Process (CSP). The Direct Contact Water (DCW) system provides cooling water for both the caster and rolling mill in a single combined system. Return water, after contact with the pro- cess, drains through flumes to the 1.1 million gallon DCW scale pit, where separation of oil, water and iron fines occurs. Oil is removed from

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