Republic Steel Recycling Over 85% of Wastewater from Steel Mill

Serial Information: Civil Engineering—ASCE, 1980, Vol. 50, Issue 6, Pg. 102-103

Document Type: Feature article


At its hot-rolling mill in Canton, Ohio, Republic Steel is recycling over 85% of the wastewater it produces. The wastewater contains suspended particles of scale and oils and greases. The scale is removed by adding a chemical that clumps together small particles of scale to form larger particles that will settle out of the wastewater by gravity. The oil is skimmed off the top of a clarifier. Recycling is becoming more common in the steel industry. Yet that industry still has the worst record of complying with federal water pollution control laws of any sector of American industry. The industry is plagued by low profit and inadequate capital investment in plant, including investment in pollution-control equipment.

Subject Headings: Steel | Particles | Industries | Water pollution | Recycling | Wastewater management | Investments | Chemical wastes | Ohio | United States

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