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U.S. Department of Energy
Office of Scientific and Technical Information

Impact of environmental legislation on the steel industry

Conference · · Iron and Steel Engineer; (United States)
OSTI ID:6910476
 [1]
  1. Fordham Univ., Bronx, NY (United States). Industrial Economics Research Inst.
In the steel plant, from the ingress of raw materials to the shipment of finished products, there is virtually no process that is not controlled by some type of environmental legislation. These regulations are more intense in some processes than others. The fundamental cokemaking operation is heavily regulated by the amendments to the Clean Air Act of 1990, which specifies a number of items including the leakage of coke-oven doors which had to be reduced to 8% in 1993 and 3% by 1998. Steelmaking furnaces, particularly electric furnaces, are regulated in regard to collecting and disposing of flue dust. Scrap preparation is controlled, particularly in regard to the disposal of nonmetallics. Cooling water from the various rolling and forming processes must be recirculated and purified. To meet the regulations in a number of instances, new technology and new processes have been developed, particularly in regard to coke ovens. Several processes for making iron have been developed and fundamental changes have taken place in the blast furnace. Coal injection will probably replace 30 to 35% of coke required to smelt iron ore, thus, fewer coke ovens and less pollution. The investment involved on an industry-wide basis in the effort to be in compliance with environmental laws amounts to billions of dollars.
OSTI ID:
6910476
Report Number(s):
CONF-9409223--
Conference Information:
Journal Name: Iron and Steel Engineer; (United States) Journal Volume: 71:9
Country of Publication:
United States
Language:
English