[Code of Federal Regulations]
[Title 40, Volume 26]
[Revised as of July 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR424.20]

[Page 665]
 
                TITLE 40-PROTECTION OF ENVIRONMENT
 
      CHAPTER I-ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 424-FERROALLOY MANUFACTURING POINT SOURCE CATEGORY--Table of Contents
 
Subpart B-Covered Electric Furnaces and Other Smelting Operations 
           With Wet Air Pollution Control Devices Subcategory
 
Sec. 424.20  Applicability; description of the covered electric furnaces and other smelting operations with wet air pollution control devices subcategory.


    The provisions of this subpart are applicable to discharges 
resulting from the smelting of ferroalloys in covered electric furnaces 
or other smelting operations, not elsewhere included in this part, with 
wet air pollution control devices. This subcategory includes those 
electric furnaces of such construction or configuration (known as 
covered, closed, sealed, semi-covered or semi-closed furnaces) that the 
furnace off-gases are not burned prior to collection and cleaning, and 
which off-gases are cleaned after collection in a wet air pollution 
control device such as a scrubber, 'wet' baghouse, etc. This subcategory 
also includes those non- electric furnace smelting operations, such as 
exothermic (i.e., aluminothermic or silicothermic) smelting, 
ferromanganese refining, etc., where these are controlled for air 
pollution by wet air pollution control devices. This subcategory does 
not include noncontact cooling water or those furnaces which utilize dry 
dust collection techniques, such as dry baghouses.