"Long wet kiln" means a kiln 14 feet or larger in outside diameter, 400 feet or greater in length, which employs no preheating of the feed in the cyclone chambers, and the inlet feed to the kiln is a slurry.
Ill. Admin. Code tit. 35, § 211.3485
Added at 25 Ill. Reg. 4582, effective March 15, 2001