“Lime kiln” means a unit used to calcine lime mud, which is the process of heating calcium carbonate in the lime mud to a high temperature, without fusing, in order to drive off the carbon dioxide and to produce calcium oxide.

Source. #6724-A, eff 3-28-98; renumbered by #8256 (from Env-A 101.162), see Revision Note at #1 chapter heading; renumbered by #8304 (see Revision Note #2 at chapter heading); renumbered by #9839 (from Env-A 101.110), see Revision Note #3 at chapter heading); ss by #13105, eff 9-25-20 (formerly Env-A 101.112) (see Revision Note #4 at chapter heading for Env-A 100)