Section 417.06. Total reduced sulfur limitations.

  No person may cause, allow or permit emission into the ambient air of total reduced sulfur (TRS) in excess of the limitations in this section. All emission standards in this section are based on average daily emissions.

(1)  The emission of TRS from all recovery furnace stacks may not exceed 0.50 pound of reduced sulfur compounds (as sulfur) per equivalent ton of air-dried kraft pulp, or from each recovery furnace stack 17.5 ppm, expressed as hydrogen sulfide on a dry gas basis, whichever is the more restrictive. New direct sources shall meet such other limit of TRS that proves to be reasonably attainable utilizing the latest in design of recovery furnace equipment, controls, and procedures.

(2)  Noncondensibles from digesters and multiple-effect evaporators shall be treated to reduce the emission of TRS equal to the reduction achieved by thermal oxidation in a lime kiln.

History: Renum. from NR 154.18 (2), Register, September, 1986, No. 369 , eff. 10-1-86; am. (intro.) and (1), Register, May, 1992, No. 437 , eff. 6-1-92; am. (1) and (2), r. (3), Register, December, 1995, No. 480 , eff. 1-1-96.