Section 1200-03-16-.25 - PRIMARY LEAD SMELTERS(1) Applicability. The provisions of this rule shall apply to the following affected facilities in primary lead smelters: sintering machine, sintering machine discharge end, blast furnace, dross reverberatory furnace, electric smelting furnace, and converter commenced on or after February 9, 1977.
(2) Definitions. (a) "Primary lead smelter" means any installation or any intermediate process engaged in the production of lead from lead sulfide ore concentrates through the use of pyrometallurgical techniques.(b) "Sintering machine" means any furnace in which a lead sulfide ore concentrate charge is heated in the presence of air to eliminate sulfur contained in the charge and to agglomerate the charge into a hard porous mass called "sinter".(c) "Sinter bed" means the lead sulfide ore concentrate charge within a sintering machine.(d) "Sintering machine discharge end" means any apparatus which receives sinter as it is discharged from the conveying grate of a sintering machine.(e) "Blast furnace" means any reduction furnace to which sinter is charged and which forms separate layers of molten slag and lead bullion.(f) "Dross reverbatory furnace" means any furnace used for the removal or refining of impurities from lead bullion.(g) "Electric smelting furnace" means any furnace in which the heat necessary for smelting of the lead sulfide ore concentrate charge is generated by passing an electric current through a portion of the molten mass in the furnace.(h) "Converter" means any vessel to which lead concentrate or bullion is charged and refined.(i) "Sulfuric acid plant" means any facility producing sulfuric acid by the contact process.(3) Standard for Particulate Matter. On and after the date on which the performance test required to be conducted by paragraph .01(5) of this chapter is completed, no owner or operator subject to the provisions of this rule shall discharge or cause the discharge into the atmosphere from any blast furnace, dross reverberatory furnace, or sintering machine discharge end any gases which contain particulate matter in excess of 50 mg/dscm (0.022 gr/dscf).
(4) Standard for Sulfur Dioxide. On and after the date on which the performance test required to be conducted by paragraph .01(5) of this chapter is completed, no owner or operator subject to the provisions of this rule shall discharge of cause the discharge into the atmosphere from any sintering machine, electric smelting furnace, or converter gases which contain sulfur dioxide in excess of 0.065 percent by volume.
(5) Standard for Visible Emissions.(a) On and after the date on which the performance test required to be conducted by paragraph .01(5) of this chapter is completed, no owner or operator subject to the provisions of this rule shall discharge or cause the discharge into the atmosphere from any blast furnace, dross reverberatory furnace, or sintering machine discharge end any visible emissions which exhibit greater than 20 percent opacity.(b) On and after the date on which the performance test required to be conducted by paragraph .01(5) of this chapter is completed, no owner or operator subject to the provisions of this rule shall discharge or cause the discharge into the atmosphere from any affected facility that uses a sulfuric acid plant to comply with the standard set forth in paragraph (4), any visible emissions which exhibit greater than 20 percent opacity.(6) Monitoring of Operations. (a) The owner or operator of any primary lead smelter subject to the provisions of this rule shall install and operate: 1. A continuous monitoring system to monitor and record the opacity of gases discharged into the atmosphere from any blast furnace, dross reverberatory furnace, or sintering machine discharge end. The span of this system shall be set at 80 to 100 percent opacity.2. A continuous monitoring system to monitor and record sulfur dioxide emissions discharged into the atmosphere from any sintering machine, electric furnace or converter subject to paragraph (4). The span of this system shall be set at a sulfur dioxide concentration of 0.20 percent by volume.(i) The continuous monitoring system performance evaluation required under paragraph .01(8) of this chapter shall be completed prior to the initial performance test required under paragraph .01(5) of this chapter. During the performance evaluation, the span of the continuous monitoring system may be set at a sulfur dioxide concentration of 0.15 percent by volume if necessary to maintain the system output between 20 percent and 90 percent of full scale. Upon completion of the continuous monitoring system performance evaluation, the span of the continuous monitoring system shall be set at a sulfur dioxide concentration of 0.20 percent by volume.(ii) For the purpose of the continuous monitoring system performance evaluation required under paragraph .01(8) of this chapter, the reference method referred to under the Field Test for Accuracy (Relative) in Performance Specification 2 of Appendix B (Federal Register, Vol. 40, No. 194) shall be as specified by the Technical Secretary.(iii) For the performance evaluation, each concentration measurement shall be of one hour duration. The pollutant gases used to prepare the calibration gas mixtures required under paragraph 2.1, Performance Specification 2 of Appendix B (Federal Register, Vol. 40, No. 194) and for calibration checks under paragraph .01-(8) of this chapter shall be sulfur dioxide.(b) Two-hour average sulfur dioxide concentrations shall be calculated and recorded daily for the twelve consecutive two- hour periods of each operating day. Each two-hour average shall be determined as the arithmetic mean of the appropriate two continuous one-hour average sulfur dioxide concentrations provided by the continuous monitoring system installed under subparagraph (a) of this paragraph.(c) For the purpose of reports required under subparagraph .01(7)(c) of this chapter, periods of excess emissions that shall be reported are defined as follows:1. Opacity. Any six-minute period during which the average opacity, as measured by the continuous monitoring system installed under subparagraph (a) of this paragraph, exceeds the standard under subparagraph (5)(a).2. Sulfur dioxide. Any two-hour period, as described in subparagraph (b) of this paragraph, during which the average emissions of sulfur dioxide, as measured by the continuous monitoring system installed under subparagraph (a) of this paragraph, exceeds the standard under subparagraph (4)(a).(7) Test Methods and Procedures. (a) Sulfur dioxide concentrations shall be determined using the continuous monitoring system installed in accordance with subparagraph (6)(a) of this rule. One 2-hour average period shall constitute one run.(b) The sampling time for each run shall be at least 60 minutes and the minimum sampling volume shall be 0.85 dscm (30 dscf) except that smaller times or volumes, when necessitated by process variables or other factors, may be approved by the Technical Secretary.Tenn. Comp. R. & Regs. 1200-03-16-.25
Original rule filed January 10, 1977; effective February 9, 1977. Amendment filed September 4, 1981; effective October 18, 1981.Authority: T.C.A. §§ 68-25-105 and 4-5-202.