340-234-0210 Kraft Pulp Mills: Emission Limitations (1) Emission of Total Reduced Sulfur (TRS): (a) Recovery Furnaces: (A) The emissions of TRS from each recovery furnace placed in operation before January 1, 1969, may not exceed: (i) 10 ppm as daily arithmetic average; and (ii) 0.15 Kg/metric ton (0.30 pound/ton) of production as a daily arithmetic average; (B) TRS emissions from each recovery furnace placed in operation after January 1, 1969, and before September 25, 1976, or any recovery furnace modified significantly after January 1, 1969, and before September 25, 1976, to expand production must be controlled such that the emissions of TRS may not exceed: (i) 5 ppm as a daily arithmetic average; and (ii) 0.075 Kg/metric ton (0.150 pound/ton) of production as a daily arithmetic average. (b) Lime Kilns. This subsection applies to those sources where construction was initiated prior to September 25, 1976. Lime kilns must be operated and controlled such that emissions of TRS may not exceed: (A) 20 ppm as a daily arithmetic average; and (B) 0.05 Kg/metric ton (0.10 pound/ton) of production as a daily arithmetic average. (c) Smelt Dissolving Tanks. TRS emissions from each smelt dissolving tank may not exceed 0.0165 gram/Kg BLS (0.033 pound/ton BLS) as a daily arithmetic average. (d) Non-Condensables. Non-condensables from digesters, multiple-effect evaporators and contaminated condensate stripping must be continuously treated to destroy TRS gases by thermal incineration in a lime kiln or incineration device capable of subjecting the non-condensables to a temperature of not less than 650° C. (1,200° F.) for not less than 0.3 second. An alternate device meeting the above requirements must be available in the event adequate incineration in the primary device cannot be accomplished. Venting of TRS gases during changeover must be minimized but in no case may the time exceed one-hour. (e) Other Sources: (A) The total emission of TRS from other sources may not exceed 0.078 Kg/metric ton (0.156 pound/ton) of production as a daily arithmetic average; (B) Miscellaneous Sources and Practices. If DEQ determines that sewers, drains, and anaerobic lagoons significantly contribute to an odor problem, a program for control will be required. (2) Particulate Matter: (a) Recovery Furnaces. The emissions of particulate matter from each recovery furnace stack may not exceed: (A) 2.0 kilograms per metric ton (4.0 pounds per ton) of production as a daily arithmetic average; (B) 0.30 gram per dry standard cubic meter (0.13 grain per dry standard cubic foot) as a daily arithmetic average; and (C) Thirty-five percent opacity for a period or periods aggregating more than 30 minutes in any 180 consecutive minutes or more than 60 minutes in any 24 consecutive hours (excluding periods when the facility is not operating). (b) Lime Kilns. The emissions of particulate matter from each lime kiln stack may not exceed: (A) 0.50 kilogram per metric ton (1.00 pound per ton) of production as a daily arithmetic average; (B) 0.46 gram per dry standard cubic meter (0.20 grain per dry standard cubic foot) as a daily arithmetic average; and (C) The visible emission limitations in section (4); (c) Smelt Dissolving Tanks. The emission of particulate matter from each smelt dissolving tank vent may not exceed: (A) A daily arithmetic average of 0.25 kilogram per metric ton (0.50 pound per ton) of production; and (B) The visible emission limitations in section (4). (d) Replacement of or modification or a rebuild of an existing particulate pollution control device for which a capital expenditure of 50 percent or more of the replacement cost of the existing device is required, other than ongoing routine maintenance, after July 1, 1988 will result in more restrictive standards as follows: (A) Recovery Furnaces: (i) The emission of particulate matter from each affected recovery furnace stack may not exceed 1.00 kilogram per metric ton (2.00 pounds per ton) of production as a daily arithmetic average; and (ii) 0.10 gram per dry standard cubic meter (0.044 grain per dry standard cubic foot) as a daily arithmetic average. (B) Lime Kilns: (i) The emission of particulate matter from each affected lime kiln stack may not exceed 0.25 kilogram per metric ton (0.50 pound per ton) of production as a daily arithmetic average; and (ii) 0.15 gram per dry standard cubic meter (0.067 grain per dry standard cubic foot) as a daily arithmetic average when burning gaseous fossil fuel; or (iii) 0.50 kilogram per metric ton (1.00 pound per ton) of production as a daily arithmetic average; and (iv) 0.30 gram per dry standard cubic meter 0.13 grain per dry standard cubic foot) as a daily arithmetic average when burning liquid fossil fuel. (C) Smelt Dissolving Tanks. The emissions of particulate matter from each smelt dissolving tank vent may not exceed 0.15 kilogram per metric ton (0.30 pound per ton) of production as a daily arithmetic average. (3) Sulfur Dioxide (SO2). Emissions of sulfur dioxide from each recovery furnace stack may not exceed a three-hour arithmetic average of 300 ppm on a dry-gas basis except when burning fuel oil. The sulfur content of fuel oil used must not exceed the sulfur content of residual and distillate oil established in OAR 340-228-0100 and 340-228-0110, respectively. (4) Emissions from each kraft mill source, with the exception of the mill’s emissions attributable to a recovery furnace, may not equal or exceed 20 percent opacity as a six minute average. (5) Emissions from each kraft mill source with specific particulate emission limits included in this rule are exempt the grain loading emission limits in OAR chapter 340, division 226 and division 228 and the opacity limits in OAR chapter 340, division 208. (6) New Source Performance Standards. New or modified sources that commenced construction after September 24, 1976, are subject to each provision of this rule and the New Source Performance Standards, 40 CFR part 60 subpart BB as adopted under OAR 340-238-0060, whichever is more stringent. [NOTE: This rule is included in the State of Oregon Clean Air Act Implementation Plan that EQC adopted under OAR 340-200-0040 with the exception of references to Total Reduced Sulfur.] Statutory/Other Authority: ORS 468.020 & 468A.025 Statutes/Other Implemented: ORS 468A.025 History: DEQ 19-2022, amend filed 11/18/2022, effective 03/01/2023 DEQ 7-2015, f. & cert. ef. 4-16-15 DEQ 8-2007, f. & cert. ef. 11-8-07 DEQ 14-1999, f. & cert. ef. 10-14-99, Renumbered from 340-025-0165 DEQ 4-1993, f. & cert. ef. 3-10-93 DEQ 2-1990, f. & cert. ef. 1-24-90 DEQ 137, f. & ef. 6-10-77 DEQ 50, f. 2-9-73, ef. 3-1-73