South Carolina Code of Regulations › Chapter 61 - DEPARTMENT OF HEALTH AND ENVIRONMENTAL CONTROL › Subchapter 61-79 - Hazardous Waste Management Regulations › Part 61-79.266 - STANDARDS FOR THE MANAGEMENT OF SPECIFIC HAZARDOUS WASTES AND SPECIFIC TYPES OF HAZARDOUS WASTE MANAGEMENT FACILITIES › Subpart H - HAZARDOUS WASTE BURNED IN BOILERS AND INDUSTRIAL FURNACES › Section 61-79.266.H.110 - Waiver of DRE trial burn for boilers

Current through Register Vol. 48, No. 6, June 28, 2024
Boilers that operate under the special requirements of this
					 section, and that do not burn hazardous waste containing (or derived from) EPA
					 Hazardous Waste Nos. F020, F021, F022, F023, F026, or F027, are considered to
					 be in conformance with the DRE standard of 266.104(a), and a trial burn to
					 demonstrate DRE is waived. When burning hazardous waste:
(a) A minimum of 50 percent of fuel fired to
				  the device shall be fossil fuel, fuels derived from fossil fuel, tall oil, or,
				  if approved by the Department on a case-by-case basis, other nonhazardous fuel
				  with combustion characteristics comparable to fossil fuel. Such fuels are
				  termed "primary fuel" for purposes of this section. (Tall oil is a fuel derived
				  from vegetable and rosin fatty acids.) The 50 percent primary fuel firing rate
				  shall be determined on a total heat or mass input basis, whichever results in
				  the greater mass feed rate of primary fuel fired;
(b) Boiler load shall not be less than 40
				  percent. Boiler load is the ratio at any time of the total heat input to the
				  maximum design heat input;
(c)
				  Primary fuels and hazardous waste fuels shall have a minimum as-fired heating
				  value of 8,000 Btu/lb, and each material fired in a burner where hazardous
				  waste is fired must have a heating value of at least 8,000 Btu/lb,
				  as-fired;
(d) The device shall
				  operate in conformance with the carbon monoxide standard provided by
				  266.104(b)(1). Boilers subject to the waiver of the DRE trial burn provided by
				  this section are not eligible for the alternative carbon monoxide standard
				  provided by 266.104(c);
(e) The
				  boiler must be a watertube type boiler that does not feed fuel using a stoker
				  or stoker type mechanism; and
(f)
				  The hazardous waste shall be fired directly into the primary fuel flame zone of
				  the combustion chamber with an air or steam atomization firing system,
				  mechanical atomization system, or a rotary cup atomization system under the
				  following conditions:
(1) Viscosity. The
				  viscosity of the hazardous waste fuel as-fired shall not exceed 300
				  SSU;
(2) Particle size. When a high
				  pressure air or steam atomizer, low pressure atomizer, or mechanical atomizer
				  is used, 70% of the hazardous waste fuel must pass through a 200 mesh (74
				  micron) screen, and when a rotary cup atomizer is used, 70% of the hazardous
				  waste must pass through a 100 mesh (150 micron) screen;
(3) Mechanical atomization systems. Fuel
				  pressure within a mechanical atomization system and fuel flow rate shall be
				  maintained within the design range taking into account the viscosity and
				  volatility of the fuel;
(4) Rotary
				  cup atomization systems. Fuel flow rate through a rotary cup atomization system
				  must be maintained within the design range taking into account the viscosity
				  and volatility of the fuel.