Section 33-24-05-535 - Waiver of destruction and removal efficiency trial burn for boilers Boilers that operate under the special requirements of this section, and that do not burn hazardous waste containing (or derived from) hazardous waste number F020, F021, F022, F023, F026, or F027, are considered to be in conformance with the destruction and removal efficiency standard of subsection 1 of section 33-24-05-529, and a trial burn to demonstrate destruction and removal efficiency is waived. When burning hazardous waste:
1. A minimum of fifty 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 fifty 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; 2. Boiler load shall not be less than forty percent. Boiler load is the ratio at any time of the total heat input to the maximum design heat input; 3. Primary fuels and hazardous waste fuels shall have a minimum as-fired heating value of eight thousand British thermal units per pound, and each material fired in a burner where hazardous waste is fired must have a heating value of at least eight thousand British thermal units per pound, as-fired; 4. The device shall operate in conformance with the carbon monoxide standard provided by subdivision a of subsection 2 of section 33-24-05-529. Boilers subject to the waiver of the destruction and removal efficiency trial burn provided by this section are not eligible for the alternative carbon monoxide standard provided by subsection 3 of section 33-24-05-529; 5. The boiler must be a watertube type boiler that does not feed fuel using a stoker or stoker type machanism; and 6. 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: a. Viscosity. The viscosity of the hazardous waste fuel as-fired shall not exceed three hundred SSU; b. Particle size. When a high pressure air or steam atomizer, low pressure atomizer, or mechanical atomizer is used, seventy percent of the hazardous waste fuel must pass through a 200 mesh (74 micron) screen, and when a rotary cup atomizer is used, seventy percent of the hazardous waste must pass through a 100 mesh (150 micron) screen; c. 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; d. 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. N.D. Admin Code 33-24-05-535
General Authority: NDCC 23-20.3-03
Law Implemented: NDCC 23-20.3-03, 23-20.3-04