North Dakota Administrative Code › Title 33.1 - Department of Environmental Quality › Article 33.1-24 - Hazardous Waste Management › Chapter 33.1-24-05 - Standards for Treatment, Storage, and Disposal Facilities and for the Management of Specific Hazardous Wastes and Specific Types of Hazardous Waste Management Facilities › BOILERS AND INDUSTRIAL FURNACES › Section 33.1-24-05-535 - Waiver of destruction and removal efficiency trial burn for boilers

Current through Supplement No. 393, July, 2024
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
					 33.1-24-05-529, 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
				  33.1-24-05-529. 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
				  33.1-24-05-529;
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.