Code of Maine Rules › 01 - DEPARTMENT OF AGRICULTURE, CONSERVATION AND FORESTRY › 001 - AGRICULTURE - GENERAL › Chapter 211 - RULES FOR THE DISPOSAL OF ANIMAL CARCASSES › Appendix 001-211-B

Current through 2024-29, July 17, 2024
BEST PRACTICAL TREATMENT
FOR ANIMAL CARCASS INCINERATORS
The following language was taken from a model DEP license for
				  a veterinary incinerator used to dispose of animal carcasses:
1.
Best Practical Treatment
("
BPT") for existing equipment
means that method which controls or
				reduces emissions to the lowest possible level considering:
- the existing state of technology;
- the effectiveness of available alternatives for reducing
				  emissions from the source being considered; and
- the economic feasibility for the type of establishment
				  involved.
This source was previously subject to Best Available Control
				  Technology (BACT) requirements.
The former BACT determination is now
				  considered Best Practical Treatment for this source.
BPT for the Class
				  IV-A veterinary incinerator includes the following:
Operating temperature in the secondary chamber or refractory
				  lined stack shall be maintained at or above 1600°F with a stack gas
				  retention time, at or above 1600°F, of at least 0.5 second.
To ensure an efficient burn and to prevent odors and visible
				  emissions, the secondary chamber shall be preheated, as specified by the
				  manufacturer, until the pyrometer temperature measures a minimum of 1200°F
				  prior to commencing the burn cycle
(check with the manufacturer to see
				  that this will still ensure compliance, there is usually test data available or
				  a VE can be done at the source; if not then leave at 1600).
Once the burn cycle has commenced by introduction of primary
				  chamber combustion, the incinerator shall be operated in an efficient manner
				  and as specified by the manufacturer for the period of time between preheat and
				  reaching the set operational temperature to be a minimum of 1600°F in the
				  secondary chamber.
The temperature in the secondary chamber or refractory lined
				  stack shall be maintained at or above 1600°F for the duration of the burn
				  cycle.
A pyrometer and 1/4 inch test port shall be installed and
				  maintained at the location of the incinerator or refractory lined stack, which
				  provides sufficient volume to insure a flue gas retention time of not less than
				  0.5 seconds at the minimum of 1600°F.
A log will be maintained recording the weight of the waste
				  charged, preheat time, charging time and the temperature of the secondary
				  chamber every 60 minutes after start-up until, and including, final shutdown
				  time. For facilities operating a chart recorder, the start time, date, and
				  weight charged may be logged on the chart.
A maximum particulate emission rate of 0.20 gr/dscf corrected
				  to 12% CO2 will be met. Emissions information is based
				  on a licensed allowed particulate matter emission limit of 0.20 gr/dscf
				  corrected to 12% CO2, the burning of propanefuel as an
				  auxiliary fuel, and the use of AP-42 factors: Tables 2.3-1 and 2.3-2 for
				  biomedical waste incineration (dated 7/93) and Table 1.5-1 for liquid propane
				  fuel (dated 07/08):
PM - 0.20 gr/dscf corrected to 12%
				  CO2, based on BACT, and
				  0.20lb/103 gallons fuel factor.
SO2 - 0.16 lb/hr based on the AP-42
				  factors of 2.17 lb/ton and 0.00 lb/103 gallons fuel
				  factor.
NOX - 0.47 lb/hr based on the AP-42
				  factors of 3.56 lb/ton and0.207 lb/103 gallons fuel
				  factor.
CO - 0.34lb/hr based on the AP-42 factor of 2.95 lb/ton and
				  7.50 lb/103 gallons fuel factor.
VOC - 0.04 lb/hr based on the AP-42 factor of 0.299 lb/ton
				  and 1.0 lb/103 gallons fuel factor.
Visible emissions from the incinerator shall not exceed 10%
				  opacity based on a six (6) minute block average basis.
The ash must be disposed of in accordance with the
				  requirements of the Bureau of Remediation and Waste Management.
The incinerator operator(s) shall receive adequate training
				  to operate the incinerator in accordance with the manufacturer's specifications
				  and shall be familiar with the terms of the Air Emission License.
2.
BPT for new sources and
				modifications
requires a demonstration that emissions are receiving Best
				Available Technology (BACT) as defined in 06-096 CMR 100. BACT is a top down
				approach to selecting air emission controls considering economic, environmental
				and energy impacts. BACT for the Class IV-A (veterinary) incinerator includes
				the following:
Operating temperature in the secondary chamber or refractory
				  lined stack shall be maintained at or above 1600°F with a stack gas
				  retention time, at or above 1600°F, of at least 1.0 second.
To ensure an efficient burn, and to prevent odors and visible
				  emissions, the secondary chamber shall be preheated, as specified by the
				  manufacturer, until the pyrometer measures a minimum of 1200°F prior to
				  commencing the burn cycle
(check with the manufacturer to see that this
				  will still ensure compliance, there is usually test data available or a VE can
				  be done at the source; if not then leave at 1600).
Once the burn cycle has commenced by introduction of primary
				  chamber combustion, the incinerator shall be operated in an efficient manner,
				  and as specified by the manufacturer, for the period of time between preheat
				  and reaching the set operational temperature to be a minimum of 1600°F in
				  the secondary chamber.
The temperature in the secondary chamber or refractory lined
				  stack shall be maintained at or above 1600°F for the duration of the burn
				  cycle.
A pyrometer and 1/4 inch test port shall be installed and
				  maintained at the location of the incinerator or refractory lined stack, which
				  provides sufficient volume to insure a flue gas retention time of not less than
				  1.0 second at a minimum of 1600°F.
A log will be maintained recording the weight of the waste
				  charged, preheat time, charging time and the temperature of the secondary
				  chamber every 60 minutes after start-up until, and including, final shutdown
				  time. For facilities operating a chart recorder, the start time, date, and
				  weight of waste charged may be logged on the chart.
A maximum particulate emission rate of 0.20 gr/dscf corrected
				  to 12% CO2 will be met. Emissions information is based
				  on a licensed allowed particulate matter emission limit of 0.20 gr/dscf
				  corrected to 12% CO2, the burning of propanefuel as an
				  auxiliary fuel, and the use of AP-42 factors: Tables 2.3-1 and 2.3-2 for
				  biomedical waste incineration (dated 7/93) and Table 1.5-1 for liquid propane
				  fuel (dated 07/08):
PM - 0.20 gr/dscf corrected to 12%
				  CO2, based on BACT, and
				  0.20lb/103 gallons fuel factor.
SO2 - 0.16 lb/hr based on the AP-42
				  factors of 2.17 lb/ton and 0.00 lb/103 gallons fuel
				  factor.
NOX - 0.47 lb/hr based on the AP-42
				  factors of 3.56 lb/ton and0.207 lb/103 gallons fuel
				  factor.
CO - 0.34lb/hr based on the AP-42 factor of 2.95 lb/ton and
				  7.50 lb/103 gallons fuel factor.
VOC - 0.04 lb/hr based on the AP-42 factor of 0.299 lb/ton
				  and 1.0 lb/103 gallons fuel factor.
Visible emissions from the incinerator shall not exceed 10%
				  opacity based on a six (6) minute block average basis.
The ash will be disposed of in accordance with the
				  requirements of the Bureau of Remediation and Waste Management.
The incinerator operator(s) shall receive adequate training
				  to operate the incinerator in accordance with the manufacturer's specifications
				  and shall be familiar with the terms of the Air Emission License.