UFC 3 -430-11
14 February 2001
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ENVIRONMENTAL CONCERNS. The Environmental Protection Agency
(EPA) regulates the maximum allowed emissions from all external combustion sources
including boilers. EPA-AP-42, The Compilation of Air Pollutant Emission Factors
contains information associated with the types and quality of emissions and methods
used to control them. Allowable emission limits varies by local and state regulations.
Consult the Code of Federal Regulations, Title 40, Protection of Environment for
regulated limitations and monitoring requirements. The following are the criteria
pollutants associated with the burning of fuel for boilers.
Particulate matter
Sulfur Oxide
Nitrogen Oxide
Carbon Monoxide
Organic Compounds
Some common methods of minimizing or reducing these emissions include:
Flue Gas Recirculation
Low Nox Burners
Wet Scrubber
Cyclone Separators
Selective and Nonselective Catalytic Reduction (SCR and NSCR)
Electrostatic Precipitator (ESP)
Baghouse
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SAFETY PLAN AND HAZOP STUDY. Boiler controls must be included in
the Safety Plan and Hazardous Operations (HAZOP) Study submitted by the boiler
designer.
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