Air Pollution Control

  1. Control of Specific Pollutants
    1. Sulfur Dioxide Control
      1. Pre-Combustion Methods
        1. Fuel Desulfurization
          1. Coal Cleaning
            1. Fuel Switching
            2. Combustion Modifications
              1. Fluidized Bed Combustion
                1. Limestone Injection
                  1. Sorbent Addition
                  2. Post-Combustion Control
                    1. Wet Flue Gas Desulfurization
                      1. Limestone Scrubbing
                        1. Lime Scrubbing
                          1. Dual Alkali Process
                          2. Spray Dry Scrubbing
                            1. Dry Sorbent Injection
                              1. Electron Beam Process
                            2. Nitrogen Oxides Control
                              1. Combustion Modifications
                                1. Low-NOx Burners
                                  1. Staged Combustion
                                    1. Flue Gas Recirculation
                                      1. Water/Steam Injection
                                      2. Post-Combustion Control
                                        1. Selective Catalytic Reduction
                                          1. Catalyst Types
                                            1. Ammonia Injection
                                              1. Operating Conditions
                                              2. Selective Non-Catalytic Reduction
                                                1. Urea Injection
                                                  1. Temperature Windows
                                                    1. Mixing Requirements
                                                    2. NOx Adsorption
                                                      1. Electron Beam Process
                                                    3. Volatile Organic Compound Control
                                                      1. Source Control Methods
                                                        1. Process Modifications
                                                          1. Equipment Leak Detection
                                                            1. Vapor Recovery Systems
                                                            2. Add-On Control Technologies
                                                              1. Thermal Oxidation
                                                                1. Catalytic Oxidation
                                                                  1. Carbon Adsorption
                                                                    1. Absorption
                                                                      1. Condensation
                                                                        1. Membrane Separation
                                                                        2. Specific VOC Applications
                                                                          1. Gasoline Vapor Recovery
                                                                            1. Solvent Recovery
                                                                              1. Paint Booth Emissions
                                                                                1. Chemical Process Emissions
                                                                              2. Carbon Monoxide Control
                                                                                1. Combustion Optimization
                                                                                  1. Air-Fuel Ratio Control
                                                                                    1. Mixing Improvement
                                                                                      1. Temperature Control
                                                                                      2. Catalytic Oxidation
                                                                                        1. Catalyst Selection
                                                                                          1. Operating Conditions
                                                                                            1. Catalyst Maintenance
                                                                                            2. Thermal Oxidation
                                                                                              1. Temperature Requirements
                                                                                                1. Residence Time
                                                                                                  1. Heat Recovery
                                                                                                2. Mercury Control
                                                                                                  1. Coal-Fired Power Plants
                                                                                                    1. Activated Carbon Injection
                                                                                                      1. Brominated Activated Carbon
                                                                                                        1. Calcium-Based Sorbents
                                                                                                        2. Industrial Sources
                                                                                                          1. Wet Scrubbing
                                                                                                            1. Dry Sorbent Injection
                                                                                                              1. Selenium Filters
                                                                                                              2. Waste Incineration
                                                                                                                1. Activated Carbon Systems
                                                                                                                  1. Wet Scrubbing
                                                                                                                    1. Fabric Filtration

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                                                                                                                8. Gaseous Pollutant Control Technologies

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                                                                                                                10. Mobile Source Emission Control