Equipment air pollution control

L. Theodore and A. J. Bwomzox., Air Pollution Control Equipment—Selection, Design, Operation and Maintenance, Prentice-Hall, Englewood CHffs, N.J., 1982. 

Sources Subject to Prevention of Significant Deterioration (PSD) Sources subject to PSD regulations (40 CFR, Sec. 52.21, Aug. 7, 1980) are major stationary sources and major modifications located in attainment areas and unclassified areas. A major stationaiy source was defined as any source hsted in Table 25-4 with the potential to emit 100 tons per year or more of any pollutant regulated under the Clean Air Act (CAA) or any other source with the potential to emit 250 tons per year or more of any CAA pollutant. The potential to emit is defined as the maximum capacity to emit the pollutant under apphcable emission standards and permit conditions (after apphcation of any air pollution control equipment) excluding secondaiy emissions. A major modification is defined as any physical or operational change of a major stationaiy source producing a significant net emissions increase of any CAA pollutant (see Table 25-5). 

Pohution prevention techniques must be evaluated through a thorough consideration of ah media, hence the term multimedia. This approach is a clear departure from previous pollution treatment or control techniques where it was acceptable to transfer a pollutant from one source to another in order to solve a waste problem. Such strategies merely provide short-term solutions to an ever increasing problem. As an example, air pollution control equipment prevents or reduces the discharge of waste into the air but at the same time can produce a solid (hazardous) waste problem. 

Aluminum Melting charging, melting, pouring Smoke and particulates Charging clean material (no paint or grease) proper operation required no air-pollution-control equipment if no fluxes are used and degassing is... 

The process of evaluating air emission permit apphcations for large sources which are subject to federal permitting requirements is called New Source Review (NSR) and can be quite complicated, taking from six mouths to four years to complete. An NSR application would be required for a new source which could emit 100 tons per year or more of any criteria pollutant, after accounting for any air pollution control equipment. 

In many situations, the most desirable control of vapor-type discharges can be accomplished by condensation. Condensers may also be used ahead of other air pollution control equipment to remove condensable components. The reasons for using condensers include (1) recovery of economically valuable products, (2) removal of components that might be corrosive or damaging to other portions of the system, and (3) reduction of the volume of the effluent gases. 

Theodore, L., and Buonicore, A. J, "Air Pollution Control Equipment Selection, Design, Operation and Maintenance." Prentice-Hall, Englewood Cliffs, NJ, 1982,... 

A Competitive Assessment of U.S. Industrial Air Pollution Control Equipment Industry. " U.S. Department of Commerce, Washington, DC, 1991. 

Typical air pollution control equipment employed by the industry include the following stack gas scrubbing and/or carbon adsorption (for toxic organics) and... 

Report the total of aii releases to the air that occur through stacks, vents, ducts, pipes, or otherconfinedairstreams. You must include storage tank emissions. Air releases from air pollution control equipment would generally fail in this category. 

L.Theodore and R. Allen, Air Pollution Control Equipment , A Theodore Tutorial, East Wilkston. NY, 1997. 

Air pollution control equipment used on liquid formulation units typically involves exhaust systems at all potential sources of emission. Storage and holding tanks, mix tanks, and... 

Plant 000012 produces 3.9 x 10" kkg/year (8.7 x lO lb/year) of emulsion crumb rubber, primarily neoprene. The contact wastewater flow rate is approximately 8.45 m /day (2.25 X 10 gpd) and includes all air pollution control equipment, sanitary waste, maintenance and equipment cleanup, and direct contact wastewater. The treatment process consists of activated sludge, secondary clarification, sludge thickening, and aerobic sludge digestion. Noncontact wastewater, with a flow rate of approximately 1.31 x 10 m /day (3.46 x 10 gpd), is used on a once-through basis and is remrned directly to the river source. Contact wastewater is also returned to the surface stream after treatment. 

Because of Clean Air Act (CAA) requirements, most foundries have been required to install air pollution control equipment over their melting operations to come into compliance with these regulations. Foundries typically use either a dry baghouse or some form of wet scrubber system (e.g., wet cap, venturi, etc.) to collect the particulates from the melting operation. 

But despite the need and tile invention. Cottrell had considerable difficulty over a number of years in gaining acceptance of the electrical precipitator by industry. Today, and for a number of decades past, the electrostatic precipitator has been a major device for combatting air pollution. Since the precipitator functions only against particulates, numerous other items of air pollution control equipment, such as absorbers, scrubbers, and biters, are required and are described elsewhere in this volume. 

Schifftner, K.C. Air Pollution Control Equipment Selection Guide. CRC Press, LLC,... 

To meet emissions limits, the Modesto Project had to install state-of-the-art emission control devices. Detailed descriptions of all air pollution control equipment is contained in Section 3.3. 

Problems with the air pollution control equipment also had to be addressed. These are discussed in Section 3.3. 

Four plants are reported to have considered burning TDF supplementally in boilers with a primary fuel of biomass or refuse-derived fuel. These plants are listed in Table 7-1. Two RDF fired power plants are attempting to obtain permits to bum tires.10 One biomass burner in Maine is reportedly in the permit process, and has been designed with the capability of burning tires.12 Personnel at the State Air Pollution Agency in South Carolina indicated that several municipalities had tried, unsuccessfully, in the past to bum TDF in their RDF incinerators.11 No information was obtained on boiler configuration or air pollution control equipment. 

Plant personnel conduct weekly leak checks for gases from pipes, valves, and flanges. Few air emissions result from operation of this equipment. Air pollution control equipment is not even necessary to meet state standards.1... 

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