clean air system Articles
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Will the Circle Be Unbroken: A History of the U.S. National Ambient Air Quality Standards
ABSTRACT In celebration of the 100th anniversary of the Air & Waste Management Association, this review examines the history of air quality management (AQM) in the United States over the last century, with an emphasis on the ambient standards programs established by the landmark 1970 Clean Air Act (CAA) Amendments. The current CAA system is a hybrid of several distinct air pollution control ...
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Modest Growth for Air Pollution Control Market
The Clean Air Act amendments of 1990 created a wave of optimism in the air pollution control (APC) business. The subsequent decade, however, resulted in backwash of disappointment for APC companies as the market for stationary source equipment declined from 1-4% per year from 1993-1998. Growth returned to the APC market, however, with 1999 and 2000 characterized as 'good' years by the Institute ...
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Wet NOx scrubber - Case study
This project was for a major manufacturer of a tableted OTC analgesic. The manufacturing process was being redesigned, and a critical aspect of the work was the re-engineering of a reactor. The client’s original process, which used nitric acid to dissolve a metal, exhausted virtually 100% nitrogen oxide (NO), a gas that reacts with oxygen to form a brown plume at concentrations as low as ...
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Petro-chemical processor meets national emission standards for hazardous air pollutants
A multitude of chemical and petroleum processing facilities across the country are now faced with having to meet new National Emission Standards for Miscellaneous Organic Chemical Manufacturing. One specific NESHAP is 40 CFR part 63, subpart FFFF. The applicability of meeting this NESHAP is: A facility must be a major source of HAP emissions Process units that: Produce organic chemicals that are ...
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Petro-Chemical Processor meets National Emission Standards for Hazardous Air Pollutants - Case study
A multitude of chemical and petroleum processing facilities across the country are now faced with having to meet new National Emission Standards for Miscellaneous Organic Chemical Manufacturing. One specific NESHAP is 40 CFR part 63, subpart FFFF. A facility must be a major source of HAP emissions Process units that: Produce organic chemicals that are not subject to other MACT standards ...
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Pharmaceutical Manufacturer Turns NOx Regulations Into an Opportunity – With a 6-Figure Annual Chemical Savings as a Bonus.
This project was for a major manufacturer of a tabletted OTC analgesic. The manufacturing process was being redesigned, and a critical aspect of the work was the re-engineering of a reactor in the initial stage of manufacturing. The client’s original process, which used nitric acid to dissolve a metal, exhausted virtually 100% nitrogen oxide (NO), a toxic, wholly non-water-soluble gas that ...
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Cellulosic biofuels meets national emission standards for hazardous air pollutants - Case study
Cellulosic Biofuels meets National Emission Standards for Hazardous Air Pollutants A multitude of new cellulosic bio-fuel processing facilities across the country are now faced with having to meet new National Emission Standards for Miscellaneous Organic Chemical Manufacturing. One specific NESHAP is 40 CFR part 63, subpart FFFF. The applicability of meeting this NESHAP is: A facility must be a ...
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Case study - ETO sterilizer abatement
OVERVIEW Product sterilization companies are generally required to utilize a pollution control device for treatment of exhaust gases from their aeration room and sterilization chambers. In the United States, they need to be in compliance with NESHAP (National Emission Standards for Hazardous Air Pollutants) regulations that dictate a 99% destruction efficiency of EtO (Ethylene Oxide), or ...
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In-situ Technology for Clean up of Halogen Contaminated Sites - Process West case study
Halogenated volatile organic solvents are found in the soil or ground-water at many former and active industrial sites. Fortunately highly effective remediation technologies are available to restore these former brownfields to a healthy state. The range of technologies includes the traditional approach where the contaminated soil is excavated and the volatile halogenated contaminants are ...
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Particulate Matter Testing - BG3 Partial Flow Dilution Emissions Sampling - Case Study
Today, the BG3 Elite Series for partial flow dilution (PFD) is the standard used to test and measure particulates by such industry giants as Caterpillar, John Deere, Perkins, JCB, and even the US EPA, and has found a global installed base of hundreds of units. On January 7, 2011, Sierra made history with the Model BG3 when PFD technology was signed into law for particulate matter (PM) emissions ...
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EPA mercury rules: Keeping the lights on while removing toxics from our air
Next week the U.S. Environmental Protection Agency is expected to finalize new rules to reduce mercury and other toxic air emissions that will affect dozens of antiquated power plants currently operating without pollution controls. These rules have stirred debate in some circles as to whether retrofitting or retiring outdated plants will cause shortfalls in electricity capacity. How will new EPA ...
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