air cleaning Articles

  • Return of the clean air interstate rule—The court does CAIR

    In summer 2008, the U.S. Court of Appeals for the D.C. Circuit issued a dramatic decision to vacate the Clean Air Interstate Rule (CAIR) in its entirety (North Carolina v. EPA, No. 05-1244, D.C. Cir., July 11, 2008). Following a petition for rehearing, it seems the previous vacatur was just a temporary detour, as the Court reinstated CAIR on December 22, 2008. The reinstatement appears to turn ...


    By Trinity Consultants

  • Case Study - 95%+ solvent recovery to maintain clean air

    As environmental responsibility increases, more testing is being required. However, more testing means more extraction using organic solvents. To keep extraction solvents from adding to the complexity of keeping air clean, recovering the extraction solvent has become more common. BUCHI has stepped up to the challenge and met the concerns with the Syncore® Analyst. In addition to solvent ...


    By BÜCHI Labortechnik AG

  • Pleatable UPE membrane media in pulse-cleaned dust removal air applications

    Media Selection For initial tests, three media were selected for comparison. These structures are all designed for use in pulse-cleanable cartridges, with processing on blade pleaters. Arioso™ M7001-11 is a Solupor® ultra-high molecular weight polyethylene (UPE) membrane designed for F9/MERV16 efficiency at very low resistance laminated to a 200 gsm, stiff, high permeability ...

  • Case study - Wind turbine manufacturer implements clean air initiative

    Overview When you think about generating electricity from wind, clean energy comes to mind. However, the wind turbine production process can be a major source of air pollution without the proper controls in place. Manufacturing and painting the blades, towers and nacelles requires composite construction material and solvent based coatings. The potential to emit Volatile Organic Compounds ...

  • Harmonizing Emissions: A case for clean air, carbon reduction and economic growth

    At the Air and Waste Management Associations (A&WMA) meeting on April 2-3, 2008, in Washington DC, the Environmental Protection Agency (EPA) expressed the need for harmonization between whatever carbon reduction policy is adopted by the United States with existing pollution emission regulations under the Clean Air Act (CAA). The goal of this harmonization is to allow industry to reduce greenhouse ...


  • UVC keeps indoor air, a/c coils clean at College of the Sequoias

    At College of the Sequoias (COS), a California community college in Visalia, CA, indoor air quality is a high priority. “We have not had IAQ complaints, so when we discovered naturally occurring mold growth in the air conditioning coils, we decided to treat it proactively — before mold-related allergens circulated from the HVAC systems into the occupied space,” stated Eric ...


  • On-Line Fast Analysis of AMC from ppt to % levels in Clean Air Room

    To ensure people’s safety and a good repeatability of industrial process, near real-time risk management and the continuous monitoring are crucial. In the semiconductor fabrication process, particle control is an essential part. Clean room technology, which relies on the use of HEPA and ULPA filtration, has in the past exclusively focused on the control of micro- and nano-particles. ...


    By Chromatotec Group

  • Clean air research multi-year plan 2008-2012

    The Office of Research and Development’s (ORD) Multi-Year Plans (MYPs) describe what research ORD proposes to accomplish over the next 5-10 years in a variety of areas. The MYPs serve three principal purposes: to describe where the research programs are going, to present the significant outputs of the research, and to communicate the research plans within ORD and with stakeholders and clients. ...

  • Bottom line on regulating greenhouse gases under the clean air act

    How can the EPA regulate GHGs? Doesn’t the Clean Air Act only apply to air pollutants? An April 2007 Supreme Court decision (Massachusetts v. EPA) ruled that GHGs are air pollutants under the Clean Air Act. The court instructed the EPA to decide whether GHG emissions endanger public health and/or welfare, or if current science is too uncertain to make a reasonable judgment. In response to the ...

  • Regulation of greenhouse gases under section 115 of The Clean Air Act

    Section 115 of the Clean Air Act, among the various options under the current act, may offer EPA the most effective, flexible, economically reasonable, and legally supportable means by which to regulate greenhouse gas emissions. The authors argue that Section 115, the section explicitly crafted to address international air pollution, has the potential to provide an appropriately flexible path ...


    By Bloomberg BNA

  • Big Clear Sky – A short history of the Clean Air Act

    Major advances over 50 years have led to cleaner air and groundbreaking technology. The detrimental impact of industrialization to air quality in the United States went unchecked through federal legislation for most of the first half of the 20th Century. But following the 1948 industrial catastrophe in Donora, Pennsylvania – where a cloud of smog killed 20 and injured thousands – regulation of ...

  • GHG regulation under the clean air act – recent developments

    EPA’s GHG Tailoring Rule and Senate Action On October 27, 2009, EPA published the Prevention of Significant Deterioration (PSD) and Title V Greenhouse Gas (GHG) Tailoring Rule in the Federal Register, followed by a 60-day public comment period that ended on December 28, 2009. The proposed rule represents EPA’s effort to decrease the number of sources subject to major source ...


    By Trinity Consultants

  • Case Study N°I1 – Industrial Applications – Air Analysis i n Clean Air Room

    Context & Challenges To ensure people’s safety and a good repeatability of industrial process, the analysis of ambient air is crucial. Especially, electronic boards are produced in clean air room by complex lithographic process using very reactive chemicals. The nature and concentration of volatile compounds can be different depending on the chemical process and can also vary ...


    By Chromatotec Group

  • Ineffective cleaning in generic baghouses

    ABSTRACT: Background In a typical “generic” baghouse application, the cleaning is accomplished by back-flushing the filter with compressed air that travels through an orifice hole in a purge tube (blow pipe) and through a venturi. A typical generic cleaning system allows dust to be filtered at an air-to-cloth ratio of 5:1. That means for every 5 CFM of airflow, there is 1 square foot ...


    By Scientific Dust Collectors

  • The US Clean Air Act: Improving air quality and tracking greenhouse gas emissions?

    The US Clean Air Act is a federal law designed to reduce air pollution in order to improve the nation’s overall air quality. The intent of the federal law is to identify and reduce harmful substances that weaken the stratospheric ozone layer and continue to contribute to global climate change.Many of these pollutants, refrigerant gases, or Greenhouse Gases (GHGs) can be found within companies, ...


    By Verisae

  • TopAir’s Clean bench

    The clean bench is a mainstay of TopAir’s superior line of cleanroom equipment for all requirements of the biomedical, electronic, semi-conductor and defense industries. TopAir is the flagship brand of Statitech Ltd., a leading provider of cleanroom furniture and accessories since 1999. Besides the clean bench, TopAir’s premium line includes fume hoods, desiccators, weighing stations ...


    By TopAir Systems

  • The Benefits of Green Cleaning

    Did you know that over 100 trillion bacterial cells consider your body their home? It’s true, and they outnumber your regular cells 10 to 1. These tiny guests live in your mouth, nose, and gut and they make up what is known as your microbiome – your highly personalized mini-ecosystem of both good and bad bacteria. The Antibacterial Craze We’ve ...


    By Better Air LLC

  • Radioactive Clean-up

    Radioactive, nuclear, or radiation clean-up is considered as the most dangerous, difficult, and costly remediation activity after a nuclear disaster or accident.  The contamination may be found in the air, water, and soil, as wells as equipment and buildings (USEPA, 2010). Radioactive material is unstable, while the nuclei of radioactive atoms emit ionizing radiation (i.e., alpha ...


    By IWA Publishing

  • BP retail - forecourt cleaning

    Overview With help from SpillAway, TBS Bio-Services won the contract for the cleaning and degreasing of all BP Connect petrol forecourts (in excess of 400) throughout England. As part of the contract, FleetKleen Bioremedial Cleaner/Degreaser is used at all sites as it not only offers unparalleled cleaning, but is 100% safe to use and helps bioremediate and reduce waste in underground ...


  • Maintenance To-Do: Coil Cleaning

    A coil-cleaning program should be an integral part of maintaining some kinds of process cooling equipment. Most people think of coil cleaning as a building or facility prepares to turn on the air-conditioners for another season. Admittedly, spring is a perfect time to put such cleaning and maintenance at the top of the to-do list. Condenser and evaporator coils are an integral part of HVAC ...


    By Evapco Inc.

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