combustible dust Articles

  • Understanding the dangers of combustible dust

    Paper shredding is growing into a big business. Recycling and the green movement certainly planted the seeds, but regulators have added the fertilizer. Industry-changing laws have been passed to govern document security in accounting, healthcare and banking, and shredders of many varieties are becoming the tools of those trades.Five or six years ago Warde Comeaux knew only a few people who ...

  • Combustible Dust: It Doesn’t Take Much

    A dust accumulation of 1/32 of an inch deep—about the thickness of a dime—covering just five percent of a room’s surface area doesn’t sound like much, but it’s enough to cause a catastrophic explosion, according to the National Fire Protection Association (NFPA). Although good engineering and safety practices to prevent dust explosions have existed for decades, there ...


    By SafetySmart

  • A Critical Evaluation of the South African Air Quality Offsets Guideline

    There is wide recognition in South Africa to the link between the quality of life and quality of the air we breathe. The Department of Environmental Affairs (DEA) attempts to improve air quality through two key regulatory tools; emission limits, which regulate the maximum concentration of certain pollutants permissible within certain, ‘listed’ industrial stacks or vents, and ambient ...


    By WKC Group

  • Dust monitoring

    Generally, two different approaches are used to measure the amount of dust deposited on a surface; Determination of the soiling of a surface, by a change in its properties; Determination of the quantity of dust deposited, by weight. WHAT IS DUST? Dust is a generic term used to describe fine particles that are suspended in the atmosphere. Dust comes from a wide variety of sources, including soil, ...


    By Queensland Laboratory

  • Air Powered Combustible Dust Vacuums More Economical and More Powerful than Electric Counterparts

    Compressed air vacs have significantly lower upfront cost and lower yearly maintenance costs that quickly surpass the expense of compressed air production. There is a prevailing perception in the industrial world, attributable to the higher costs associated with producing compressed air, that air powered explosion proof vacuums cost more to operate. According to David Kennedy, General Manager of ...


    By AirSys Technologies, Inc.

  • Size reduction of substitute combustibles (RDF)

    The new pilot installation of SITA Wiebe GmbH, Bielefeld/Germany, processes highly calorific commercial and industrial waste to become quality-assured substitute combustibles for cement industry and/or power plants. Basic items of this ultra-modern processing installation are two one-shaft size reduction machines of type WLK 30 Super-Jumbo of WEIMA Maschinenbau GmbH, Ilsfeld. The total output of ...


  • Down with road dust

    There are more than 3.9 million miles of roadway in the United States, according to the Federal Highway Administration, and, depending on the area of the country you're in, as much as 70% of that road mileage is unpaved. The 1997 U.S. Environmental Protection Agency (EPA) National Air Quality and Emissions Trends Report states that those unpaved roads--which can cover a wide range of ...


    By Cypher Environmental Ltd.

  • Why high temperature combustion of landfill gas?

    Due to the accumulation of knowledge and the tightening of environmental law, the landfill technology has increasingly become concerned with the management of trace compounds in landfill gas. With landfill gas, contamination is through sulphur, chlorine, fluorine, halogenated hydrocarbons and heavy metals. Other trace elements such as volatile organic compounds (VOC), impose environmental ...


    By Hofstetter BV

  • Uni-wash wet dust collectors reduce industrial dust hazards

    Metal dust — it can be a fabricator’s worst nightmare. In particular, the combination of dry aluminum dust and steel dust is literally a disaster waiting to happen. The National Fire Protection Association has a list of metal dusts and the specific PPM that the air can hold of each before the serious risk of an explosion arises. As a worksite approaches the PPM safety limits of one or ...


    By ProVent, LLC

  • Vacuuming Wood Dust Can be Hazardous

    It’s well known that wood dust is highly combustible, but the practice of removing it with vacuum trucks can also be dangerous, because of the potential buildup of static electricity. WorkSafeBC has issued a bulletin stating that “static electricity discharges can ignite wood dust and therefore must be eliminated or adequately controlled during vacuuming.” When wood dust or ...


    By SafetySmart

  • Reducing the risk of dust explosion hazards

    In the wake of recent tragic and highly publicized dust explosions, companies are asking, 'Could that happen here?' and 'What can I do to prevent such an incident at my facility?' One approach is to manage dust explosion hazards as though they were subject to OSHA’s Process Safety Management (PSM) requirements (29 CFR 1910.119), even though dust hazards often are not covered under this ...


    By ABS Consulting

  • How To Avoid Dust Explosions In Your Baghouse

    A massive fire and explosion in the dust collection system of a New Hampshire wood pellet manufacturer demonstrates the need for adequate system design to prevent combustible dust explosions in general industry.  We recently published a news article on Environmental-Expert.com about OSHA’s enforcement actions concerning last year’s combustible dust fire and explosion at the ...


    By Baghouse.com

  • Waste to energy – processing waste with a high thermal value to substitute combustibles

    With the taking effect of the TASi (Technical Regulations on Estate Waste) in 2005, non-treated waste must no longer be disposed of and deposited. Commercial and industrial residues with a high thermal value such as rejects from paper industry, punchings from rubber and plastics, and other mono-fractions which are characterized by homogeneity and constant combustible properties through mechanical ...


  • New laser-based dust emission monitoring system

    Abstract A new generation of continuous particulate matter concentration monitoring instruments is presented, covering a measuring range of 0 to 1000 mg/m3. The laser-based scattered light instrument gives an improved stability as well as excellent resolution in the low range. This enables high concentration measurement as well as especially low emission monitoring down to 0.01 mg/m3 with a ...


    By Sigrist-Photometer AG

  • Manganese levels and chemical fractionation in street dust in South Africa

    Mn in street dust and soil from selected roads was studied to assess the contribution of combustion of vehicular methylcyclopentadienyl manganese tricarbonyl (MMT) to Mn levels and distribution in Pretoria, South Africa. Total Mn concentrations ranged from (329.1-863.9 μg g−1) for dust and (215.8-450.6 μg g−1) for soil. These values were significantly higher than the mean value (278.9 μg g−1) ...


    By Inderscience Publishers

  • Reducing air pollution from electricity-generating large combustion plants in the European Union

    Background In 2008, the European Environment Agency (EEA) published a first assessment of the theoretical potential to reduce emissions of nitrogen oxides (NOX) and sulphur dioxide (SO2) from electricitygenerating large combustion plants (LCPs) (EEA, 2008). That earlier study showed that improving the environmental performance of existing LCPs by applying best available techniques ...

  • Study on Behavior of Sludge-derived Combustible Gases and its Safety Control on Utilizing Bio-solids

    ABSTRACTA questionnaire inquiry on prior accidents was conducted among local government operating sludge drying and incinerating facilities and cooperating research companies that are constructing such facilities. The 88 accidents reported by the respondents were investigated and the causal mechanisms associated with each typical accident pattern (by type and ...

  • Effect of the radiation heat loss on propagation of the spherical flame through premixed coal dust

    An analytical study has been conducted to investigate the effect of radiation heat loss on the spherical flame propagation in coal–dust clouds. This research can be valuable in the development of alternative fuels; and it can be used by the fire safety and control industry. The model includes the evaporation of the volatile matter of dust particles into a known gaseous fuel (methane) and the ...


    By Inderscience Publishers

  • Polytopic vector analysis of soil, dust, and serum samples to evaluate exposure sources of PCDD/Fs

    As part of the University of Michigan Dioxin Exposure Study, soil, household dust, and serum samples were collected from over 750 households in five populations around the city of Midland and in Jackson and Calhoun Counties, Michigan, USA. Polytopic vector analysis, a type of receptor model, was applied to better understand the potential sources of polychlorinated dibenzo‐p‐dioxins and ...


    By John Wiley & Sons, Ltd.

  • Biosolids Heat Drying: Safety in Design and Owner Operation

    ABSTRACTInterest continues to grow in heat drying as a means of processing biosolids into an aesthetically pleasing product form with multiple use opportunities, while also achieving a significant reduction in both volume and weight of biosolids for off-site hauling. As the number of heat drying installations increase, so too do reports of safety incidents—an indication that Owners and facility ...

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