process hazard Articles

  • NEC Classifications and Divisions for Hazardous Locations

    Electrical equipment in hazardous (classified) locations present a serious threat for workers due to the existence of explosive dust and vapors. Examples of such facilities range from grain mills and gasoline stations to aircraft hangars and chemical manufacturing plants. To prevent devastating explosions that may occur from the ignition of combustible particles in the atmosphere, the National ...


    By Larson Electronics LLC

  • Processing Hazardous Waste

    AVA is one of the leading suppliers of machines and system solutions having its core competencies in mixing and drying of any kind and in any industry. One of AVA’s vital businesses lies in developing and supplying turn-key (mobile) plants for processing contaminated recyclables and wastes using high vacuum and/or high temperatures. Comprising the core elements ...


  • Flammable Hazards

    Flammable Hazards The difference between a gas and a vapor is that vapors arise from liquids, whereas gases are normally in a gaseous state. Flammable vapors present additional sampling concerns (for example, we must prevent vapors from returning to the liquid state during sampling). The 3 Elements of Fire Three elements must be present for a flammable ...

  • A New Apparatus for the Evaluation of Electro-Kinetic Processes in Hazardous Waste Management

    Possible uses of electro-kinetics for hazardous waste site remediation are being investigated. This paper describes a new apparatus which has been specifically designed, fabricated, and assembled to evaluate the viability, feasibility, practicality, and potential costs of these conceivable techniques experimentally. Results of studies on the existence of electro-osmotic flow in compacted clay and ...


    By ASTM International

  • Health Hazards of Welding

    At present, it is estimated that more than one million workers are employed as welders worldwide (Sundin, 1998), with more than three million performing welding intermittently as part of their work duties (Sferlazza and Beckett, 1991). Manual metal arc welding (MMAW) and flux core arc welding (FCAW) are two commonly used procedures in the construction industry and in numerous other industrial ...


    By Valahia University

  • The Bioremediation Process

    Bioremediation allows natural processes to clean up harmful chemicals in the environment. Microscopic 'bugs' or microbes that live in soil and groundwater like to eat certain harmful chemicals, such as those found in gasoline and oil spills. When microbes completely digest these chemicals, they change them into water and harmless gases such as carbon dioxide. In order for microbes to clean up ...


  • Safety and hazards in CCS projects

    Carbon capture and storage is now on the technological tipping point – it has reached critical mass with one large-scale, fully integrated power project now almost operational at the SaskPower Boundary Dam project in Canada, using enhanced oil recovery. In the UK, following the announcements of progress at two projects, Peterhead and White Rose, the government’s competition process ...


    By Energy Institute (EI)

  • New Chemical hazards in the workplace

    In the days when Industrial Hygiene became a recognized scientific discipline, smoke stacks belched black smoke in River Rouge, MI and Pittsburgh, PA. Men worked in clouds of coal and asbestos dust and labor was hard, physical and usually dangerous. Personal protective equipment was rare; its use, even rarer and its protective effect marginal. Today, the face of manufacturing has changed ...


    By Atlantic Environmental, Inc.

  • Mold! Hazard or Hoax?

      Let me address the two issues in reverse order.  The Hoax The biggest hoax is the hysteria over the notorious black mold that grows on sheetrock.  This black mold is formally known as Stachybotrys chartarum or Stachybotrys atra.  The horror stories ...

  • Nanotechnology – what is it? are there hazards?

    This is the first of a series articles on the emerging field of Nanotechnology. What is it? In short – small! Very small! Very, very small! Nanotechnology comes from the prefix Nano which, in English, means 1/billionth, just as micro means 1/millionth. So Nanotechnology involves 2 things: 1) extremely small man-made materials – some even as small as 1 atom thick, ...


    By Atlantic Environmental, Inc.

  • Management of Hazardous Wastes

    ' Management of hazardous waste is a growing concern in many countries. The long-term impacts and costs of improper disposal can be very high and the emphasis must be on prevention. A comprehensive management system should include (i) policies, institutions and effective regulations and (ii) adequate and acceptable disposal facilities (either public or private). This note outlines the key ...


    By The World Bank

  • Washington: hazard standards

    The Occupational Safety and Health Administration (OSHA) proposed on Sept. 30, 2009, to align the Hazard Communication Standard (HCS) with provisions of the United Nations Globally Harmonized System of Classification and Labeling of Chemicals (GHS). The HCS requires chemical manufacturers and importers to evaluate chemical hazards and provide information to subsequent users. The standard now ...


    By Bergeson & Campbell, P.C.

  • Toxic and Hazardous Materials in Electronics

    Untitled Document Introduction In October 2000 Environment Canada released a report called Information Technology (IT) and Telecommunications (Telecom) ...

  • Hazardous Waste Disposal

    Untitled Document Overview We're all aware of the importance of following safety precautions when we work with hazardous chemicals. ...


  • Regulation of Oil-Bearing Hazardous Secondary Materials From the Petroleum Refining Industry Processed in a Gasification System to Produce Synthesis Gas

    The Environmental Protection Agency (EPA) is revising its hazardous waste management regulations under the Resource Conservation and Recovery Act (RCRA) to further promote the environmentally sound recycling of oil-bearing hazardous secondary materials generated by the petroleum refining industry. Specifically, EPA is amending an existing exclusion from the definition of solid ...

  • Shredding of highly flammable hazardous waste

    Satrind S.p.A. has a consolidated experience in engineering plants with nitrogen blanketing protection system for shredding of highly explosive hazardous waste in previously sealed into proper containers (such as metal or plastic drums, IBC tanks, etc.) and sludge material. During treatment of hazardous wastes, vapors or flammable gases are released with dangerous emissions which are highly ...


    By SatrindTech Srl

  • Use of earthworms (Eisenia fetida) and vermicompost in the processing and safe management of hazardous solid and liquid wastes with high metal contents

    Two feasibility studies using the earthworm (Eisenia fetida) and vermicompost in the processing and remediation of solid and liquid wastes with high metal content are presented: vermicompost as adsorbent substrate for remediation of wastewaters contaminated with metals; earthworms for remediation of arsenic (As) and mercury (Hg) in landfill soils. The feasibility of vermicompost for the ...


    By Inderscience Publishers

  • Treatment of hazardous landfill leachate using Fenton process followed by a combined (UASB/DHS) system

    Fenton process for pre-treatment of hazardous landfill leachate (HLL) was investigated. Total, particulate and soluble chemical oxygen demand (CODt, CODp and CODs) removal efficiency amounted to 67%, 47% and 64%, respectively, at pH value of 3.5, molar ratio (H2O2/Fe2+) of 5, H2O2 dosage of 25 ml/L and contact time of 15 min. Various treatment scenarios ...


    By IWA Publishing

  • A chance to drive hazardous waste policy

    The proliferation of energy-from-waste (EfW) power plants is making a significant contribution to the UK’s efforts to end its reliance on harmful fossil fuels. But while EfW plants provide a solution to municipal waste, they also produce a low amount of hazardous waste in the form of air pollution control residue (APCr). Despite numerous solutions existing that process and reuse APCr ...

  • When are Oil Wells an Explosive Hazard?

    Contrary to popular belief, an oil well can be an explosive hazard even when it is not in operation (pumping steady). An EnergyWire review of federal labor statistics cited that the oil and gas sector experiences the most deaths from fires and explosions, compared to other private industries. Risks of Explosive Elements around Oil Wells A recent explosion in ...


    By Larson Electronics LLC

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