tank vapor control Articles

  • The design of static mixer heat transfer equipment for adhesives, sealants, resins and polymers.

    The fluids handled within the adhesives and sealant industries are amongst the most difficult to handle of any in the main process industries globally. The characteristics which make them particularly difficult to handle include: High viscosities (typically 1-2000 Pa.s, or 1000 to 2 million cP). Often non-Newtonian (viscosity is not constant and varies with shear rate). Some ...


    By National Oilwell Varco

  • Methods of Water Purification

    This article is excerpted from 'Pure Water Handbook' published by Osmonics®, Inc. of Minnetonka, Minnesota USA and is printed with permission of Osmonics, Inc. Water treatment can be defined as any procedure or method used to alter the chemical composition or natural 'behavior' of a water supply. Water supplies are classified as either surface water or groundwater. The majority of public or ...

  • Methods of Purification

    Water Innovations Water Systems Carbon Filtration is used for several reasons. Its primary purpose is the reduction of chlorine to less than 0.1 ppm. Chorine can damage softener resins, reverse osmosis membranes, and mixed bed deionization resins. Activated carbon will also help control tastes and odors, provide organic and hazardous organic chemical ...


    By Water Innovations, Inc

  • What the REC? Understanding RECs, CRECs and HRECs in a Phase I Environmental Site Assessment

    With all of the acronyms in the environmental consulting industry, reading a Phase I Environmental Site Assessment report can be a challenge.  And if the report contains the acronym REC, confusion may give way to dread. A Recognized Environmental Condition, or REC, is a ...


    By PM Environmental

  • Chemical Industry: Packed Cyclone Separator Removes Dust Particles While Recycling Process Liquids Chemical Industry New Solutions to Plant Problems Case study

    Problem: The Monomeros Colombo Venezolanos plant in Barranquilla, Colombia, jointly operated by the South American countries of Colombia and Venezuela, produces caprolactam for the textile industry and various chemical fertilizers for agricultural use. Recently agricultural plant capabilities were increased with the addition of process units to improve the production and quality ...


    By CR Clean Air Group, LLC

  • Packed Cyclone Separator Removes Dust Particles While Recycling Process Liquids; New Solutions to Plant Problems

    Problem: The Monomeros Colombo Venezolanos plant in Barranquilla, Colombia, jointly operated by the South American countries of Colombia and Venezuela, produces caprolactam for the textile industry and various chemical fertilizers for agricultural use. Recently agricultural plant capabilities were increased with the addition of process units to improve the production and quality ...


    By CR Clean Air Group, LLC

  • Bioventing systems at Alaska air force base achieve cleanup closures

    The U.S. Air Force and Alaska Department of Environmental Conservation (ADEC) collaborated in installing and operating seven full-scale bioventing systems over the last 10 years to address hydrocarbon and VOC contamination at the King Salmon Airport (KSA) in Alaska. Five of the systems achieved cleanup closure within five years of operation, and another is currently under closure review. The ...

  • PureAire Combines Oxygen and CO2 Sensors to provide a Dual Gas Monitor to the Marketplace

    As a recognized leader in O2 safety monitoring, PureAire recently explored the need for an O2 monitor where carbon dioxide is used. There are four key cryogenic gases; nitrogen, helium, argon, and carbon dioxide (CO2), which can create an oxygen deficient atmosphere. Material Safety Data Sheets (MSDS) covering cryogenic gases cite that a cryogenic leak can create an unsafe ...

  • A Citizen`s Guide to Bioremediation

    What is bioremediation? Bioremediation is a treatment process that uses naturally occurring microorganisms (yeast, fungi, or bacteria) to break down, or degrade, hazardous substances into less toxic or nontoxic substances. Microorganisms, just like humans, eat and digest organic substances for nutrients and energy. In chemical terms, 'organic' compounds are those that contain carbon and hydrogen ...

  • LED Applications for Oil and Gas Refining and Processing

    Oil and gas processing facilities are unsafe due to the existence of hazardous compounds during operations. When addressing such issues, companies in the sector may deploy explosion proof lighting systems to prevent the ignition of sparks created from the electrical equipment. The adoption of LED technology in oil and gas refineries has helped reinforce key safety measures associated with ...


    By Larson Electronics LLC

  • NFPA 820 Compliance in Wastewater Treatment Plants

    Wastewater treatment plants are essential structures in cities and small communities. Such facilities are closely monitored by several professional institutions, such as OSHA and the NFPA. When it comes to the latter group, guidelines set forth in NFPA 820 are regulations that dictate fire hazards in such facilities. Fire related accidents in wastewater treatment facilities are uncommon. However, ...


    By Larson Electronics LLC

  • The Power of the Moon

    The influence the moon has on life on earth is disputed. However, during an assignment in Southeast Asia, vibration experts from Sulzer were able to clearly confirm that the moon can even affect pumps. With its broad expertise, the Sulzer team was able to solve an unusual case of vibration. Southeast Asia is a key exporter of LNG (liquefied natural gas) to global markets, and it is ...


    By Sulzer Ltd.

  • Liquid Level Sensor Technology Decision Tree

    Here it is, the week after Christmas, and you still haven’t gotten that special something for your process system. A liquid level sensor would be great, but you just aren’t sure what type of sensor would be best for you, ...

  • How PPE Makes Mining Industry Safe and Secure

    Work-related health and safety has always remained a cause for concern among industry experts, managers and workers. Many industries like energy, construction, fishing and farming report high incidence of casualties. The potential hazards that miners face daily in their workplace are plenty. Many of these hazards have progressive consequences that are not realized until too late. The effects ...


    By KWRS

  • Today’s vulnerable diesel fuel

    When the Environmental Protection Agency (EPA) mandated a change to ultra-low sulfur diesel (ULSD) in 2007, it caused some significant problems for fleets. ...


    By Semler Industries Inc.

  • What`s New - In-Vessel Composting

    IF YOU are considering some sort of enclosed vessel for composting food residuals, yard trimmings, biosolids, manure, animal mortalities or other waste streams, there is no shortage of options to consider. Domestic and international technology providers offer agitated and nonagitated enclosed systems, as well as rigid and nonrigid containment. Unlike some of the other equipment categories in ...


    By BioCycle Magazine

  • Peroxygen Mediated Bioremediation of MTBE.

    ABSTRACT: Evidence is mounting, from laboratory and field studies, that oxygen plays a role in the bioremediation of methyl tertiary butyl ether (MTBE). Our experience with a number of commercial applications of peroxygen, in the form of Oxygen Release Compound (ORCâ), correlates the provision of enhanced aerobic conditions with enhanced MTBE biodegradation. Subsequent laboratory and field ...


    By Regenesis

  • QUADRANT SR Thermal Oxidizer & the chemical industry - Case study

    Chemical processing facilities across the country are facing ever tightening restrictions for volatile organic compound (VOC) and hazardous air pollutant (HAP) emissions. These emissions can be generated from such points as process vents, storage tanks, fugitive releases, among others…. To achieve compliance with Clean Air Act Amendments, facilities may have to apply maximum achievable ...

  • Vinyl Chloride Attenuation By Direct Injection of Time-Release Magnesium Peroxide.

    ABSTRACT: This case study shows that there is potential to remediate dissolved vinyl chloride by oxygenation in the field. Residual vinyl chloride concentrations have been remediated in the field at a mid-western site with a phosphate-intercalated peroxygen (ORC®, a proprietary formulation of magnesium peroxide that releases oxygen slowly). The site was formerly operated as an aluminum coating ...


    By Regenesis

  • Five Additional Technologies Evaluated After ERH Application at Camp Lejeune

    Groundwater at Site 89 of Marine Corps Base Camp Lejeune in North Carolina is contaminated with two dense non-aqueous phase liquid (DNAPL) plumes and a large dissolved plume. The Navy took a phased approach over the past six years to address each of these components. In 2003, electrical resistive heating (ERH) was evaluated in a pilot study to treat one DNAPL plume. In 2006, field-scale ...

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