Vent Filter Articles

  • Explosion Proof UV Lights for Commercial and Industrial HVAC systems

    In the past decade, more and more people have been installing UV lights in their HVAC systems to eradicate harmful bacteria. A timely study from Duke University Medical Center has proven the effectiveness of using UVC bands to disinfect a myriad of dangerous microbes, including drug-resistant bacteria, such as Acinetobacter, Clostridium difficile and vancomycin-resistant enterococci (VRE). During ...


    By Larson Electronics LLC

  • How to Survive Sandstorm Season

    Asthma awareness is crucial when living in the GCC, especially when we live in a climate which has significant environmental triggers such as sandstorms. Several studies conducted in the Arabian Peninsula countries with a high rate of sandstorms, confirmed the increased prevalence of asthma in those countries. It was also reported that sandstorms frequently cause adverse health effects on the ...


    By Camfil Ltd

  • Working on a Love/Hate Relationship with the Surface Chemistry of Membrane Filters

    Water, oils, and solvents sometimes need to be filtered. But when you see filters labeled as hydrophilic, hydrophobic, and now oleophobic; what does all this mean?  Sterlitech currently offers membrane disc and sheet filters in 10 different polymer types and 4 inorganic filters. 2 of the polymer types are subdivided into 4 subgroups based on surface ...


    By Sterlitech Corporation

  • Landfill leachate treatment

    Landfills are categorized by regulations in three types: industrial, municipal, and hazardous. Individual landfills may be further differentiated by the types of waste which they accept. All landfills are required to be capped, usually occurring at the end of each day. The cap is typically 6-8” of soil. The cap reduces odor and loss due to wind. At the closing of the landfill, a permanent ...


    By WesTech Engineering, Inc.

  • Pure water from Kinetico at the Worcestershire Royal Hospital case study

    When the Worcestershire Royal Hospital opened, it had been equipped with a Kinetico water treatment system to supply pure hot water to its theatre areas and to washer disinfector units used for cleaning and disinfecting medical devices. In recent years, partly in response to concerns about the transmission of variant CJD via reusable surgical instruments; and also with regard to the risk ...

  • Exide Battery | Latest Prices, Models, Specifications Online

    Exide is one of the most preferred car and inverter batteries in India. These batteries are manufactured by Exide Technologies, a manufacturer with an undeniable presence in various parts of the world. Exide has been able to survive the competition that exists in this segment and continues to rule the roost because of its commitment to stay true to its quality and create batteries that last a ...


    By BatteryBhai.com

  • Modelling and simulation of containment retention factor for can-type containment

    Severe accidents cause the failure of fission product barriers and allow the fission products to escape into the environment. The containment is the last barrier for fission products. Thus, containment spray system, heat removal system, recirculation filtration system, Containment Filtered Venting System (CFVS) and containment exhaust filtration system are installed in the containment to ...


    By Inderscience Publishers

  • New home with Puraflow septic system and odor complaint - Case Study

    Problem After installation of a Puraflow septic system the customer complained of odors in his yard. The contractor installed residential vent odor filters on the tank vent on the roof vents. The residential odor filters improved but did not eliminate the problem. The contractor reviewed the problem with Simple Solutions and determined that the problem was due to the ...


    By Simple Solutions Dist. LLC

  • Plant area monitoring at Krško

    Post-Fukushima upgrades at Krško in Slovenia (www.nek.si) are being implemented in accordance with the requirements of the national regulator and the plant owners. The first phase, including a passive containment vent filtering system and hydrogen recombiners, a new emergency diesel generator, and a protected store of mobile emergency equipment, is already completed. The next phase in ...


    By Bertin Technologies

  • To prevent blinding in dust collection systems, consider filter type, filter size and selection of the filter media used

    All dust collection systems, regardless of size, share a common problem—dust blinding. Simply stated, blinding is defined as when dust particles plug the holes in a filter and stop the flow of air through the filter, resulting in the dust collector performing poorly. All types of collectors, whether stand-alone units, cyclones or full-scale baghouses, are subject to blinding. To better ...


    By American Fabric Filter Co

  • Case study - Client: City of Chicago, Parks Division

    Project: Rooftop rainwater to flush toilets. Comfort stations at 40th Street and Osterman Beach. Challenge: The Parks Division of the City of Chicago wanted to its two new comfort stations along the Lake Michigan Lake Shore Drive to be environmentally responsible and serve as demonstration projects for the the city's efforts toward sustainable design.   ...

  • Mitigating methane emissions from passive landfill vents: a viable option for older closed landfills

    This study investigated the use of biofilters to reduce methane emissions from landfill passive gas vents. Two biofilter designs were evaluated. The two filter designs achieved similar percent oxidation averages. The radial biofilter design, however, obtained a much higher methane oxidation rate. The higher surface area of flow in the radial biofilters decreased the methane influx leading to ...


    By Inderscience Publishers

  • Weigh batching: the benefits of an automated system

    In many plants that batch-blend bulk products, weigh batching is a manual, time-consuming operation in which ingredients are weighed individually before being charged to a blender or other process vessel. A significant number of such plants could benefit from the installation of an automated weigh batching system. For small as well as large operations, an automated weigh batching system can pay ...


    By Flexicon Corporation

  • Odor Eliminators For Roof Top Vents Often Called Stink-Pipes

    Every state, city, and village either has odor ordinances or treats obnoxious odors perceptible beyond property lines as public disturbances/nuisance. All plumbing vent stacks produce odors unless they fitted with a filter. OSHA warns that levels of 300-ppm (H2S) cause the olfactory nerve to lose sensitivity. At first a “rotten egg” odor is detected but on the second or third breath the odor ...


  • Organics cart and container trends

    WHEN it comes to figuring out what cities, states and provinces are still throwing away, food residuals from households, commercial businesses and institutions continue to top the list. And as more jurisdictions look to adopt Zero Waste goals and mitigate methane emissions from landfills, the obvious candidate to boost diversion rates is the food residuals stream. In cities and towns that already ...


    By BioCycle Magazine

  • Process Vent Handling Hydrochloric Acid Vapors

    Background:This Roche facility in Belvidere was involved in the pilot manufacturing of innovative Vitamin C products. One step in the manufacturing process utilized a vacuum belt filter operation which created undesirable vapor by-products. These corrosive vapors were collected and romoved via vent lines to be absorbed using a carbon bed process (scrubbed). The vapors involved were HCL, ...


    By FAB-TECH Incorporated

  • Nature’s Own - Biofiltration process offers promise of (near) energy-free pollution abatement

    A filter could be described as any substance through which liquid is passed to remove suspended impurities. Although a “biofilter” is actually not a filter, “biofiltration” is on the threshold of finding a market as a compliance solution for air pollution regulations after a number of false starts. Biofilters have long been used as a means for reducing objectionable odors in Germany, the ...


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