Air Filter Media Applications

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  • Category: Air & Climate ×

  • Subcategory: Air Filter Media ×

Filtration systems & solutions for industrial process sector

by Porvair Filtration Group     based in Fareham, UNITED KINGDOM

The process industry demands filters that can withstand the most extreme and aggressive conditions of temperature, pressure and corrosion, whilst safeguarding operators and systems from particulates and ensuring environmental protection. Each filtration and separation requirement presents its own critical challenges and requires superior reliability, durability and a robust product construction.

Sulfide Oxidation with Hydrogen Peroxide (H2O2)

by USP Technologies     based in Atlanta, GEORGIA (US) (USA)

Sulfide Odor Control Sulfide is found throughout the environment as a result of both natural and industrial processes. Most sulfide found in nature was produced biologically (under anaerobic conditions) and occurs as free hydrogen sulfide (H2S) - characterized by its rotten egg odor. We are most likely to encounter biogenic H2S in sour groundwaters, swamps and marshes, natural gas deposits, and sewage collection/treatment systems. Manmade sources of H2S typically occur as a result of natural materials containing sulfur (e.g., coal, gas and oil) being refined into industrial products. For a variety of reasons - aesthetics (odor control), health (toxicity), ecological (oxygen depletion in receiving waters), and economic (corrosion of equipment and infrastructure) - sulfide laden wastewaters must be handled carefully and remediated before they can be released to the environment. Typical discharge limits for sulfide are < 1 mg/L. Sulfide Treatment Alternatives There are dozens of alternatives for treating sulfide laden waters, ranging from simple air stripping (for the low levels present in groundwaters) to elaborate sulfur recovery plants (used to treat several tons per day at refineries and coal burning power plants). There are processes based on biology (using compost filters, scrubbing media, or inhibition/disinfection), chemistry (oxidation, precipitation, absorption, and combination), and physics (adsorption, volatilization, and incineration). Each process occupies a niche which is often defined by the scale and continuity of treatment, whether the sulfide is in solution or is a gas, the concentration of sulfide involved, and the disposition of the sulfide containing medium. However, for reasons relating to convenience and flexibility, chemical oxidation (using hydrogen peroxide) continues to grow in its scope of application. Treatment with Hydrogen Peroxide While other peroxygens such as permonosulfuric (Caro’s) acid, peracetic acid, and persulfates will oxidize sulfide, their use for this application is overkill. Hydrogen peroxide (H2O2) is considerably simpler and more cost-effective. H2O2 may control sulfides in two ways, depending on the application: Prevention - by providing dissolved oxygen which inhibits the septic conditions which lead to biological sulfide formation; and Destruction - by oxidizing sulfide to elemental sulfur or sulfate ion.

Air cleaning system for the sports facilities

by Dynamic Air Quality Solutions     based in Princeton, NEW JERSEY (USA)

For cleaner air in health clubs, gymnasiums, arenas and stadiums, Dynamic Air Cleaners are proven winners. Dynamic Air Cleaners can be found at the UNI-Dome, home of the University Of Northern Iowa basketball and football programs. In a recent IAQ upgrade to reduce the ventilation air into the building, which was constructed in 1976, Cosatini Engineering (Chicago) used the Ashrae 62 IAQ procedure to calculate a reduction of outside air needed in the facility. The original plan was to use 95% cartridge filters with a bank of carbon to meet Standard 62 requirements. Dynamic V-Banks were used in place of the passive cartridge filters in two 125,000 cfm air handlers.

Air filtration for the automotive industry

by Ahlstrom Filtration     based in Tampere, FINLAND

As a leader in automotive filtration applications, Ahlstrom has always been at the forefront of high-performance filter media.  Our Research and Development organization works hard to develop next generation products to meet the market needs for Air intake filtration.  Our air intake filter media range covers all market requirements from Heavy Duty and Automotive panel filter applications.    

 

Odour removal units for professional kitchen ventilation

by Dimtech S.A     based in Keratsini, GREECE

Our company has odour removal units for professional kitchen ventilation, for grills and food preparation areas generally. The operation of the unit is based on chemical or electrostatic filters or a combination of both. The kitchen unit KDSA (with chemical filters) series, neutralizes particles, soot, odors, grease and moisture completely. KDSA units for kitchen ventilation are installed in the cooker hood and are connected with the kitchen areas that produce smoke or where there is smoke and odors such as in kitchen funnels or in washing facilities. The air stream in the deodorizer passes through a set of filters where particles, grease, soot and odors are removed.

Water removal filtration

by Technical Absorbents     based in Grimsby, UNITED KINGDOM

SAF is the key component for a wide range of enhanced nonwoven filter media fabrics that are designed for the removal of water and particulates from aviation fuel, automotive diesel and a wide range of oils. Such fabrics help reduce problems associated with water contamination in such situations. Its versatility gives rise to cost savings over traditional cellulosic-based absorption media, while offering full compliance potential to stringent international filtration standards – particularly in the aviation fuel and hydraulic oil markets. Applications: A significant reason for the majority of oil and fuel system failures is the presence of high water levels in dissolved, dispersed and free water. SAF-based filter media fabrics can remove both dispersed and free water to very low ppm levels at industry leading rates. This leads to reduced fuel and oil degradation and provides the required filter quality for efficient machine operation.

Industrial Meshes For Hot Gas Filtration

by GKD - Gebr. Kufferath AG     based in Düren, GERMANY

The SolidWEAVE stainless steel filters from GKD have for decades been in use in a variety of applications for hot gas filtration. Knowledge of the specific requirements for the filtration of hot gases and continuous optimization and further development result in the high quality of our filter meshes.

Activated Carbon Filtration for the Air Filtration Industry

by General Carbon Corp.     based in Paterson, NEW JERSEY (USA)

General Carbon carries a complete line of activated carbon made from coal, coconut shell and wood for most vapor phase and air applications. These include impregnated carbons for specialty applications and high capacity non-impregnated carbon for H2S control. In addition, our specialty medias are ideal for the treatment of many contaminants that activated carbon may struggle with. Orders of bulk activated carbon are also acceptable as we have been a major supplier of activated carbon since 1958.

Oil Mist Seperator for Building Construction

by contec GmbH Industrieausrüstungen     based in Bad Honnef, GERMANY

Contec oil mist separators ensures the façade design of ETFE cushions for efficient and environmentally friendly glare-, heat- and UV-protection. Contec GmbH, Bad Honnef is a leading manufacturer of filtration systems, oil mist separators and liquid level measuring technology. The use of the Contec oil mist separator (COMS) in the field of building construction is definitely very innovative and our system has proven again its advantages in environmental aspects.

Wood Products

by Babcock & Wilcox MEGTEC     based in De Pere, WISCONSIN (USA)

MEGTEC is a leader in providing regenerative thermal oxidizers (RTO) for VOC control for products such as OSB, MDF, SYP, plywood, particleboard, wood pelletizing and other engineered wood products, with particular expertise in solving the problems of media plugging and alkali attack associated with wood dryer exhaust. With thousands of systems installed worldwide in many process industries, MEGTEC has the knowledge to provide you with the best solution for your specific needs. MEGTEC’s designs are modular and cleanable, using alkali-resistant ceramics and corrosion-resistant materials of construction.

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