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About Filtration Media
Filtration media is material that actively separates solids from a solution and/or binds select materials in a solution. Base fluids may include coolants, corrosive chemicals, gasoline, diesel fuel, hydraulic fluid, lubricants, water, oil, inks, dies, and paints. Filtration media can also remove particulates and contaminants from gas or air. Filtration grade or Beta ratio is an important specification to consider when selecting filtration media. This micron-rating characterizes a material’s ability to remove contaminants based on particle size. Water absorption, maximum pressure and maximum liquid flow or maximum gas flow are also important parameters to consider. Some filtration media is reusable or disposable. Other products meet requirements from regulatory agencies such as the U.S. Food and Drug Administration (FDA).
There are many types of organic filtration media. Activated carbons are usually made from bituminous coal or lignite and used in wastewater treatment applications. The material source and mode of activation provide specific end-use properties. Activated clay is often used to remove dissolved contaminants such as acids, oxidation by-products, and surfactants. Diatomaceous Earth (DE) is a naturally-occurring mineral with high absorption, low bulk-density, and high brightness. Cellulose is a natural, plant-based filter material with rough fibers that vary in both size and shape. Types of cellulose include cellulose acetate, nitrocellulose or cellulose nitrate, and regenerated cellulose. Like cellulose, cotton is a highly-efficient filtration media. Cotton’s irregularly-shaped fibers and strong absorption properties provide strength even under wet conditions. Other types of organic filtration media include sand and paper.
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Engineering Web: Filtration Media
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Filtration media Home > Products > Filtration media Filtration media FILTRATION MEDIA PRODUCT Code Description See Lenntech Water Treatment & Air Purification Holding B.V. Information |
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ASTM D6830 -02(2008) Standard Test Method for Characterizing... ASTM D6830 - 02(2008) Standard Test Method for Characterizing the Pressure Drop and Filtration Performance of Cleanable Filter Media See ASTM International Information |
