Subdirectories of Filtration:
Websites on Filtration: Air Pollution Control Technology Fact Sheet Fact sheet from the US Environmental Protection Agency, describing the properties, characteristics and applications of paper based and nonwoven high efficiency particle air (HEPA) and ultra low penetration air (ULPA) filtration media. [PDF] Behaviour of Chelating Fibers aving Polyol Groups in Column Mode Absorption if Boric Acid Technical paper about Tris and Nmgl grafted, polyethylene coated polypropylene fibers for nonwoven filtration cloth. Authors: Akinori Jyo and others. [PDF] Characterising the Liquid Filtration Performance of Nonwoven Media Technical paper describing a wide array of wet- and dry-laid, and meltblown nonwoven filtration media, and their structures, properties and applications. From Lydall Filtration and Separatio, Inc. [PDF] Chemical and Mechanical Damaga to Felts Technical paper describing the result of a field study, dedicated to the development and formulation of the principles of chemical and mechanical wear of paper machine felts. Author: Donald L. Gibbon. [PDF] Chemical and Thermal Stability of Nonwoven Filtration Media in Fluid Power Applications Technical paper evaluating different nonwoven wet-laid microglass filtration media for compatibility with a range of hydraulic fluids at different temperatures. From Lydall Flitration and Separation, Inc. [PDF] Degradation Processes in Corona-Charged Electret Filter Media with Exposure to Ethyl Benzene Technical paper, describing the assessment of the degradation of filtration performance of corona-charged nonwoven media, through exposure with liquid and vapor stage ethyl benzene. Authors: Warren J. Jasper and others. [PDF] Design and Testing of Antistatic Filters for Industrial Air Filtration Technical paper examining the filtration and electrical properties of membrane and non-membrane filter media manufactured from polyester nonwoven needlefelt, including a review of recent advances in membrane performance and test results. From W.L. Gore and Associates. [PDF] Designing Nonwovens to Meet Pore Size Specifications Technical paper, reporting on a study focused on the development of a mathematical basis by which to design and construct a bi-component spunbond island-in-the-sea nonwoven fabric for filtration applications with given pore size specifications. Authors: Glenn E. Simmonds and others. [PDF] The Effect of Anisotropy on In-Plane Liquid Distribution in Nonwoven Fabrics Thesis on the determination of the effect of anisotropy in the liquid distribution of a nonwoven fabric utilizing a device which records the liquid spread. Also, an introduction of a new method to measure the intrinsic wicking properties of a nonwoven fabric. Author: Amy Konopka. [PDF] Electrical Resistivity of Active Carbon Nonwovens Technical paper about the techniques and procedures for making a nonwoven fabric precursor and their effect on the magnitude of the electrical resistivity of active carbon nonwovens manufactured from this precursor. Authors: Romualda Cislo and others. [PDF] Electrospinning and Porosity Measurements of Nylon-6/Poly(ethylene oxide) Blended Nonwovens Technical paper, describing a simple method to create nanofiber electrospun nonwoven filtration media from polyamide-6 and polyethylene oxide (PEO) polymers, and providing a strategy for controlling pore size distribution independently from fiber formation. Authors: Margeret W. Frey and Lei Li. [PDF] Evaluating Filtration Media Technical article about a comparison of the major characteristics of polymeric membrane and nonwoven filtration media. From Du Pont de Nemours. Authors: Dr. Ernst Mayer and Jennifer Warren. [PDF] Fabric Filters Extensive technical paper discussing the various types and cost calculations of fabric filters and the required auxiliary equipment, followed by a review of the related fabric filtration theories forming a foundation for sizing procedures. Authors: James A. Turner and others. [PDF] Hydrophobic Hollow Fiber Membranes for Treating MTBE-Contaminated Water Scientific paper about the application of hydrophobic hollow fiber membranes (HFM) for the treatment of water contaminated with methyl tert-butyl ether (MTBE). Authors: A. Keller and B. Bierwagen. [PDF] Improved Fiber Hydroentanglement Using Pulsed Elliptical Jets Technical paper describing the physical properties and filtration characteristics of hydroentangled nonwoven filter media made from splittable and expanded surface area fibers, manufactured with pulsation apparatus and elliptically formed nozzle jets. Authors: Michael Ellison and others. [PDF] Investigation on Charge Deterioration of Electrically Charged Filter Media Using Electric Force Microscopy Technical paper presenting an investigation on the effect of exposure to organic solvents on the filtration performance of electret filter media, using different organic solvents and electret filter media. Author: Jooyoun Kim. [PDF] Liquid Extrusion Techniques for Pore Structure Evaluation of Nonwovens Technical paper analyzing two different liquid extrusion techniques applied to determine pore structure of nonwoven materials, and an evaluation of the results obtained. Authors: A. Jena and K. Gupta. [PDF] Membranes as Pretreatment to Desalination in Wastewater Reuse Technical paper reviewing the benefits of wastewater reuse for industrial and municipal applications by demonstrating how continuous microfiltration (CMF) pretreatment to reverse osmosis (RO) can reduce capital and operating costs, improve efficiency, and enable reliable operation on water resources. Authors: Bruce Durham and others. [PDF] Modification of Air Filter Media With Nylon-6 Nanofibers Technical paper, describing a technique of electrospinning more efficient air filtration media from polyamide-6 nanofibers with various weight covering levels, using a varying number of multi-nozzle banks to increase coverage level while decreasing fiber size. Authors: Lei Li and others. [PDF] Nanofiber in Filtration Applications in Transportation Technical paper about the construction and performance of filter media using nanofiber in engine, gas turbine, and mining vehicle cabin air filtration systems. From Donaldson Company, Inc. Authors: Timothy Grafe and others. [PDF] Nanofiber Incorporated Glass Fiber Filter Media Master of Science thesis reporting the results of research to model the steady state performance of coalescing filter media made of micro glass fiber, with and without polymer nanofibers, and to validate with experimental data. Author: Priyavardhana Srinivasan. Nanofiber Webs from Electrospinning Technical paper about the performance of nonwoven nanofiber filtration media in a mining vehicle air filter system. From Donaldson Company, Inc. Authors: Timothy H. Grafe and Kristine M. Graham. [PDF] Nanofivers: A Novel Approach to Filtration Short article about the development and commercialisation of custom manufactured nanofiber membranes, whiskers and three-dimensional structured filtration media from a variety of organic, inorganic and biological polymers, and using proprietary technology. From eSpin Technologies, Inc. [PDF] New Materials and Processes for Regenerable Collective Protection Air Purification Systems Technical article about the development of a new system of collective protection equipment (CPE) for military, industrial and medical applications, from sintered metal micrifiber based media. [PDF] Nonwoven Liquid Filtration Media Construction and Performance Technical paper discussing the construction, performance and applications of carded, needlepunch, spunbond, meltblown and wet-laid nonwoven media for liquid filtration applications. From Lydall Filtration and Separation, Inc. [PDF] PMIAPP USA. A collection of technical articles from the PMI, Inc. web site. The subjects are pore size characterization and measurement, and capillary flow porometry for nonwoven fabrics as filtration media. Polymeric Nanofibers in Air Filtration Applications Technical paper about a process for the manufacture of nanofibers, and the benefits, limitations, construction and performance of filtration systems using polymeric nanofiber media. From Donaldson Company, Inc. Authors: Kristine Graham and others. [PDF] Polymeric Nanofibers in Air Filtration Applications Technical paper about a process for the manufacture of nanofibers, and the benefits, limitations, construction and performance of filtration systems using polymeric nanofiber media. From Donaldson Company, Inc. Authors: Kristine Graham and others. [PDF] Pore Volume of Nanofiber Nonwovens Technical paper describing a study of measuring the pore volume and distribution, and pore diameter size using mercury intrusion, liquid extrusion and capillary flow porosimetry. Authors: Akshaya Jena and Krishna Gupta. Predicting Nonwoven Sediment Filter Performance Technical paper testing the liquid filtration performance of nonwoven media of various constructions and fiber blends by standard paper and nonwoven test methods, and proving that filter performance is predictive only within media of the same construction and under the same circumstances. From Lydall Filtration and Separation, Inc. [PDF] Primer on Nonwoven Fabric Filtration Media Overview of the history, materials, media forms, characteristics, manufacturing methods, applications and markets of nonwoven fabrics for filtration media. Author: Edward C. Gregor. [PDF] Submicron Filtration Media Technical paper discussing the different types of wetlaid, drylaid and membrane media available for submicron filtration applications, and comparing their methods of construction, performance and cost. From Lydall Filtration and Separation, Inc. [PDF] Synthetic Split Microfiber Technology for Filtration Scientific article about the applications of synthetic split microfibers in nonwoven filtration media. Tables, technical specifications, and photo's. From Fiber Innovation Technology, Inc. DOC file. Authors: Jeff Dugan and Ed Homonoff. Transport Properties of Porous Membranes Based on Electrospun Nanofibers Technical paper discussing the factors influencing the fabric structure and transport properties of electrospun nonwoven membranes for filtration and protective clothing applications. Authors: Phillip Gibson and others. [PDF] Treatment and Reuse of Textile Effluents Based on New Ultrafiltration and Other Membrane Technologies Report of the results of experiments with various diferent filtration membranes on a laboratory pilot plant in order to verify the possibility of reusing textile wastewater. Authors: M. Marcucci and others. [PDF]
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