electropositive water filter Articles

  • A high-performance electropositive filter

    Reverse osmosis (RO) membranes have become the industry standard for purification of any feed water source. They are used extensively for producing high-purity, low-conductivity process water. They are also used for producing ultrapure water from fresh water because RO is presumed to be the ultimate purifier. Because RO filters are readily fouled by colloidal particles and biofilms, some method ...


    By Argonide Corporation

  • Evaluation of electropositive filtration for recovering norovirus in water

    The virus adsorption-elution (VIRADEL) technique has been widely used in the recovery of various enteric viruses in water, and an electropositive filter such as 1 MDS has been commonly applied. However, effective methods of monitoring waterborne norovirus (NoV) have not yet been well characterized and optimized. Hence, in this study, the VIRADEL technique was evaluated and optimized for ...


    By IWA Publishing

  • Electropositive filtration technology in automobile manufacturing applications

    Argonide Corporation began as an organization focused on the production and sale of nanopowders. By definition, nanopowders are extremely small particles (less than 0.1 micron) of materials such as nickel, copper, iron, alumina, gold, etc. These materials are in demand by research and development groups within both the public and private sectors. To date, the company is still involved in this ...


    By Argonide Corporation

  • Electropositive filtration technology in automobile manufacturing applications

    Argonide Corporation began as an organization focused on the production and sale of nanopowders. By definition, nanopowders are extremely small particles (less than 0.1 micron) of materials such as nickel, copper, iron, alumina, gold, etc. These materials are in demand by research and development groups within both the public and private sectors. To date, the company is still involved in this ...


    By Ahlstrom Corporation

  • Argonide/Toyota – Electropositive filtration technology in automobile manufacturing applications

    Argonide Corporation began as an organization focused on the production and sale of nanopowders. By definition, nanopowders are extremely small particles (less than 0.1 micron) of materials such as nickel, copper, iron, alumina, gold, etc. These materials are in demand by research and development groups within both the public and private sectors. To date, the company is still involved in this ...


    By Argonide Corporation

  • Quantitative characterization of the inhibitory effects of salt, humic acid, and heavy metals on the recovery of waterborne norovirus by electropositive filters

    The virus adsorption-elution technique (VIRADEL) using electropositively charged filters is used frequently for recovering enteric viruses from water. The filter-absorbed virus is typically eluted, concentrated, and subsequently detected by culture or molecular methods. Human norovirus (HuNoV), one of the most important waterborne pathogens, cannot be cultivated by conventional culture methods ...


    By IWA Publishing

  • High performance microbiological filter

    Filtration processes are a large cost component of pharmaceutical manufacture. The particle retention efficiency, particle capacity of the filter and the liquid flux all impact on product cost. A non woven electropositive filler media has been developed whose active component is an alumina (AlOOH) fiber two nanometers in diameter and having a surface area of 350-500 m7g. The nano fibers are ...


    By Argonide Corporation

  • Non-woven electrostatic media for chromatographic separation of biological particles

    The filtration and separation of biological particles has been estimated as 40% of the cost in the manufacture of pharmaceuticals. Liquid chromatography that is the principal method for separating biological particles uses a permanent phase of ultrafine adsorbent particles such as porous silica or resin spheres with particle sizes down to about 1 micron. Speed and resolution are two competing ...


    By Argonide Corporation

  • Comparison of hollow-fiber ultrafiltration to the usepa viradel technique and usepa method 1623

    Received for publication April 2, 2008. Hollow-fiber ultrafiltration (UF) is a technique that is increasingly viewed as an effective alternative for simultaneously recovering diverse microbes (e.g., viruses, bacteria, parasites) from large volumes of drinking water. The USEPA has organism-specific methods, including Method 1623 for Cryptosporidium and Giardia and the virus adsorption–elution ...

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