3M Membrane Filtration (formerly Membrana)

Membrana and Hager + Elsässer Reach Agreement on Water Treatment Patent in Europe

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Membrana is pleased to announce that an agreement has been reached with Hager + Elsässer GmbH (formerly Ondeo Industrial Solutions GmbH) relating to Hager + Elsässer’s European patent EP 0 899 239. The patent applies to the treatment of water whereby RO or NF permeate is fed into a membrane contactor, which is used to remove dissolved Carbon Dioxide from water.

The agreement between Membrana and Hager + Elsässer enables Membrana and its customers to supply award-winning Liqui-Cel® Membrane Contactors for CO2 removal using air sweep to final end users.

Liqui-Cel® Membrane Contactors are used around the world for adding or removing Oxygen (O2), Carbon Dioxide (CO2) and Nitrogen (N2) to or from different liquids in the Semiconductor, Power, Pharmaceutical, Photographic, Food and Beverage, and many other industries. For example, it is known that O2 negatively impacts many processes, it is corrosive and can oxidize materials. In the power and industrial areas, piping and equipment are susceptible to corrosion. Specifically to the semiconductor market, high levels of O2 can cause lower wafer yields. Additionally, CO2 negatively impacts performance of EDI and Ion Exchange. The Liqui-Cel® Contactors offer a modular solution for O2/CO2 removal before these processes without chemicals.

Liqui-Cel® Contactors are also used to add gasses to liquids to enhance megasonic cleaning. The beverage industry looks to membrane contactors for carbonation, nitrogenation and O2 removal. These reflect only a few examples of the variety of applications where Liqui-Cel® Membrane Contactors are used.

Additionally, Membrana offers liquid ring vacuum pumps, eductors and oxygen sensors to complement the membrane contactors.

Membrana’s Industrial Membrane Group also manufactures a variety of membranes used for filtration in various industries and applications. Manufacturing facilities are located in the USA and Europe. Global markets are served through sales offices and affiliates in North America, Europe, Japan, South East Asia and China. Membrana is a wholly-owned subsidiary of Polypore, Inc., a growing worldwide developer, manufacturer and marketer of highly specialized polymer-based membranes used in separation and filtration processes.

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