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Bitterfeld

State-of-the-art technologies for water treatment

Bitterfeld is regarded as the centre of the chemical industry in Saxony-Anhalt. LANXESS and its wholly owned subsidiary IAB Ionenaustauscher GmbH operate a plant here for the manufacture of products for the treatment of water and liquid media. The site is part of the Liquid Purification Technologies business unit.

Ion exchange resins and reverse osmosis membrane elements

In Bitterfeld-Wolfen, we produce Lewatit® ion exchange resins and Lewabrane® reverse osmosis membrane elements. This is the world's largest and most modern plant for monodisperse ion exchange technology. Lewatit® premium products in particular have been synonymous with high-quality ion exchange resins, adsorbers and functional polymers for more than 75 years.

The tiny polymer beads are used to treat liquids. One application example is the extraction and treatment of drinking water. But they are also used in the food industry to make sugar white and sweet. They remove the salts from the raw sugar solutions, which would otherwise falsify the taste. 

Since 2011, we have also been manufacturing Lewabrane® reverse osmosis membrane elements at our Bitterfeld site. These are also used for water treatment. Membranes are used as barriers for suspended matter and even for dissolved substances.

The world's largest reverse osmosis application is seawater desalination for the production of drinking water. In the industrial sector, reverse osmosis membrane elements are used, among other things, in power plants to produce boiler feed water. In industry, they are also used to produce ultrapure water, which is required for microchip production. In these applications, reverse osmosis is often combined with an ion exchange process. 

With both technologies, we are not only the leading full-range supplier in the field of water treatment, but also the only producer of these membrane elements in Europe.

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