Specialty chemicals company Lanxess has launched new Lewabrane Ultra Low Pressure (ULP) line for removing micropollutants in water treatment. These ULP elements display higher water permeability than the standard elements, while offering the same high level of rejection of critical substances. The company has also doubled its capacity of producing membrane.”We have expanded the capacity of our plant in Bitterfeld so that we can continue meeting the rising demand for reverse osmosis membrane elements. This step makes us even more attractive as a supplier to major customers,” said Jean-Marc Vesselle, head of the liquid purification technologies business unit at Lanxess.
Lanxess has been continuously expanding its line of membrane elements since production began in September 2011 and the products were introduced to the market in early 2012. Today, numerous types of Lewabrane elements are available in different sizes, which can be optimised for high fouling resistance, high energy efficiency or high performance.
Production of membrane elements for the Lewabrane line is a multi-stage process. It begins with the fabrication of a thin-film composite membrane comprising several individual layers. A polysulfone base layer and an active filter layer are applied on a nonwoven base substrate. The filter layer is made of polyamide and applied in a complex coating process. Produced as flat components, the reverse osmosis membranes are then wound by fully automated autowinders into spiral-shaped elements. This design helps to conduct untreated water towards the membrane surface and to collect the permeate (filtrate). In addition to the membrane elements plant, Lanxess also operates the world’s largest plant for monodisperse ion exchange resins in Bitterfeld.
Lanxess will also exhibit at Aquatech 2017 which will kick off from October 3, 2017 in Amsterdam. It will showcase its Lewatit-brand ion exchangers, its Lewabrane line of reverse osmosis membrane elements and its Bayoxide iron oxide adsorbers for water treatment. “As one of the world-leading suppliers of products and solutions for water treatment and purification, we support our customers in managing scarce water resources as efficiently as possible. Our products meet the highest German and international production and quality standards. At Aquatech, we want to demonstrate our competence as an experienced, all-around supplier to a broad, international, professional public,” said Vesselle. (RR)
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