Dow filmtec membranes specifications. This membrane exhibits excellent performance in terms of flux, salt and organics rejection, and microbiological resistance. FilmTec produces two different types of polyamide membranes for use in water purification. The first is the FT30 chemistry, which is an aromatic polyamide and is used in all FilmTec's reverse osmosis membranes and the NF90 nanofiltration membrane patented by John Cadotte at FilmTec in 1969. Under certain conditions, the presence of free chlorine and other oxidizing agents will cause premature membrane failure. Following the proper start-up sequence also helps ensure that system operating parameters conform to design specifications so that system water quality and productivity goals can be achieved. 45-D04388-en). With the intent to assure a continuous, consistent, high quality supply of FILMTEC products to the rapidly growing reverse osmosis and nanofiltration markets, Dow has committed significant capital and other resources to upgrade and expand its manufacturing capabilities at FilmTec. New DOW FILMTECTM XLE elements offer better system performance and economics by operating at very low applied pressure. XLE membrane, made with technology, provides consistent and reliable system performance. Since oxidation damage is not covered under warranty, Dow Water & Process Solutions recommends removing residual free chlorine by pretreatment prior to membrane exposure. FilmTec™ Elements can operate over a pH range of 2 – 11, are resistant to compaction and are suitable for temperatures up to 45°C. DOW Filmtec Brackish Water 8 inch x 40 inch (8"x 40") Reverse Osmosis membrane elements Membrane model Speciality Flow GPD Flow Area m3/day (ft2) General Information Proper start-up of reverse osmosis water treatment systems is essential to prepare the membranes for operating service and to prevent membrane damage due to overfeeding or hydraulic shock. Compare performance, construction and reliability features of different FILMTEC membranes and choose the best option for your water treatment system. For successful operation of Reverse Osmosis (RO) and Nanofiltration (NF) membrane systems, the operation must follow the guidelines provided in the FilmTecTM Reverse Osmosis / Nanofiltration Elements Operation Excellence and Limiting Conditions Tech Fact (Form No. Find detailed information on FILMTEC reverse osmosis membrane elements for brackish water, seawater and nanofiltration applications. DOW FILMTECTM reverse osmosis (RO) membranes for home drinking water treatment units are some of the most reliable and consistent elements in the industry. FilmTec™ reverse osmosis membrane elements that are used in double-pass RO systems, which produce high-purity water in a continuous process; for applications with less stringent water-purity requirements, these elements can be used cost-effectively in single-pass RO systems as well. . Advanced membrane technology and automated fabrication allow Dow to precisely produce each and every element to tight, pre-defined specifications. General Information Proper start-up of reverse osmosis water treatment systems is essential to prepare the membranes for operating service and to prevent membrane damage due to overfeeding or hydraulic shock. Proper start-up of reverse osmosis water treatment systems is essential to prepare the membranes for operating service and to prevent membrane damage due to overfeeding or hydraulic shock. cuvc vqi tvrkwq wvhemq pmccbl iydge fuga bmjbo zhj whyuhs