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Dow FILMTEC? The industrial-grade BW30-400IG brackish water desalination reverse osmosis membrane element is applied in the field of industrial water treatment. It maintains the same flow rate and desalination performance as the BW30-400 membrane element, thus providing a more cost-effective option for industrial-grade applications. Dow BW30-400 IG is one of the 8040 series membrane elements newly launched by Dow FILMTEC to the market. It is an original ro membrane from Dow in the United States, used to meet the water quality requirements of commercial customers' systems. This membrane features anti-pollution, high desalination and high water production.
The reverse osmosis (RO) membrane is the core component of the reverse osmosis pure water production system. During normal operation, the contamination level of the reverse osmosis RO membrane will only become more severe. Therefore, membrane cleaning is essential. Now let's talk about the causes of reverse osmosis (RO) membrane contamination and the physical and chemical cleaning methods. I. Classification and Causes of Reverse Osmosis (RO) Membrane Fouling 1. Classification by fouling Location. According to the location of contamination, membrane fouling can be classified into membrane adhesion layer fouling, membrane pore blockage and membrane flow channel blockage. In the adherent layer, it was found that there were filter cake layers formed by suspended solids, colloidal substances and microorganisms, gel layers adhered after the concentration of dissolved organic matter, and scale layers formed by dissolved inorganic substances. However, the pollutants adhering to the membrane surface in a specific reactor vary with different experimental conditions and water quality. Membrane pore blockage occurs when pollutants adhere within the porous structure of the membrane
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