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The Fluid Systems Roga line of cellulose acetate membranes from Koch Membrane Systems treat industrial and municipal wastewater where greater fouling resistance is key. The Roga membrane is a spiral-wound membrane with a combination of smooth surface morphology, neutral charge and chlorine tolerance. The cellulose acetate ultrafiltration element uses a very low pressure membrane, designed to be well-suited to natural organic and color removal applications. Roga high rejection reverse osmosis elements are useful for desalinating feed sources that have high biofouling potential. According to the company, they deliver a 98% chloride rejection rate at medium pressure and can tolerate low-level, continuous chlorine additions.
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