In order to protect sensitive membrane and reverse osmosis equipment, feed water is first filtered through a pretreatment system. This pretreatment filtration system is designed to filter small suspended particles, insoluble salts and scale, reducing the potential for membrane fouling. A pretreatment system is crucial to maintaining the efficiencies of your membrane and reverse osmosis equipment. Quality membrane feed water will help you achieve more with your membrane water treatment system, while reducing your maintenance and operating costs!
Hard water contains dissolved compounds
of calcium, magnesium and other elements. Over time these elements
deposit on the membrane and form a hardened layer referred to as
scale. The layer of scale grows in thickness, reducing membrane efficiencies and membrane life. Membrane degradation can become a big concern and contribute to excessive maintenance and operational costs.
Fouling is a general term referring to
the deposit and accumulation of scale, algae, suspended solids and
insoluble salts on a surface. Such suspended particles, approximately 5 microns in size, are more likely to clog your membrane system, leading to fouling. Like scale, fouling will also cause rapid declines
in efficiency levels and membrane life-cycle.
Due to its capabilities in eliminating various pathogenic microorganisms, chlorine has become an essential component in municipal, industrial and wastewater treatment plants. However when it comes to RO systems, membranes can be easily damaged by chlorine in the feed water. Chlorine damage can lead to rapid membrane degradation and reduced efficiencies, resulting in costly membrane replacement and increased down-time costs.