Developed by DuPont and commercialized by TriSep, a new fouling resistant RO membrane chemistry was created with the X-20. This new RO membrane, commercially known as the X-20TM, has a different barrier layer, which is classified as a fully aromatic polyamide-urea. This new barrier layer, which has residual amino groups on the surface, which are neutral at most operating pH's, has proven superior in critical areas of reverse osmosis operation including fouling resistant property. This property represents a major breakthrough in RO technology.

The X-20 has been so succesful, that many competitors have tried to imitate it. These imitations are typically standard '344 membranes with a surface coating. The X-20's low fouling characteristics come from it's unique and patented poly amide-urea chemistry. This property is built into the polymer backbone and cannot wash off. The surface coatings on competitive products lack the durability of the X-20.

In summary, the benefits seen in system performance when using the X-20TM spiral wound elements include: significantly lower organic fouling, consistent overall salt rejection of 99%+, consistently high silica rejection of 99%+, lower and consistent system delta-P, system maintainability, ease of cleaning and returning performance back to start-up conditions, system durability, and up to 2700+ cleaning hours with little loss in performance.

For your difficult RO applications, choose the leader and still the best, TriSep's X-20TM.