Dow Filmtec SW30ULE-440i Seawater Membrane

Dow Water & Process Solutions offers various premium seawater reverse osmosis (RO) elements designed to reduce capital and operation cost of desalination systems. DOW FILMTEC• products combine premium membrane quality with automated precision fabrication which take system performance to unprecedented levels. DOW FILMTEC• SW30ULE-440i is an element of choice for low to medium salinity and temperature waters, for permeate staged systems for stringent water quality targets, and for high feed salinity brackish water applications. It has the highest sustainable flow rate available in the industry, coupled with high rejection of NaCl and boron. This performance can lead to significant capital and operation cost savings, especially when this element is mixed with other element types in the same pressure vessel, using the •internally staged design• approach. . In addition, the combination of highest active area and thickest feed spacer of the Dow FILMTEC membranes results in higher productivity and lower cleaning frequency enabling sustainable lower lifecycle cost. Benefits of the DOW FILMTEC SW30ULE-440i element include:

•The highest seawater element flow rate in the industry, coupled with high rejection,allowing ultra-low energy consumptions. This enables lowest capital and operation cost ina seawater system.

•The highest guaranteed active area of 440 ft2 (41 m2) permits lowest system cost bymaximizing productivity and enables accurate and predictable system design andoperating flux.

•The combination of highest active area with wide feed spacer (28 mil) allows low cleaningfrequency and high cleaning efficiency.

•Utilization of the distinct iLEC• interlocking endcaps that help reduce system operatingcosts and reduce the risk of o-ring leaks that cause poor water quality (See Form No. 609-00446 for information on cost-saving benefits)

•Sustainable high performance over the operating lifetime, because oxidative treatmentsare not used in membrane production. This is one reason DOW FILMTEC elements aremore durable and may be cleaned more effectively over a wider pH range (1-13) than mostother RO elements, which use oxidative treatments.

•Can effectively be used in permeate staged seawater desalination systems withoutimpairing the performance of the downstream stage.

•Automated, precision fabrication with a greater number of shorter membrane leavesreduces the effect of overall fouling and maximizes element efficiency, lowering cost ofoperation.