We help customers make significant advancements by continuously innovating in the water filtration and purification technologies that form the core of DuPont Water Solutions.

FILMTEC™ reverse osmosis (RO) elements installed in the municipal water treatment plant on Sanibel Island, FL (US)

Reverse Osmosis (RO)

RO is a pressure-driven separation process that reduces the smallest of solute particles and treats most ions and large molecules in the water. 

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FILMTEC™ nanofiltration (NF) membrane elements installed in an industrial facility

Nanofiltration (NF)

NF is a pressure-driven separation process positioned between reverse osmosis and ultrafiltration used to treat color and pesticides, and to partially soften the water.

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Closeup of water droplets at the end of white ultrafiltration fibers against a background of deep blue water

Ultrafiltration (UF)

UF uses a membrane barrier to exclude colloids, bacteria, and more; for pretreatment in demineralization, industrial water production, drinking water production, or wastewater reuse.

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Blue-green industrial ion exchange resin vessels

Ion Exchange (IX)

IX uses polymeric resins capable of exchanging ions; applications include softening, bulk demineralization, trace contaminants removal, and condensate water polishing.

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Installed blue-and-white DuPont Water Solutions electrodeionization (EDI) skid

Electrodeionization (EDI)

EDI is used as a polisher for boiler and ultrapure water makeup and can deliver the lowest conductivities, sodium, and silica in the product without chemical regeneration.

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