DOW FILMTEC™ nanofiltration membranes have a pore size in the order of nanometers (10 angstroms). Dow offers a portfolio of nanofiltration membranes that can remove organics with molecular weights greater than 200 (e.g., Total Organic Carbon (TOC) and disinfection by-products) while allowing varying amounts of salt and hardness passage. These NF elements can remove organics like atrazine while still allowing for a minimum level of hardness passage for organolepic properties and the preservation of distribution networks.

Related Products

Products Nominal Active Surface Area
ft2 (m2)
Stabilized Salt Rejection
(%)
Minimum Salt Rejection
(%)
DOW FILMTEC NF90-400 400 (37.2) > 97.0
DOW FILMTEC NF90-4040 82 (7.6) > 97.0
DOW FILMTEC NF90-2540 28 (2.6) > 97.0
DOW FILMTEC NF270-400 400 (37.2) > 97.0
DOW FILMTEC NF270-4040 82 (7.6) > 97.0
DOW FILMTEC NF270-2540 28 (2.6) > 97.0