Table 11.

Nanofiltration membranes and their characteristics

Manufacturer	Type	Pore size/MWCOa (Da)	Polymer	pH	Flux (GFD/psi)
Dow Filmtec™	NF270	~ 200–400	Polyamide-TFC	2–11	72–98/130
GE Osmonics™	DL	~ 150–300	Polyamide-TFC	2–10	28/220
Synder™	NFX	~ 150–300	Polyamide-TFC	3–10.5	20–25/110
Synder™	NFW	~ 300–500	Polyamide-TFC	4–10	45–50/110
TriSep™	TS40	~ 200	Polypiperazine-amide-TFC	2–11	20/110

^aMWCO molecular weight cut-off