Nanofiltration (NF) Reference for NF process design and diagnostics — what distinguishes NF from RO/UF, where it earns its place, and how to operate it. Convention markers: - — likely bug or incorrect assumption in calling code - — enhancement opportunity (NF-specific monitoring, selectivity tracking) --- §1 — NF Positioning vs RO and UF | Parameter | UF | NF | RO | |---|---|---|---| | Effective pore size | 10–100 nm | 0.5–2 nm | < 0.5 nm (dense, solution-diffusion) | | MWCO | 10–1 000 kDa | 150–2 000 Da (NF90 200; NF270 200–400; Suez D-series 150–300) | < 100 Da | | Operating pressure | 1–3…