The application segment of the Nanofiltration Systems and Membranes market is the primary driver of demand, and the market taxonomy is reflected in the accompanying pie‑chart. Municipal water treatment leverages NF to remove hardness, color, and trace organics, representing the largest share at 30 % of total market value. Industrial wastewater treatment—covering textile, petrochemical, and metal finishing streams—accounts for 25 %, driven by strict discharge regulations. Food and beverage processing utilizes NF for concentration, de‑colorization, and sugar recovery, contributing 20 % of revenue. Pharmaceutical and biotechnology applications, which require high purity and selective separation of small molecules, generate 15 % of sales. Power generation and desalination employ NF as a pre‑treatment stage to protect reverse‑osmosis membranes, comprising the remaining 10 %. This Nanofiltration Systems and Membranes segmentation highlights how each end‑use sector allocates capital, influencing manufacturers’ product roadmaps and regional sales strategies.