my country’s nanofiltration membrane industry has broad development prospects and local companies have large room for improvement

Nanofiltration is an emerging green water treatment technology separated from reverse osmosis technology. It can pass 90% of sodium chloride and intercept 99% of sucrose. Nanofiltration membrane is a functional semipermeable membrane that allows solvent molecules, low-valent ions, and certain low-molecular-weight solutes to pass through. The minimum pore size range can reach about one nanometer.…