JXNF001
JX
JXNF001
Nanofiltration is a pressure-driven membrane separation process between reverse osmosis and ultrafiltration. The pore size of nanofiltration membranes is in the range of a few nanometers. It appears late compared to other pressure-driven membrane separation processes. Its appearance can be traced back to the research of J.E. Cadotte's NS-300 membrane in the late 1970s. After that, nanofiltration developed rapidly, and the membrane stacker was commercialized in the mid-1980s. Nanofiltration membranes are mostly derived from reverse osmosis membranes, such as CA, CTA membranes, aramid composite membranes and sulfonated polyethersulfone membranes.
Nanofiltration (NF) is used to separate substances with relatively small molecular weights, such as inorganic salts or small molecular organics such as glucose and sucrose, from solvents. Nanofiltration, also known as low-pressure reverse osmosis, is an emerging field of membrane separation technology. Its separation performance is between reverse osmosis and ultrafiltration, allowing some inorganic salts and some solvents to pass through the membrane to achieve separation. In nanofiltration, under the action of higher than osmotic pressure, water molecules and a small amount of dissolved salts pass through the selective semi-permeable membrane, while other dissolved and colloid, organic matter, bacteria, microorganisms and other impurities are discharged with concentrated water. It is suitable for desalination, softening and refining of biochemical products, special foods, dyes, etc. in various process water stations. UF(ultrafiltration), NF(nanofiltration), RO(reverse osmosis), models cover roll, flat, disc and other membrane elements, widely used in municipal sewage, electroplating wastewater, printing and dyeing wastewater, material separation, drug concentration and electrophoretic coating and other related fields. |
Nanofiltration is a pressure-driven membrane separation process between reverse osmosis and ultrafiltration. The pore size of nanofiltration membranes is in the range of a few nanometers. It appears late compared to other pressure-driven membrane separation processes. Its appearance can be traced back to the research of J.E. Cadotte's NS-300 membrane in the late 1970s. After that, nanofiltration developed rapidly, and the membrane stacker was commercialized in the mid-1980s. Nanofiltration membranes are mostly derived from reverse osmosis membranes, such as CA, CTA membranes, aramid composite membranes and sulfonated polyethersulfone membranes.
Nanofiltration (NF) is used to separate substances with relatively small molecular weights, such as inorganic salts or small molecular organics such as glucose and sucrose, from solvents. Nanofiltration, also known as low-pressure reverse osmosis, is an emerging field of membrane separation technology. Its separation performance is between reverse osmosis and ultrafiltration, allowing some inorganic salts and some solvents to pass through the membrane to achieve separation. In nanofiltration, under the action of higher than osmotic pressure, water molecules and a small amount of dissolved salts pass through the selective semi-permeable membrane, while other dissolved and colloid, organic matter, bacteria, microorganisms and other impurities are discharged with concentrated water. It is suitable for desalination, softening and refining of biochemical products, special foods, dyes, etc. in various process water stations. UF(ultrafiltration), NF(nanofiltration), RO(reverse osmosis), models cover roll, flat, disc and other membrane elements, widely used in municipal sewage, electroplating wastewater, printing and dyeing wastewater, material separation, drug concentration and electrophoretic coating and other related fields. |
