Nanofiltration separation technology is a unique membrane separation technology, which sits between ultrafiltration and RO reverse osmosis, but is more inclined to RO reverse osmosis. Nanofiltration membranes have a unique pore size structure that retains large molecular weight organics and multivalent ions, while allowing small molecule organics and monovalent ions to permeate. This technology can operate stably under harsh conditions such as high temperatures, acids, alkalis, etc., and has excellent resistance to contamination. In addition, nanofiltration plants operate at lower pressures, higher membrane fluxes, and relatively low unit operating costs, making them an efficient and economical method for water treatment.
The main function of nanofiltration equipment is to remove harmful ions in drinking water, including the following aspects:
1.Removal of heavy metal pollutants: Nanofiltration equipment can remove heavy metal pollutants such as cadmium, chromium (hexavalent), copper, lead, manganese, mercury, nickel and other heavy metal pollutants in drinking water quality standards. Most of these pollutants are caused by industrial waste spills and industrial wastewater discharges. Through the treatment of nanofiltration membranes, these contaminants can be effectively removed and the safety of drinking water can be ensured.
2.Nitrite and nitrate removal from water: With the progress of industrialization and urbanization, many municipal waterworks are facing increased nitrate and nitrite concentrations in their water resources. These substances are particularly harmful to infants and young children because they can cause hemoglobinemia deficicient. Through nanofiltration equipment, these harmful substances can be effectively removed and the safety of drinking water can be ensured.
3.Reducing fluoride in water: Water with too much fluoride can cause fluorosis in teeth and bones, which can affect human health. Nanofiltration equipment can effectively reduce the fluoride content in water and ensure the safety of drinking water.
4.Removal of arsenic from water: Arsenic is a recognized carcinogen, and long-term consumption of arsenic-containing water can lead to **cancer. Nanofiltration equipment can effectively remove arsenic from water and reduce the risk of cancer.
In general, nanofiltration equipment plays an important role in drinking water treatment, which can effectively remove various harmful ions and ensure the safety and health of drinking water.