Reverse osmosis membrane is commonly used in water purification and water treatment with high requirements for the produced water due to its small filtration pore size and good filtration effect. It is one of the most common types of water treatment filter membranes.
What types of wastewater can reverse osmosis membrane treat?
Wastewater Generated by the Electroplating Industry
The wastewater generated by the electroplating industry generally contains large amounts of harmful heavy metal ions that are difficult to remove using conventional treatment methods, causing environmental pollution. However, reverse osmosis membrane technology can effectively remove heavy metal ions from electroplating wastewater, and the higher the ionic charge, the easier it is to remove. The separated heavy metals can be recycled, and the treated water that meets the standards can be discharged, resulting in good economic benefits.
Wastewater from Power Plants
The largest volume of wastewater generated in a thermal power plant is the discharge from the cooling tower. If the discharge from the cooling tower is directly discharged without treatment, it will result in a huge waste of water resources. Since the circulating water volume in the cooling tower is very large, if the discharge from the cooling tower is treated with reverse osmosis membrane technology and used for recycling water system, it can save resources and improve water utilization rate.
Wastewater from the pulp and paper industry
Wastewater generated by the pulp and paper industry during production has high concentration, high turbidity, high biochemical oxygen demand, and often contains harmful impurities, which has a great impact on the environment. Using reverse osmosis membrane technology to treat wastewater from the pulp and paper industry can effectively remove pollutants from wastewater and also extract useful substances for recycling.
Radioactive wastewater
The wastewater from nuclear power plants and thermal power plants both have the characteristic of large water volume, but because nuclear power plants obtain energy from radioactive nuclear fuel, their wastewater also has radioactivity. Since the effect of reverse osmosis membrane technology in treating wastewater is not related to the radioactivity of the metal salts in the wastewater, reverse osmosis membrane technology is very suitable for treating such wastewater. In addition, reverse osmosis membrane technology can significantly reduce the amount of wastewater discharged from the steam generator in the pressurized water reactor operation of a nuclear power plant.
