According to foreign media reports, in some areas of the world where freshwater resources are scarce, seawater desalination technology plays a vital role in converting saltwater into freshwater, but they still have a lot of room for improvement. An opportunity to achieve this goal lies in the materials used in water filtration systems. For this, scientists have proposed to replace the currently used plastic film with a material based on wood, and early experiments show that this material has a higher Performance. It is reported that the current seawater desalination methods are very expensive, it requires a lot of energy, and the membrane used to filter water is mainly made of polymers, which require fossil fuels to produce and are difficult to recycle. Scientists from Princeton University and colleagues from the University of Maryland and the University of Colorado Boulder got inspiration from the natural water circulation system of trees when developing new wood films. Specifically, the thermal stability of trees and the ways in which their stomata allow water and nutrients to be transported during growth provide scientists with a useful blueprint. Jason Ren, a professor of environmental engineering at Princeton University, said in an interview that the hierarchical pore structure and natural insulation properties of trees inspired the idea of ​​using wood materials for water evaporation. " It is reported that the wood film created by the research team is only about 500 microns, and is about 180 microns thinner than the current commercial polymer. They called it "nano wood" and said that it has some extraordinary water filtration capabilities. Comparison with traditional films shows that the performance of this new type of film is better than 20%, and this is due to its extremely high porosity and good thermal insulation. Ren said that in order to continue to optimize the performance of this film, they are continuing to test different wood. Related research has been published in "Science Advances". Elevator Safety Gear,Elevator Safety Gear Types,Elevator Safety Equipment,Instantaneous Safety Gear For Elevator MAURER TECHNOLOGIES CO., LTD. , https://www.maurer-elevator.com
Wooden filter membrane can realize efficient and stable water desalination treatment