With the continuous development of human beings, water pollution has become a global problem. The per capita drinking water resources around the world are getting lower and lower. It is not necessary to filter the polluted water to a drinkable level. A simple project requires the cooperation of a variety of filtration equipment. It is difficult to popularize filtration equipment in economically underdeveloped areas. How to quickly and simply filter sewage has become the research direction of scientific researchers.
Scientists from the Australian Commonwealth Scientific and Industrial Organization (CSIRO) have developed an innovative graphene filter membrane that can simply and quickly filter sewage to the point where it can be directly drank, which is expected to alleviate the global problem of water pollution. drinking water problems in the region. The development team said that the water filtration membrane they developed is based on a graphene structure called Graphair, and they directly filter water samples collected from Sydney Harbor to the point where they are drinkable.
There are countless extremely small nano-channels inside the Graphair graphene filter membrane, which can block various impurity particles and allow water molecules to pass through the channels. It only takes one step to filter the sewage clean, which is much more efficient than traditional ones. The layered water filtration method is simpler and faster. In addition, Graphair filter membrane is simple to make and low-cost, making it suitable for large-scale promotion.
Dr. Dong Han Seo
Researchers used Graphair filter membrane to make a commercial water filter. The water filtration effect they tested showed that it can filter out more than 99% of pollution particles and last longer than regular membrane filters. The team expects to start field performance testing next year and look for partners.
