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Industrial processes for chemical separation, including natural gas purification and the production of oxygen and nitrogen for medical or industrial uses, are responsible for about 15 percent of energy use worldwide. Researchers at MIT and Stanford developed a membrane to carry out separation processes with roughly 1/10 the energy use and emissions.
Industrial processes for chemical separations, including natural gas purification and the production of oxygen and nitrogen for medical or industrial
By Tim Wogan2021-04-15T18:02:00+01:00 Selectively trapping toxic or useful ions could reduce toxicity of brine waste and offset costs A new type of purification membrane that could simultaneously produce fresh water for drinking or agriculture and absorb specific contaminants from the brine left behind has been demonstrated by researchers in the US. The team believes the technology could potentially help to extract potable water from difficult sources without complex, multi-step processes, as well as extracting valuable minerals from water. Show Fullscreen 372, 296 As water flows through th...
Posted Today Wearing a face mask can protect yourself and others from Covid-19, but the type of material and how many fabric layers used can significantly affect exposure risk, finds a study from the Georgia Institute of Technology. The study measured the filtration efficiency of submicron particles passing through a variety of different materials. For comparison, a human hair is about 50 microns in diameter while 1 millimetre is 1,000 microns in size. “A submicron particle can stay in the air for hours and days, depending on the ventilation, so if you have a room that is not ventilated or ...
Properly fitted multilayer masks block 84 per cent of particles expelled by a person wearing it, while two people donning these types of masks can reduce transmission by close to 96 per cent, according to a new study. While wearing a face mask can protect people from COVID-19, scientists, including those from Georgia Institute of Technology in the US, said the type of material, tightness of fit, and the number of fabric layers used can significantly affect exposure risk to the novel coronavirus. The study, published in the journal Aerosol Science and Technology, measured the filtration eff...