This bacterium is called "Bacillus stratosphericus" and it usually lives at an altitude of 20 miles (32 kilometers) above the ground. They were found in the river this time, probably because of the atmospheric circulation that brought them down. This atmospheric cycle causes water vapor to rise and fall again.
The special bacteria with strong vitality can be used in microbial fuel cells (MFC) to convert wastewater into electricity and clean water. Its ability to generate electricity is more than twice that of other bacterial species, so scientists at the University of Newcastle in the United Kingdom believe that this new energy source will be able to provide electricity for household appliances in developing countries.
In the environment of oxygen-free solution inside this special battery, these bacteria release carbon dioxide, protons and electrons. Free electrons then constitute the negative electrode, while protons constitute the positive electrode. This generates current.
Scientists have published relevant papers on this result in the Journal of Environmental Science and Technology sponsored by the American Chemical Society. Grant Burgess, a professor of marine biotechnology at Newcastle University, believes that this research shows "the potential power of this technology." He said: "What we do is carefully manipulate these microorganisms so that they can Build a biofilm that can produce electricity more efficiently. This is the first time a microorganism has been selected and studied in this way. It was discovered that this bacterium is purely accidental, but it shows the application of this technology in the future Prospects. You know, there are countless of these microorganisms that can be used to generate electricity! "
Professor Burgess said that the scientific team isolated 75 different types of bacteria in the Will River one by one and put them into the microbial fuel cell for testing to understand their power generation capacity. Once the best bacterial candidate is found, scientists can start building an artificial biofilm to double the power generation capacity of ordinary microbial fuel cells, from 105 watts per cubic meter to 200 watts per cubic meter
Although the efficiency of such power generation is still low, it is enough to light an electric lamp and bring the gospel to those regions of the world that are in desperate need and lack of electricity. The use of microorganisms to generate electricity is not a new concept. In addition, people also use them for wastewater and sewer treatment. Professor Burgess said: "This method is very interesting, we can actually collect electricity from bacteria that seem to be useless."
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