Bowl Mill,Diamond Bowl Grinding,Diamond Grinding Stone,Diamond Grinding Tool Hengshi Diamond Tools CO.,LTD , https://www.ryomaltools.com
Today's coal, oil and natural gas are the main energy sources in human life today. With the development of human society and the improvement of living standards, the amount of energy that needs to be consumed is increasing. However, the energy materials of these nature gifts have gradually accumulated through the changes of the earth's crust for thousands of years. Although the number is large, it is limited. Therefore, people will eventually face a day of energy crisis.
Of course, people can get energy in many ways. For example, solar energy is a huge energy source. In addition, geothermal, hydrodynamic, and nuclear fission can release a lot of heat. Experimental studies have shown that the use of microbial power generation to show people a bright future.
There are many types of batteries, and fuel cells are a rising star in this family. Generally, the battery is composed of a positive electrode, a negative electrode, and an electrolyte. The fuel cell is also like this: the fuel reacts chemically at one end of the negative electrode to lose electrons; the oxidant reacts at one end of the positive electrode to obtain electrons that run from the negative electrode through the wire. As with ordinary batteries, current flows through the wires.
The fuel cell can use hydrogen, hydrazine, methanol, formaldehyde, methane, ethane, etc. as fuel, and oxygen, air, hydrogen peroxide and the like as oxidants. Now we can use the so-called "electrode active material" produced by the life activities of microorganisms as a battery fuel, and then convert the chemical energy into electric energy into a microbial battery by means similar to a fuel cell.
As an electrode active material of a microbial cell, mainly hydrogen, formic acid, ammonia, and the like. For example, many bacteria that can produce hydrogen have been discovered, among which there are more than 30 kinds of heterotrophic bacteria, which can ferment organic substances such as sugars, alcohols, organic acids, and absorb chemical energy to satisfy their own lives. The need for activity, while releasing another part of the energy in the form of hydrogen. With this hydrogen as a fuel, a hydrogen-oxygen type microbial battery can be produced.
What about the urine discharged by astronauts in a closed spaceship? NASA has devised an ingenious solution to treat urine with Bacillus in the microorganisms, produce ammonia, and use ammonia as an electrode active material to obtain a microbial cell, which treats both urine and electrical energy. Generally, under aerospace conditions, 22 grams of urine per person per day can be obtained, and 47 watts of electricity can be obtained. By the same token, microorganisms can also obtain nutrients and energy from the organic matter of wastewater, and produce the fuel required for the battery.
Although the microbial battery is still at the stage of experimental research, it indicates that in the near future, it will provide more energy to humans.
What is a microbial battery?