Remember the matter of activated carbon sources
In ancient times, there were good works, and he was determined to find the way of activated carbon sources. He walked in mountains, forests and rivers, and observed the nature of all things, hoping to obtain a wonderful method of carbon sources.

At the beginning, he traveled all over the place, saw dead trees and leaves, and thought about the carbon source that could be melted? Then he took it, burned it with fire, and soaked it in water, but the result was not good, the quality was not pure, and the effect was not obvious.

Re-explored in the ore fields, obtained stones, tried the art of calcination, and added various medicinal inductions. Although there is carbon, there are still many impurities, which did not meet his requirements.

Later, I heard that there is a law in foreign lands, and I traveled far and wide Looking at the materials used, there are the cores of forest fruits and the shells of millet. They are made by secret methods to obtain a good carbon source.

Go back and imitate them, take the cores of local forest fruits, and make them according to the method you have learned. First purify the things, and then go to the kiln to bake them. The heat is carefully adjusted, and the length of time is fixed. Then quench them with medicine and bake them again. Finally, the activated carbon source is obtained, which is pure and effective, and can be used.

The good work was then spread to the public with the method obtained, and everyone imitated it. The production of activated carbon sources is gradually becoming popular.