This is the beginning of the story

　　Hundreds of millions of years ago, there was such a single-cell plant, which was often connected into various groups by several or many cell individuals. Their forms are diverse. They are diatoms. Diatom is a kind of single celled algae that first appeared on the earth. It lives in seawater or lake water. It is very small and often grows and reproduces at an amazing speed.

　　After hundreds of millions of years, diatoms and other plankton have deposited into diatom mud at the bottom of the water.

　　In the new century, people use electron microscope to observe diatom mud. It is found that diatom mineral is a kind of porous material with micron pore size. Its particle surface has countless tiny pores, which are regularly and neatly arranged in circular and needle shapes. The number of micro pores per unit area is thousands of times more than that of charcoal. This molecular sieve structure makes it have strong physical adsorption and ion exchange properties. After finishing, it is widely used in many fields, such as alcohol and medical injection filtration, water purifier, food additives, nuclear radiation adsorbent and so on; It can also slowly and continuously release negative oxygen ions and decompose harmful carcinogens such as formaldehyde, benzene and radon.

　　This is the story of diatom mud & mdash; Mud story.

　　Our story continues