Interpretation of the principle of micro-nano bubbles

2022-03-09 10:49:28

Micro-nano bubbles are ultra-fine air bubbles present in water. The phenomenon of bubble formation can be encountered in many phenomena in nature. When the gas is subjected to cutting force in the liquid, it will form bubbles of different shapes and sizes. When the diameter of the bubbles is less than 50 microns, it is called micro-bubbles, and those less than 100 nanometers are called nano-bubbles. Micro-nano bubbles are between micro-bubbles and nano-bubbles, and have physical and chemical properties that conventional bubbles do not have.

Micro-nano bubble generation technology was produced in the late 1990s, and Japan has advanced development in the early 21st century. The manufacturing methods include cyclonic shear, pressure dissolution, electrochemistry, microporous pressure, mixed jet, etc. Micro-nano bubbles can be generated under certain conditions.

Common characteristics of micro-nano bubbles:

1. Surface charged

   

   

    2. Self-pressurized dissolution

    3. Slow ascent

    4. Large specific surface area