Technical characteristics of micro nano bubbles and application of oxygen enrichment

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Characteristics of micro nano bubbles

1. The rising speed of micro and nano bubbles is slow (retention). The rising speed of micro and nano bubbles in water is very slow. It takes tens of minutes for micro bubbles to burst. The nano bubbles can stay for hundreds of hours. The rising speed of 1 mm diameter bubbles in water is 6 m / min, while that of 10 mm diameter bubbles μ The rising velocity of the bubble is 3 mm / min, which is 1 / 2000 of the former.

2. Micro and nano bubbles have good self solubility, and the gas-liquid dissolution efficiency can reach 95-100%.

3. The specific surface area of micro nano bubbles is large, and the total surface area of bubbles is inversely proportional to the diameter of individual bubbles. According to the formula, the specific surface area of a 10 micron bubble is 100 times larger than that of a 1 mm bubble. The contact area of air and water is increased by 100 times, and the reaction speed is also increased by 100 times.

4. The surface of micro nano bubbles is charged, and the surface of bubbles is negatively charged. Bubbles can enhance the adsorption of micro particles in water, and with the shrinkage and dissolution of micro nano bubbles, surface charge concentration, ionization and hydrogen oxygen free radicals are generated.

5. The free radicals produced by micro and nano bubbles are oxidizable, because the micro and nano bubbles are in a strong high temperature and high pressure state when they burst, and a large number of free radicals can be generated when the bubbles burst, and the free radicals have strong oxidizability. Hydroxyl radical has a strong oxidation-reduction potential, which can degrade pollutants such as phenol, which are difficult to be oxidized and decomposed under normal conditions, which plays a good role in the purification of water quality.

6. the micro nano bubble has bactericidal property, and the bactericidal property of the nano bubble has a unique distinction from the conventional sterilization technology. The process of nano bubble sterilization includes two processes: adsorption and killing. Bubbles produced by gas-liquid two-phase fluid generate strong static electricity due to two phase friction. The charged bubbles can adsorb bacteria and viruses in the water. As the bubble shrinks, it is crushed and ruptured. A large number of free radicals are excited around the bubble and the ultra-high temperature and pressure generated by the rupture kill the adsorbed bacteria and viruses.

7. Micro and nano bubbles have strong stability. The retention of bubbles can make ozone gas and water achieve physical and chemical stability. The formed ozone micro and nano bubble water has disinfection, sterilization and oxidation properties.

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Application of micro nano bubble technology in aquaculture

1. The results show that the dissolved oxygen of water body can be greatly increased when the micro nano bubbles increase oxygen rapidly, which can reach the supersaturation state. At the same time, the chroma of water body can be removed, and the BOD, total phosphorus and ammonia nitrogen in water body can be reduced.

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2. Using microbubble technology can accelerate the degradation of particles in aquaculture water. Due to the charge on the surface of the microbubble has a good adhesion efficiency to the suspended matter, a large number of particles will form on the surface of the microbubble group. These particles from the bottom of the water deposit into the water suspension state, increasing the contact with oxygen in the water, thus speeding up the biodegradation of particles, to achieve water purification.

3. There are hundreds of millions of nano bubbles in micro nano bubble water. When the bubbles continue to self compress and rupture, they instantly generate high temperature and high pressure to form free radicals, which can sterilize, promote growth, significantly reduce fish diseases and reduce the dosage of drugs.

4. Micron bubble aerator can upgrade and transform the aquaculture industry, such as increasing oxygen in aquaculture, detoxifying and purifying high-density fish, shrimp and aquatic products, and improving the quality and taste of commercial fish.

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Application of micro nano bubbles in soilless culture

In the process of hydroponic plant production in modern ecological agriculture, the oxygen content in nutrient solution is an important factor affecting the growth and development speed of plants. The dissolved oxygen in water is sufficient, the plants grow fast and the dissolved oxygen degree is low, which is not only slow, but also below the critical value of dissolved oxygen required by plants, and there will be anoxic rotten roots, No matter how diverse the cultivation mode is, the ultimate goal is to guarantee the feasibility of the mode around the improvement of dissolved oxygen. All the technical measures that can improve the dissolved oxygen in water are the measures to increase plant growth and development.

In horticulture and dryland drip irrigation, however, the efficiency of traditional aeration method is relatively low, and it is difficult to make the dissolved oxygen value in irrigation water increase rapidly. Using micro nano bubble generator for aeration pretreatment of irrigation water can make the dissolved oxygen value quickly reach supersaturation state, and the micro nano bubble water can be used for irrigation. It can increase the oxygen content of plant roots, promote root growth, increase yield, and improve water and fertilizer use efficiency. Micro nano bubble water can not only provide sufficient oxygen, but also has special biological physiological activity due to its unique electrification, oxidation, sterilization, etc., which can promote the growth and development of plants.

Advantages of micro nano bubble generator

Integrated design of machine, electricity, water and gas, with built-in oxygen device, ozone unit, micro nano mixing and dissolving device, electronic control device and instrument. The whole machine is compact in structure and beautiful in appearance. It directly produces super saturated micro nano oxygen enriched water with disinfection without auxiliary equipment. The concentration and output can be set and adjusted according to different process requirements of different industries.

● The new technology of nano binuclear dissolution is adopted;

● High purity oxygen and ozone can be fully dissolved in water;

● Mobile, easy to combine with existing equipment and facilities;

● The time for the equipment to reach the state of saturated oxygen rich water is short (the dissolved oxygen value can be set to start and stop automatically), with high efficiency and energy saving;

● Strong structure, few components, easy disassembly, easy maintenance and corrosion resistance;

● Nano scale oxygen rich water is produced, and the particle size of nano bubbles can reach 10-100nm;

● The concentration of nano oxygen enriched water can be adjusted online;

● Corrosion resistant. The flow passage parts are made of SUS304 stainless steel / 316L stainless steel / PTEF;

● Industrial grade design is adopted to ensure 24-hour continuous operation, stable and reliable;

● Intelligent control, CPU integration, intelligent operation of main board, remote control or timing mode;