Technical communication

Why does the protein skimmer have to be blue Spirit

We know that a protein separator is essentially an air floatation machine. Its basic principle is through the input of a large number of tiny bubbles into the water, through the surface tension of small bubbles has the characteristics of adsorption, adsorption of suspended matter in the water. Then using the bubble density is smaller than water, to rise to the surface of the water characteristics, so that the adsorbed suspended matter aggregates into foam-like material. In a certain way, the foam above the water is skimmed off. To achieve the removal of small particles of organic matter in the water. The best pellets it handles are 5-60 microns in diameter. So it is a "diamond partner" with microfilter and other coarse filtering equipment.

Protein separators were originally invented by some saltwater enthusiasts. The original protein separator was aerated in a container by a number of aerators to create air bubbles. But the disadvantage of this is that the diameter of the bubble is extremely large. The adsorption ability of bubbles to organic suspended matter in water is very weak and the effect is not good. Later, people improved and found that. Venturis are better at creating small bubbles. The venturi is a special kind of pipe. It has been used in foreign countries for more than 200 years. He uses the property of water pressure, which creates negative pressure as it passes through narrow pipes, to mix gas and liquid to create small bubbles. Therefore, this method has been widely used. Because the bubble diameter produced by the Venturi jet is small, the total air intake is large. So it was quickly accepted by most people. This is how most protein separators make bubbles today. However, it also has a disadvantage. In the jet pipe, there is a section of pipe with a very small inner diameter. This creates considerable resistance to the flow of water. Therefore, it requires that the pump supporting it should have a relatively high head. This down, disguised to improve the energy consumption of the pump. Therefore, it is still not an ideal water treatment equipment to use Venturi jet as a protein separator for bubble making device.

Guangzhou Lanling Aquatic Science and Technology Co., Ltd. has carried out a comprehensive technical research on recycling water factory aquaculture in China since 2011. A lot of experiments have been done to solve the disadvantages of protein separators, such as high energy consumption, poor air floatation and narrow adaptability to salinity. In the next few years. Through a large number of experiments, we have verified the good effect of the ultramicro bubble generator. We have replaced the traditional Venturi jet technique with the ultramicro bubble generation technique. The separation effect of the protein separator on organic suspended matter in water and the oxygenation effect on water were greatly improved.

Venturi jets mix gas and liquid to create bubbles that are typically between 1 and 3 millimeters in diameter. After several years of practice, innovation and research and development, Guangzhou Lanling Aquatic Technology Co., Ltd. found that the ultramicro bubble generator can reduce the diameter of bubbles produced by gas and liquid mixing to between 0.2 and 1 mm. The smaller the bubble, the stronger the adsorption capacity of the solid suspended matter in the water. The better the air floats. At the same time, when the same volume of gas is mixed with water, the smaller the bubble diameter, the total number of bubbles will increase exponentially. The dissolving effect of the gas also increases exponentially. But this does not mean that the smaller the bubble diameter, the stronger the separation ability of the protein separator for the solid suspended matter in the water. It is found that when the diameter of the bubble is less than 0.2 mm, the overall carrying capacity of the bubble to the solid suspended matter in the water becomes weaker. Because when the bubble diameter is less than 0.2 mm, its retention time in water is greatly increased. The buoyancy becomes smaller, and the carrying capacity of solid suspended matter becomes weaker. This will only increase the total area of contact between the gas and the liquid, improving the effect of oxygen or ozone mixing with water.

Another concern with protein separators is cost. Previous protein separators had a large transparent collection cup attached to the top. It is used to collect solid suspended matter, that is, dirt in the form of foam, which has been separated from the water by the floatation principle over a certain period of time. But this collection cup is actually a chicken rib. Guangzhou Lanling Aquatic Technology Co., Ltd. will improve the innovation, cancel the ugly collection cup (dirt and foam in the upper part of the meaning of staying? Just to be gross?) , retaining part of the transparent pipeline. You can still see the air float separation effect of the equipment. Intelligent timing backwashing device is added. The bubble can be burst every few minutes by spraying a small amount of misty water into a slanted tube through a timing device. The organic suspended matter separated by air floatation flows out from the inclined pipe and enters the sewage collection mouth. No human operation is required. Therefore, labor costs can be greatly saved. The amount of water used for automatic cleaning is negligible.

The main function of the protein separator is two, one is to separate the solid suspended solids from the water. The other is that in the process of bubble making, small bubbles contact with water, and the total contact area is greatly increased. The dissolution efficiency of gas and water is also greatly increased. Normally, the gas into the protein separator is air. In some cases, a fraction of oxygen may be added to the air to improve the dissolved oxygen in the water. In sewage treatment, aquaculture and other industries, we can use the protein separator at the same time, so that the protein separator inhaled a certain amount of ozone, ozone through the ultramicro bubble generation device, to produce a large number of diameter in 1 mm below 0.2 mm above the ultramicro bubble. As the contact area between ozone and water increases geometrically, the dissolution efficiency of ozone also increases geometrically. Ozone has strong oxidizing properties. It can not only quickly kill bacteria, viruses, algae and other microorganisms in the water, but also quickly oxidize ammonia nitrogen and nitrite dissolved in the water into non-toxic nitrate for fish and shrimp. Therefore, it can be said that the protein separator is a multifunctional water filter when used with ozone.

The protein separator produced by Guangzhou Lanling Aquatic Technology Co., Ltd. not only uses advanced ultramicro bubble generation technology. The treated water has also been studied in detail. For example, when a protein separator made of the principle of Venturi jet is used to treat seawater, if the salinity of seawater is below the critical value, the effect of the protein separator will immediately become very poor. This is the conclusion of a large number of experimental data. Most of the factories, however, just produce the device, while using outdated so-called "German technology" and other gimmicks to hype marketing. Its application condition and separation effect have never been studied carefully.

When protein separator and ozone generator are used together, the effect will be greater than two. However, the ozone machine also has a fatal flaw. Because it uses the principle of high voltage discharge to produce ozone. The "water hammer effect" may occur during the use of protein separator. That is, when the equipment is suddenly shut down, there will be some water in the container back to the high-pressure discharge tube of the ozone generator. Cause the ozone generator to start up again instant damage. At present, basically no manufacturer pays attention to such sharp problems of customers. Guangzhou Lanling Aquatic Technology Co., Ltd. in line with the attitude of being responsible for customers, in this respect has accumulated quite a lot of practical production experience. We've added an anti-reflux flask to the protein separation. The ozone generator is easy to solve the problem of damage.

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