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The aerator is a necessary equipment for high-density aquaculture ponds. Since its application in my country in the 1970s, it has greatly promoted the development of the pond aquaculture industry. The output of pond aquaculture has increased from 200kg/mu to 500kg/mu. There is also a great improvement. At the same time, with the development of aquaculture production, new models of aerators continue to appear, with a wide variety of technical indicators, which brings difficulties to the correct selection and use of aerators. Therefore, it is necessary to start from the aerators. Start with the mechanism of aeration, analyze the working principle, technical indicators and use methods of various types of aerators, and provide a scientific basis for the correct selection and use of aerators
When choosing, use aerators to note:
(1) The selection of aerators should be based on the characteristics of the above-mentioned various aerators and the breeding objects, and the correct selection according to the different conditions of ponds, industrialization and running water aquaculture.
(2) The load area of pond aerators per kilowatt of aerators, generally, the number of ponds with a large area of about two acres should be calculated.
(3) The running water tank is equipped with an aerator, which should be based on the breeding density, the power efficiency of the high-efficiency frequency conversion aerator, the oxygen content of the water source and the oxygen consumption of fish, and the biological
The water-lifting effect of the aerator makes the air-water interface continuously updated, and the oxygen-deficient water at the bottom is brought to the liquid surface to fully contact with the air, and the waves aroused by the water surface form a water curtain and wrap in the air, thereby expanding the contact between the air-liquid interface and the liquid surface. The higher the frequency, the better the oxygenation effect. Therefore, increasing the water extraction amount of the aerator can effectively increase the efficiency of the aerator, that is, the liquid level is updated and oxygenated
Therefore, the use of bottom microporous oxygenation has become more popular in current aquaculture, and it is also a trend with very good effects!