Aerator is a commonly used mechanical equipment in fish ponds. It plays an important role in improving the quality of water, saving fish floating heads, and improving fish production. In recent years, water aerators have been rapidly promoted and applied in aquaculture production. How should a farmer friend select aerators in accordance with the actual conditions such as the size of the aquaculture water body and the size of the water area, and increase the work efficiency? The specific methods are as follows: 1. The engineering principle of aerator The aerator is used to increase oxygen by increasing the contact area between the water and the air and infiltrating the oxygen in the air. Therefore, the aerator's oxygen increase effect is proportional to the degree of contact between water and air, and the dissolved oxygen in the water. The content is inversely proportional. 2. Type and selection The commonly used aerators in fishery production include water spray, water wheel and impeller. Water jet aerators are used to increase the oxygen by spraying water into the air and then scattering and falling. The waterwheel aerator is used to agitate the water on the surface of the water body to increase contact with the air. These two types of aerators have a good effect on increasing the dissolved oxygen content in the water and saving the floating head. At the same time, the aeration effect is also good. It can well disperse dissolved gases such as hydrogen sulfide and ammonia into the air. The impeller aerator is a new type of water aerator that has been promoted in pond fish production in recent years. The impeller-type aerator can increase the convection of the pool water, make the surface water enter the bottom layer, and the bottom layer water rises to the surface layer. After the surface water with higher oxygen content enters the bottom layer, it can effectively improve the dissolved oxygen status of the bottom layer of water and make the organic matter in the bottom sludge. Rapid mineralization and decomposition, so as to achieve the effect of improving water quality, is very beneficial to aquaculture and increasing production and income. Second, the correct use of fish aerator The rational use of aerators can effectively increase the amount of dissolved oxygen in the pool water. It has a good role in promoting the prevention, rescue of fish floating heads, prevention of flooding ponds, improvement of pond water quality conditions, increase of fish consumption, and increase of yield. The correct use of aerators for fishing is: 1. Correct installation It should be installed correctly according to the installation instructions. This is an important condition for ensuring correct use. 2. Pay attention to the oxygen increase time When using aerators to increase oxygen, fishponds must choose the appropriate oxygenation time according to the weather. That is, sunny days should be at noon, and cloudy days can be used to turn on oxygen in the early morning; during rainy seasons, the oxygen should be turned on in the middle of the night; the boot time in the middle of the night should be long, and the boot time at noon can be slightly shorter; when fertilizing, weather is hot, and the water surface is large The boot time should be long; no fertilization, cool weather, the water is small, the boot time can be slightly shorter. It is worth noting that if the high-oxygen oxygen water is sent to the bottom layer in the evening, the oxygen will be naturally consumed, and the surface layer of dissolved oxygen will not be able to be supplemented and increased. As a result, the entire pond will suffer from lack of oxygen and can easily cause fish. Floating heads, in severe cases, pan-pools and even dead fish can occur in large areas, causing great losses to aquaculture production. Rotary Cultivator For Small Sized Gearbox Rotary Cultivator,Tiller Cultivator Rotary,Rotary Cultivator For Small Sized Gearbox,Tractor Drived Rotary Tiller Shandong Dahua Machinery Co.,Ltd , https://www.agrodahua.com
First, the characteristics and types of fishing aerator