The impeller type aerator has the function of emergency oxygenation, which is the fastest oxygenation rate among mechanical aerators, which can rapidly increase the dissolved oxygen in the surrounding water and form a relative oxygen-enriched area around the aerator. This is also one of the reasons why the impeller type aerator can effectively prevent fish from floating. The following are some precautions when using an impeller aerator.

I am used to "raising big fish in deep water". The water depth of fish ponds is generally about 2.0 meters. In ponds with a water depth of more than 2 meters, a mechanical aerator is used. Only the impeller type aerator can make oxygen deep into the bottom of the pool. Generally, it is appropriate to configure a 3-kilowatt aerator per 5-6 mu of water surface.

The dissolved oxygen in the pond mainly comes from the photosynthesis of phytoplankton in the water and the integration of air, and the amount of dissolved oxygen in the water is related to the weather, water temperature and air pressure. The best oxygen-enhancing effect can be achieved under the condition of reducing the start-up cost. In different seasons, the rational use of aerators should grasp the following principles:

Summer hot season:

Open in the afternoon on a sunny day (11:00-16:00)

The oxygenation of aquaculture water mainly depends on photosynthesis. The afternoon is the most abundant period of sunlight in the day, and it is also the most active period of photosynthesis of phytoplankton in the water. Since the deepest photosynthesis in the water body can only reach twice the transparent depth of the water body, when the dissolved oxygen on the surface of the fish pond reaches supersaturation, the water bodies in the middle and bottom layers are still in a state of lack of oxygen. Stirring and aeration functions bring the supersaturated oxygen-dissolved water body in the upper layer to the middle and bottom layers, and bring the oxygen-deficient water body in the middle and bottom layers to the upper layer for photosynthesis. To the water surface, the overall dissolved oxygen level of the fish pond water body is improved, and the harmful substances in the water body are reduced.

Turn on in the early morning (23:00-5:00)

In the early morning, the dissolved oxygen in the water in the pond is the lowest time of the day, especially in high-density fish ponds. The aerator can form a relative oxygen-enriched area around the aerator to prevent the occurrence of floating head and pond overturning accidents.

On rainy days:

Due to the poor photosynthesis capacity of the water body in the fish pond, the oxygenation of the aerator is mainly used to maintain the dissolved oxygen in the water body of the fish pond. : 00, 00: 00-5: 00 and other times to start the machine, according to the temperature of the water body to control the start-up time, if the water body temperature is high, the start-up time should be increased.

Rainy season:

During the rainy season, floating heads and overturning ponds are most likely to occur. Due to the low air pressure, it is difficult for the oxygen in the air to dissolve into the water body. At this time, the oxygenation efficiency of the aerator is also the lowest. .