How to select appropriate Roots blower aerator for aeration in aquaculture?

How to select appropriate Roots blower aerator for aeration in aquaculture? In addition to the above weather, water temperature, water quality, etc., the scientific use of aerators by most demonstration households should also consider the specific conditions of breeding ponds and breeding varieties, and flexibly master the law of starting according to dissolved oxygen in the pool water. The method and startup time are used to realize reasonable and scientific use of oxygen increasing equipment, increase output and improve efficiency.

1. In the process of perennial breeding, if the fish, shrimp and crab are in the state of floating head hypoxia, all emergency devices of the aeration equipment should be turned on immediately, and the dissolved oxygen in the water should be increased. At this time, it should be a "lifesaving machine".

2. In the vigorous growth season of fish, shrimp, crab, etc., open the aerator for 1-3 hours at noon on a sunny day, give full play to the stirring effect of the aerator, promote the convection body of the upper and lower water, and increase the dissolved oxygen in the pool water. It also accelerates the material circulation of the pond, improves the water quality and reduces the occurrence of floating heads at night.

3. In rainy days, phytoplankton photosynthesis is weak, oxygen production is low, and dissolved oxygen in the pond is insufficient, which is easy to cause floating heads. At night, the aeration equipment should be turned on to prevent oxygen deficiency.

4. When a large amount of fertilizer is used and the water quality is too fat, the combination of noon and morning in sunny days must be used to improve the dissolved oxygen condition of the pool water and prevent floating head. After using pesticides, disinfectants or microbial agents in the pond, open the aeration equipment for 1~2 hours, and evenly apply drugs to improve the use effect. Meanwhile, open the aeration equipment at night within 3 days to prevent "water transfer". Oxygen deficiency.

5. It doesn't start at noon in sunny evenings and rainy days. If you turn on the machine, it will increase the oxygen consumption layer of the pond, accelerate the oxygen consumption rate of the lower layer, and easily cause hypoxia of fish, shrimp, crabs and other farmed animals.

6. If possible, the pond mouth can be equipped with oxygen measuring instruments. Stop feeding as long as the dissolved oxygen is lower than 3mg/L. Dissolved oxygen in fish pond is less than 2.0mg/L, and that in shrimp pond is less than 2.5mg/ 50. When the dissolved oxygen in crab pond is less than 3.0mg/L, the aeration device will be turned on.