Aerator Supplier: Introduction to the Startup Timing and Recommendations for Pond Aeration Systems


Release time:

2021-12-14

Using an aeration machine in fish ponds is a technical measure to increase dissolved oxygen levels in the water and prevent fish from floating with their heads up. To enhance the effectiveness of aeration machines, the following points are recommended:

  Aerator supplier: Adopted Fish pond aerator This is a technical measure used in fish ponds to increase dissolved oxygen in the water and prevent fish from floating with their heads up. To enhance the effectiveness of aerators, the following points are introduced:

  1. If a small number of fish floats appear in the fishpond, you should start the aerator around midnight, before the fish begin to float, and run it continuously until sunrise.

  2. Light rain will begin between 3:00 and 5:00 a.m. and continue for three days, lasting until sunrise in the east. For fish ponds with abundant water, fertilizer, and fish, the aeration system should be started slightly earlier as needed.

  3. During the high-temperature season, to break up the warm water layer, it’s generally advisable to start the system around 2 p.m., with an operating duration of 1.5 to 2.5 hours being ideal.

  Enhanced oxygenation capability

  Aerator supplier: The primary performance indicators of pond aerators are oxygen-boosting capacity and power efficiency. Oxygen-boosting capacity refers to the amount of oxygen a single aerator can introduce into the water per hour, measured in kilograms per hour; power efficiency refers to the amount of oxygen produced per kilowatt-hour of electricity consumed by an aerator, measured in kilograms per kilowatt-hour. For example, a 1.5-kilowatt paddle-wheel aerator can achieve a power efficiency of up to 1.7 kilograms per kilowatt-hour, meaning that for every kilowatt-hour of electricity consumed, this device can add 1.7 kilograms of oxygen to the water.

  Aerator Supplier: Recommendations for Equipping Fish Ponds with Aeration Systems in Fish Farms

  Water source conditions, stocking density, and total energy consumption for water intake and discharge are the primary factors influencing the configuration of aeration equipment in fish ponds.

  1. Water Source Conditions: Is the water source abundant, and is the water quality consistently excellent? If the water quality is good, you can consider using fewer fittings; conversely, if the water quality is poor, you’ll have to use more fittings.

  2. Stocking density (yield per mu): Higher density means higher yield, lower density means lower yield.

  3. Total energy consumption for water intake and discharge: If the energy consumption for water intake and discharge is relatively low, consider using fewer aerators; if the energy consumption is high, opt for a larger configuration.

  4. Economic Analysis: Compare electricity costs with shrimp prices. If local electricity costs are relatively high while shrimp prices are relatively low, consider reducing the allocation; conversely, if electricity costs are relatively low while shrimp prices are relatively high, consider increasing the allocation.


Related News

The relationship between water convection and dissolved oxygen levels in aquatic bodies: The introduction of an aeration device can effectively regulate dissolved oxygen levels.

Although fish floating to the surface can be caused by a variety of factors, in addition to excessive stocking density, overloading the total fish biomass, and poor water quality, the convective properties of water are also a major factor that cannot be overlooked. Simply put, when water temperature is low, its specific gravity (or density) increases, causing it to sink; conversely, when water temperature is high, its specific gravity (or density) decreases, making it float upward. Understanding and mastering the principles of water convection will greatly facilitate the smooth operation of aquaculture. On warm days, after being heated by the sun during the day, the warmer, lighter water tends to stay on top. As the sun sets and the air temperature begins to drop, the upper layer of water cools down, increasing its density, and gradually starts to sink. If the nighttime temperature remains relatively high, the water cools down slowly, and the upper layer won't reach the bottom of the pond until early morning. This is one of the main reasons why oxygen levels tend to drop sharply from late night into early morning on hot days. However, if a heavy rainstorm occurs in the evening, the situation changes dramatically. The cold, heavy rainwater quickly sinks to the bottom of the pond, stirring up sediment, leftover feed, fecal waste, biological residues, and other organic matter from the pond bottom and bringing them into the middle and upper layers of the water. These harmful organic substances rapidly deplete the dissolved oxygen in the water. Before dawn even breaks, the dissolved oxygen in the water may be completely used up, leaving the fish vulnerable to oxygen depletion and causing them to float to the surface—a phenomenon known as "floating and surfacing." Therefore, sudden heavy rainfall in the evening or at night can also lead to oxygen depletion and fish floating to the surface.

2020-11-12