aquaculture air blower

Air compressor for aquacultureย play an important role in the aquaculture industry, involving oxygenation, mixing, water quality regulation, cleaning and dust removal, and fry transportation, providing the necessary compressed air and power support for the aquaculture.

Applications of Air Compressors in ย Aquaculture.

air compressor for aquaculture

Applications of air compressor for aquaculture

Oxygenation:

In aquaculture, aquatic animals such as fish and shrimp need sufficient oxygen to maintain life activities.

Air compressor for aquaculture are usually used to drive bubble oxygenation systems, which increase the dissolved oxygen content in the water by injecting bubbles into the water, improve the oxygen status of the water, and increase the oxygen concentration in the aquaculture water, thereby promoting the growth and development of aquaculture species.

Mixing and stirring:

The water in the aquaculture pond or tank needs to be mixed and stirred regularly to maintain the uniform distribution of temperature, salinity, dissolved oxygen and nutrients in the water.

Air compressor for aquaculture can be used to drive pneumatic mixing equipment, such as pneumatic agitators or pneumatic mixing pumps, to achieve mixing and stirring of water.

Water quality regulation:

Water quality needs to be monitored and regulated to keep the pH value, temperature, dissolved oxygen, ammonia nitrogen and other indicators of the water body within an appropriate range.

Air compressor for aquaculture can be used to drive pneumatic valves, pneumatic actuators and other equipment to achieve regulation and control of water quality parameters.

aquaculture air blower

Cleaning and dust removal:

Breeding ponds, breeding equipment and breeding sites need to be cleaned and dusted regularly to ensure water quality and environmental hygiene. Air compressor for aquaculture can provide compressed air for cleaning equipment and dust removal equipment, such as high-pressure water guns, water spray devices, jet cleaning systems, etc., to achieve cleanliness and hygiene of the breeding site.

Fish fry transportation:

In aquaculture, the transportation of fish fry is an important link. Air compressor for aquaculture can be used to drive pneumatic conveying systems, such as pneumatic conveying pipes or pneumatic conveying devices, to achieve the conveying and transportation process of fish fry. It can help you minimize processing time and improve the welfare of fish. In farms in open waters, compact air units can be placed directly on board.

Air compressor for aquaculture in oxygenation

Aquaculture air pump

Air compressor for aquaculture produce oxygen for dissolved oxygen technology. From hatching to handling, throughout the stock life cycle, numerous aquaculture blowers and oxygen solutions are used to ensure the quality of the finished product.

In the cultivation of freshwater or saltwater species such as fish, crustaceans and molluscs, many steps rely on clean, oil-free air certified by Class 0 and, in dense stocking situations, on air compressors for fish tank.

The dissolved oxygen content of the breeding environment directly affects the metabolic intensity of fish, thereby affecting their growth. It is difficult to maintain the oxygen content in the water at 5mg/L using compressed air.

Many farmers encounter various problems in breeding, such as poor fish breeding, high investment, and no benefits, which are mostly related to the fact that dissolved oxygen does not meet the demand. The purpose of fishermen’s breeding is high yield and high profit.

After using an aquaculture air compressor, the fry can grow quickly and reduce damage; the best aquaculture air compressor can also improve the quality of the water and provide a good growth environment for fish.

Benefits of using air compressors for oxygenation

compressor for aquaculture

Improve the living environment of fish habitats

Reduce the concentration of toxic substances such as ammonia nitrogen, nitrite nitrogen, hydrogen sulfide, etc. Dissolved oxygen is a necessary condition for fish survival. Traditional fish farming uses the floating head of fish as a sign of oxygenation.

Fish swim to the surface of the water to breathe, and lack of oxygen for at least 3 hours. At this time, it is too late to add oxygen. It is a rescue and treatment for fish and shrimp after they are sick. In this case, the growth of fish will be hindered and their resistance will be significantly reduced.

The difference of maintaining high oxygen content is that it keeps fish and shrimp in a good growth environment at all times. The more vigorous the metabolism of fish and shrimp, the less sick they are, the faster their growth rate is, the higher the utilization rate of bait is, and the aquaculture can achieve stable and high yields.

Improve the living environment of fish habitats

Promote the growth and development of fish

Fish living in water need oxygen, especially high-density farming; the solubility of oxygen in water is very small. If there is not enough oxygen in the fish pond, the development of various organs of the fish will slow down. The aquaculture air pumps can effectively increase the oxygen content in the water, which can greatly promote the growth and development of fish.

Reduce the damage caused by fish fighting

Reduce the damage caused by fish fightingIn order to improve the breeding efficiency, the fish density in the fish pond is usually high. If the oxygen content in the water is insufficient, the fish will become irritable, and will frequently rub against each other and get injured. After the fish are injured, the mortality rate will also increase, resulting in the loss of the fish pond’s output. After using an air compressor for aquaculture, the oxygen in the water will increase, which will reduce the fight between fish and thus reduce damage.

Improve water quality and reduce diseases

In addition, when there is not enough oxygen in the fish pond, anaerobic bacteria will ferment and produce harmful substances such as ammonia nitrogen and hydrogen sulfide, which will deteriorate the water body. Fish living in such a water environment are prone to illness. The reasonable use of air compressor for aquaculture can increase the dissolved oxygen content in the water, avoid anaerobic fermentation, and effectively reduce the occurrence of fish diseases.

Dissolved oxygen and food intake

When the dissolved oxygen content is above 5mg/L, fish feeding is normal; when the dissolved oxygen content drops to 4mg/L, fish feeding decreases by 13%; when the dissolved oxygen content drops to 2mg/L, fish feeding decreases by 54%, growth stagnates, and floating head phenomenon begins to appear; when the dissolved oxygen content drops to 1mg/L, fish and shrimp basically stop eating, and float to the surface, forming floating head phenomenon; when the dissolved oxygen content drops to 0.5mg/L, all fish and shrimp will suffocate and die within a few hours.

The oxygen content generally required in low-density aquaculture water is 5-8 mg/l, and the oxygen content generally required in high-density (โ‰ฅ40 kg/mยณ) aquaculture water is 8-10 mg/l.

Some fish have higher requirements for oxygen intake and ultra-high-density aquaculture, and the requirements for dissolved oxygen in water are more stringent, requiring 12-16 mg/l to meet the conditions required for normal survival and growth of fish.

Dissolved oxygen and food intake

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How to produce oxygen with air compressor for aquaculture

Using compressed air, passes through a cold and dry filtered air source treatment system, and then obtains pure oxygen through pressure swing adsorption. It is ready for immediate use. The oxygen purity obtained by the commonly used aquaculture air blowers and aquaculture air pumps on the market is about 93%.

In recent years, the improvement of aquaculture air blowers, aquaculture air pumps and other breeding equipment has greatly promoted the growth of fishery breeding, and it has begun to take shape and has enabled fishermen from all over the country to embark on the road to wealth, which has effectively promoted the overall development of fishery breeding.

Oxygen supply method

When using an air compressor for aquaculture to supply oxygen to a breeding farm (or pond), two oxygen supply methods can be used: one is decentralized oxygen supply; the other is centralized oxygen supply. These two oxygen supply methods are divided according to the different ways of dissolving oxygen in water. Each method has its own advantages and disadvantages. The following is a detailed introduction of each method.

Decentralized oxygen supply system

Distributed oxygen supply refers to the oxygen generated by the air compressor for aquaculture (oxygen purity is more than 90%), which is transported to each fish pond unit that needs gas through a closed pipeline, and then diffused into the pool water through the dispersion device at the end of the pipeline.

The distributed oxygen supply method is relatively simple in structure and suitable for relatively small breeding farms. It has the advantages of low investment and quick results. However, distributed oxygen supply also has its disadvantages, such as too dense pipes in the fish pond, which is not very convenient when cleaning the fish pond, and there is a lot of material waste. The dissolved oxygen content in each pond is difficult to control.

Decentralzed oxygen supply system

Centralized oxygen supply system

The advantage of centralized oxygen supply is that it can effectively control the oxygen content of the fish tank, and can also effectively and quickly disinfect the fish pond, which is easy to realize automatic control and reduce labor input by air compressor for fish tank.

The method of centralized oxygen supply is also relatively simple. The specific method is to set up a pressurized dissolved oxygen device at the water source. All or part of the water at the water source is pressurized and dissolved before being transported to the fish pond through a pipeline.

The centralized oxygen supply method is relatively complex in structure, requiring the installation of a booster pump and an ejector or dissolved oxygen cone. It has a large investment and is suitable for large-scale breeding farms. However, once installed, the subsequent maintenance is simple and the dissolved oxygen content in each pool is easy to control.

Oxygen dosage

Usually the oxygen content in the fish pond is 2-3mg/l. When mechanical aeration (such as Roots blower) is used in the fish pond, the oxygen content can reach 5mg/l. Low-density breeding can basically stabilize at 5mg/l, and high-density breeding will drop to 4mg/l.

However, in many factory aquaculture, fish are raised from small fry to large fish, and various low-density and high-density breeding fish ponds will appear, so there is a demand for various oxygenation methods. Therefore, general farms are equipped with Roots air blowers for aeration and oxygenation, and aquaculture air compressors for jet oxygenation.

Select right air compressor for aquaculture

Select by pressure: If you pay more attention to the pressure of the oil-free air compressor, you should set it at least 50% higher than the actual use pressure when selecting the model, and increase the requirements for the factory pressure parameters.

Adjust the use within the adjustable range. For example: if choose an air compressor for aquaculture with a low pressure of 0.8Mpa, you can require the factory pressure to be: 0.8ร—1.5=1.2Mpa when selecting. This is the final required pressure. But it must be adjustable.

KUW Series Silent Scroll Air Compressor applications

Select by air flow: Under a certain flow rate, reducing energy consumption is the key to designing an oil-free air compressor for aquaculture. Only this design angle can reflect the ability of the manufacturer. For example: for the same flow rate of 100L/min, when your operating pressure only needs 0.6Mpa, the corresponding tool only needs 0.5KW. If the manufacturer can do this, the customer will get a low-energy product and a low-noise environment. Because less power can bring less noise.

Selection of air tank: The selection of air tank must take into account the stability of pressure, the reasonable start and stop time of the air compressor for aquaculture, and the method of drainage. However, the first thing to confirm is:

  1. Whether the air tankhas a pressure vessel production license;
  2. The material and wall thickness of the air tank;
  3. The drainage method of the air tank.

Explore Kotechโ€™s air compressorsย for aquaculture

We have focused on the humanization and functionality of air compressor for aquaculture control for many years.

Kotech air compressor for aquaculture can realize remote interface joint control, can be integrated with computers, and can also realize multi-machine joint control; using PLC touch screen technology, pressure and flow can be set arbitrarily, multiple machines work in turn, and the operating data and protection of each host are stored separately. It can be controlled with the customer’s control system.

Kotech is an experienced air compressor manufacturer and is always the first choice of all your air compressor needs. Kotech team of experts is experienced and professional, and can help you solve any problem you may have on air compressors.

From selection to installation to maintenance, we can provide a complete guide including optimal advice and solutions for your project. Contact us today to learn more about the air compressors we manufactured.

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