PSA Oxygen Generator For Aquaculture

PSA Oxygen Generator For Aquaculture

Oxygen application

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NEWTEK PSA (Pressure Swing Adsorption) oxygen generator produces oxygen based on the difference in the adsorption capacity of adsorbents for different gas components in the air. In aquaculture, the main advantage of our products is that they can provide high-purity oxygen continuously and stably. Produce oxygen with a purity of 90% - 99.5%. Its working process is that the air is compressed and enters the adsorption tower. The molecular sieve adsorbent in the adsorption tower preferentially adsorbs gases such as nitrogen under a certain pressure, while allowing oxygen to pass through and be collected. Choosing NEWTEK PSA oxygen generator has a relatively low cost for producing oxygen, and the equipment is easy to operate. It is an ideal choice for aquaculture farms that require long-term and large-scale oxygen supply.

Application in fish farming

Increase dissolved oxygen content and ensure fish survival: Fish need sufficient dissolved oxygen to survive. In a high-density breeding environment, the dissolved oxygen content in the water body is easily reduced, affecting the normal growth and health of fish. Using PSA oxygen generator can replenish oxygen in the water in time to prevent fish from suffocating and dying due to lack of oxygen. For example, in the hot summer season or in ponds with high stocking density, by filling the water with oxygen, the dissolved oxygen content in the water can be maintained at 5-8mg/L, which is the suitable dissolved oxygen range for the survival and good growth of most freshwater fish.

Promote fish growth and reproduction: Adequate oxygen supply is beneficial to the metabolism of fish. When the dissolved oxygen content in the water is sufficient, the appetite of fish increases and the utilization rate of feed increases. Studies have shown that under a suitable dissolved oxygen environment, the growth rate of grass carp can be increased by 20%-30%. At the same time, for some fish that require higher dissolved oxygen to reproduce, such as salmon, sufficient oxygen can stimulate their gonad development and increase the success rate of reproduction.

Application in shrimp and crab farming

Improve the breeding environment and reduce the occurrence of diseases: shrimps and crabs have higher requirements for dissolved oxygen in water. In shrimp and crab breeding ponds, low dissolved oxygen content will lead to deterioration of water quality and the growth of harmful microorganisms, thus causing shrimp and crab diseases. The use of PSA oxygen generators can effectively improve this situation. For example, in the process of farming white shrimp, keeping the dissolved oxygen content in the water above 6-8mg/L can significantly reduce the reproduction of harmful bacteria such as Vibrio and reduce the incidence of shrimp diseases.

Improve farming yield and quality: Adequate oxygen supply can improve the success rate of shrimp and crab molting. Shrimp and crab need to consume a lot of oxygen during the molting process to complete physiological processes such as hardening of the new shell. Taking crab farming as an example, by using PSA oxygen generators to maintain the dissolved oxygen content in the water at a suitable level, the success rate of crab molting can be increased by 15%-20%, thereby increasing farming yield. Moreover, shrimp and crabs farmed in an environment with sufficient oxygen have more delicious meat, more uniform specifications, and higher product quality.

Application in aquatic seedling cultivation

Optimize seedling cultivation conditions: Aquatic seedlings usually have more stringent requirements for dissolved oxygen. During the hatching of fry, sufficient oxygen is one of the key factors to ensure the normal development of embryos. For example, in the carp fry hatching pond, using PSA equipment to control the dissolved oxygen content of the water at 7-9mg/L can improve the hatching rate of the fry, which can reach 80%-90%, and also shorten the hatching cycle.

Improve the vitality and survival rate of the fry: For newly hatched aquatic fry, such as shrimp fry and crab fry, a good dissolved oxygen environment helps them quickly adapt to the external environment and enhance vitality. During the fry cultivation process, continuous oxygen supply can increase the survival rate of the fry by 20%-30%, providing high-quality fry resources for subsequent adult fish and shrimp farming.

Precautions for equipment installation and use

Reasonable installation location: NEWTEK PSA oxygen generator should be installed in a well-ventilated and dry place to avoid damage to the equipment caused by a humid environment. At the same time, it should be as close to the aquaculture water as possible to reduce the loss during oxygen delivery. For example, in an indoor farm, the equipment can be installed in a dedicated equipment room, but make sure that the room has a good ventilation system.

Correctly adjust the oxygen flow and pressure: According to the volume of the aquaculture water body, the type and density of the aquaculture organisms, the flow and pressure of the oxygen generator should be reasonably adjusted. If the flow is too large, it may cause the water body to be oversaturated with dissolved oxygen, causing problems such as bubble disease; if the flow is too small, it cannot meet the oxygen demand of the aquaculture organisms. For example, in a 100 cubic meter fish aquaculture pond, for a stocking density of 10-20 kg per cubic meter, the oxygen flow can be adjusted to 1-2 cubic meters/hour.

Regular maintenance and monitoring: Regularly maintain the PSA oxygen generator, including replacing the adsorbent, checking valves and pipes, etc. At the same time, to continuously monitor the dissolved oxygen content in the water body, equipment such as dissolved oxygen meters can be used for real-time monitoring to adjust the oxygen supply in time. Generally, the adsorbent needs to be replaced every 1-2 years to ensure the normal operation of the equipment and the efficiency of oxygen production.