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Oil-free vacuum pump in aeration process

Positive pressure aeration equipment is an efficient, economical and reliable way to supply air for fish in fish tank. Similar aeration systems can also be used to supply air or oxygen to bacteria in biological filters and mud tanks.


Which series of vacuum pump products are especially suitable for barotropic aeration process? The reliability and accuracy of oil-free vacuum pumps have long been well known, and they are the perfect choice for fish farms and biological filters. It is also the best choice for slurry tank aeration and the most economical and reliable solution for bacterial air supply.

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What are the structural advantages of oil-free piston vacuum pump?


1. Top cover: simple folding and replacement


2. Valve Plate: Strong and Durable


3. Cylinder: smooth and hard, durable and wearable


4. Shell: Aluminum alloy die-casting, beautiful and lightweight


5. Piston Leather Ring: Soft and Wear Resistant, Long Life


6. Connecting rod assembly: precise combination, flexible operation


7. Cooling Fan: High Efficiency Heat Dissipation, Reduce Motor Temperature


8. Fan Cover: Prevent sundries from entering and hurting human body


9. Muffler: Reduce noise and be quieter


10. Shock foot: fixed shock absorber


Application examples of oil-free vacuum pumps in aeration process:


Aquarium aeration - fish farming


Mud tank aeration - sewage treatment


Biofilter aeration - fish farming


Fish tank aeration system can increase dissolved oxygen in water. Detailed analysis of your equipment, assessment of your specific requirements, and find the most appropriate and economical solution. We will determine the type and specifications of vacuum pumps according to the structure, length, diameter and configuration of the fish tank.


Slurry tank aeration is a biological process that can remove physical, chemical and biological pollutants from sewage to obtain pure water and solid waste. First, air or oxygen is pumped into the source sewage to promote bacterial purification. Bacteria oxidize biomass to remove phosphate, carbon dioxide, ammonia and nitrogen from sewage. Once the sewage is adequately treated, the purified liquid will be transported to the sedimentation tank. After the water flows through the sedimentation tank, it usually needs further treatment before it can be used. Separated solid waste can be sent to disposal or used as fuel to generate energy. Oil-free vacuum pump is an ideal choice for aeration of slurry tank.


Biofiltration is a commonly used biological water treatment process in fish farming industry. The process can be achieved by supplying natural bacteria in two stages: first, ammonia is converted into nitrite by aerobic bacteria, and then nitrite is converted into nitrate by other bacteria. Nitrate is less toxic and will not affect most fish as long as the amount is moderate. Use fans or compressors to supply air for aerobic bacteria in biological filters. Oil-free vacuum pump is an ideal choice for biological filter aeration.


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