From hatchery to handling: during the lifetime of your population you apply different methods to ensure the quality of your end product. A lot of the processes within the cultivation of fresh- or saltwater populations of organisms such as fish, crustaceans and mollusks are dependent on the delivery of Class 0 certified clean, oil-free air or - in case of dense populations - oxygen generators. With our range of aquaculture blower and oxygen solutions, we offer you reliable blowers and oxygen generators at a low lifecycle cost that help you guarantee the quality of your end product and support your sustainable growth.
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Whether it's to help you guarantee the water quality, install an efficient feeding system, create a protective bubble curtain or move live organisms from one place to another, you will be dealing with several applications that require compressed air or oxygen. We offer compact blower solutions that can even be placed directly onto feeding barges or boats and ensure operational efficiency no matter the process.
Keeping a high saturation level of oxygen is key to ensure (life) quality among highly dense populations. Our energy efficient PSA oxygen generators and VSA oxygen generators for the aquaculture industry ensure you 24/7 availability of up to 95% oxygen purity and are a cost-effective alternative to liquid or bottled gas as you eliminate different overhead costs that come with the delivery of bottled and liquid industrial gasses.
As oxygen is a vital condition for the survival of all organisms living in water, the dissolved oxygen content of the water is one of the most important parameters of water quality. Aeration is thus a vital part of the production process on offshore and land based fish farms, in life fish storage tanks and fish ponds. The principle of aeration is not only used to maintain the right oxygen levels, it also helps to provide water circulation, thermoregulation, biological treatment, freeze protection in cold weather conditions and reduces temperature induced stress amongst stock. When dealing with a numerous amount of applications that require a continuous oxygen or air supply in the form of fine bubbles, you need a compressed air system or oxygen generator that ensures you a high uptime. We offer you variable speed drive (VSD) units that automatically match the air flow the demand, making sure no energy is wasted.
Aside from excellent water quality you also need an effective way to feed your population and hatcheries with feeding pellets in various sizes or powder. This is often done via a pneumatic conveying system that contains blowers to provide your system with compressed air. The blowers can be installed either inside a fish barge (for farms on open water) or as part of a stationary feeding system (for land based farms). And although the size of your blower installation depends on the type of feeding pellets and the length of the feeding lines, a compact solution - especially in fish barges used on offshore farms- is a must. As we offer a wide range of blowers suited for different pressures and flows, you are sure to find a perfect fit within our air blower portfolio for whichever type of nutrient (from powder to pellets) you are dealing with.
Bubble curtains are mainly used on farms on open water and seas as a sustainable way to protect your population from different outside influences. A bubble curtain creates a barrier around pens via a constant stream of bubbles, preventing jellyfish and sea lice from passing through as they have a significantly negative impact on the health of your population. To create a bubble curtain, you need a compressed air solution with a high process uptime that can support the continuous demand for air. Our air blower technologies ensure you high uptime and reliability, making sure you can focus on what really matters: the quality of your final product.
A pressure system for loading and unloading live fish is a more gentle and efficient way of transporting live fish and can be used in different lifecycles of the fish: it helps you to minimize handling time and increase the welfare of your population. At farms on open water, a compact air installation can be directly placed on the boat. The oil-free air from our blowers will add to the benefits of using a gentler and time reducing transportation system by minimizing the risk of oil contamination of the water and surrounding, helping you to comply with regulations. On top of that, our compact air blower solutions are an ideal fit if you are looking to save space when working in confined spaces such as boats.
Dead fish can form a health threat to your population and decrease your operational efficiency so it's important that they are removed as soon as possible. A rapid and constant stream of bubbles inside a special collector at the bottom of a cage can help you bring dead fish up and onto your boat. We offer you robust and compact solutions that can even be placed directly onto a boat or barge and can be monitored from a distance by using SMARTLINK technology.
Adding oxygen to aquaculture and increasing the dissolved oxygen content of the farming environment increases the activity and feeding efficiency of fish and shrimp, increases farming density and metabolic intensity.
Ordinary air oxygenation in the water body to maintain the DO content of 5mg / L are more difficult, many farmers in the culture of a variety of problems, bad breeding, more inputs, no benefit, most of them related to the dissolved oxygen can not reach the demand. The use of oxygen generators high-purity oxygen can effectively improve the oxygen content of the water, significantly promoting the growth and development of fish
Dissolved oxygen and feeding: Dissolved oxygen is above 5mg/L, fish feeding is normal; Dissolved oxygen drops to 4mg/L, fish feeding drops 13%; Dissolved oxygen drops to 2mg/L, fish feeding drops 54%, growth stagnates and the phenomenon of floating head starts to appear; Dissolved oxygen drops to 1mg/L, fish and shrimps basically do not eat, and float out of the water, forming the phenomenon of floating head; Dissolved oxygen drops to 0.5mg/L The fish and shrimps will all suffocate and die in a few hours.
Minnnuo Group has designed oxygen solutions for farmers around the world to maximise cost recovery. Avoiding the risk of high costs and untimely supply caused by their reliance on oxygen tanks for transport.
Plug and play. Compared to liquid oxygen, oxygen cylinders, dewars, etc., the requirements for use are reduced and there is no need for frequent replacement of the added material. The purity of the oxygen produced is over 93±3%, which is perfectly suited to the needs of the farm.
2. Less consumables
almost an input without secondary consumption. Pure oxygen generator for fish farm with air as raw material, without any auxiliary materials, no pollution, low cost, one kilogram of oxygen (oxygen) can be produced by one degree of electricity, full pneumatic control, simple and reliable structure, easy maintenance and adjustment.
3. Stable operation
oxygen (oxygen) flow (flow) can be controlled. Oxygen production is rapid and unchanging. Oxygen is produced when the machine is switched on.
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4. Humanized use
Equipped with flow adjustment device, oxygen flow can be controlled.
5. Can be connected to supporting equipment, smart control
On the basis of pure oxygen production equipment, and invested huge manpower, material resources, and experience, the development of dissolved oxygen monitoring equipment, can be matched with pure oxygen production machine, to achieve the dissolved oxygen in the water body is not enough that is open, dissolved oxygen reached that is closed, disguised to reduce consumption. It can also be used on the mobile APP for real-time dissolved oxygen monitoring, which greatly reduces the risk of breeding.
6. can be used with an ozone machine
With the pollution of water sources and the world’s emphasis on environmental protection, breeding tailwater purification, and sterilization of raw water is also on the agenda, ozone is currently known to be the best way to deal with it, but air-source ozone equipment is facing high costs, low output, poor results. Oxygen source ozone machines can not be used alone, need to be equipped with the corresponding oxygen source. Oxygen equipment solves this problem and can be used as an oxygen source to supply oxygen to the ozone system, supporting the use.
Fish Farm oxygen supply method: When using a PSA oxygen generator to supply oxygen to the breeding plant (or pool), two types of oxygen supply methods can be used: one is decentralized oxygen supply: and the other one is centralized oxygen supply, these two types of oxygen supply are divided according to the different ways of dissolving oxygen in the water, each of the two methods has its own advantages and disadvantages, the following is a detailed introduction respectively.
1. Decentralised oxygen-generating system
A decentralized oxygen-generating system means that the oxygen produced by the oxygen generator (oxygen purity of 93% or more) is transported to each fish pond unit that requires oxygen through a closed pipeline and then diffused into the pool water through the decentralized device at the end of the pipeline. The main equipment and materials used are the gas source, oxygen piping (copper or PU pipe), manifold, regulator, throttle valve, flow meter and carbon nanotubes. The oxygen produced by the gas source is controlled by the regulator, flow meter and throttle valve and then sent to the side of the fish pond by the oxygen pipeline, where it is diverted by the diverter row and then diffused into the pond water through the carbon nanotubes, where the oxygen terminal diffusion device is a carbon nanotube with many micro-pores evenly distributed on the surface so that the oxygen molecules can be evenly dispersed into the pond water.
For example, if a semi-enclosed plant with 100 L/S of water exchange is to be supplied with oxygen from a source water containing 5 ppm to maintain the oxygen content of the pool water at 10 ppm, the oxygen requirement is
Q=(5mg/L × 100L/S)/60%=833mg/S=0.833g/ s=2.1Nm3/h
The decentralised oxygen supply method is relatively simple to construct and suitable for small breeding plants, with the advantage of quick results with little investment, but decentralised oxygen supply also has its drawbacks, such as too dense in the fish pond, not very convenient when cleaning the fish pond, and more material waste, the dissolved oxygen in each pool is more difficult to control and other disadvantages.
2. Centralised oxygen-generating system
The advantages of centralised oxygen supply are that the oxygen content of the fish pond can be effectively controlled, the fish pond can be effectively and quickly disinfected and it is easy to automate the control and reduce labour input. The method of centralised oxygen supply is also relatively simple and involves setting up a pressurised dissolved oxygen spray chamber at the water source, where all or part of the water from the source is pressurised and dissolved before being piped to the fish pond. The oxygen generator can provide oxygen at a pressure of 0.6 to 0.1MPa at its outlet, so the pressure required for pressurised oxygen dissolution is fully met without the need for additional pressure boosting equipment. For example, if you want to use PSA equipment to supply oxygen to a semi-closed aquaculture plant with a water exchange of 100L/S to increase the oxygen content of the fish pond by 5ppm, the oxygen requirement is
Q = (5mg/L × 100L/S ) / 90% = 555.6mg/S = 0.g/s = 1.39Nm3/h
we recommend using a 5Nm3/h 93% oxygen generator, a price of around: $