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Aquaculture
One of the major challenges for fish farms around the world is lice infestation, which can force farmers to pull their fish out early. In addition to the use of cleaner fish, a thermo-mechanical treatment has proven successful. In this process, pressure is used to lift the lice off the fish before they can be removed by low-pressure flushing. Pressure sensors control the process and ensure that it runs safely and efficiently.
Aquaculture
Fish waste is one of the highest quality raw materials for the production of oils. These oils are, among other things, the source of omega-3 oil. The distillation-based production of the oil requires careful control in high temperatures and vacuum. In the oil vapour condensation process, reliable limit level detection must ensure the accurate switching on and off for the dependable operation of the pumps.
Aquaculture
When rearing fish larvae to the young adult stage in onshore systems, the optimal amount of oxygen in the water is a necessary criterion for growth. To reliably and cost-efficiently monitor the compressors required for this, the feed lines carrying the oxygen-enriched water must be monitored for correct pressure. This way, the system can detect a malfunction or a drop in pressure immediately. Reliable operation allows the young fish to grow up healthily and stress-free.
Aquaculture
As well as the type of fish being farmed, it is the feed coefficient, the so-called "fish in – fish out" ratio, that determines the required quantity and appropriate composition of feed. To ensure on-time availability and optimal feed composition, reliable stock level monitoring is necessary. The feed stocks, from production to delivery and distribution, are visualised and reliably managed. Automatic ordering processes are triggered by VEGA Inventory System.
Aquaculture
To feed the fish, automatic systems distribute feed pellets from the storage containers. In floating facilities, there are several storage containers located next to the "grow-out tanks" for this purpose. These are continuously monitored in order to reliably measure the amount of feed extracted. In this way, evenly distributed feed quantities can be ensured over the entire lifetime of the fish.
Aquaculture
In on-shore facilities, reliable filtration ensures the required water quality. This is achieved through the use of mechanical drum and disc filters. They form a multi-stage system, where automatic flushing via jet nozzles is controlled by the water level in the tank. Besides a high water quality, the fish also need the right amount of oxygen in the water. After the water has been cleaned, the correct amount of oxygen is added to it via compressors. Throughout the entire process, a guaranteed flow of water with sufficient oxygen enrichment is essential and therefore ensured by reliable differential pressure measurement and limit level detection.
Aquaculture
Under ideal conditions, a wide variety of fish species can live in indoor and outdoor tanks, either in or near the sea. It is extremely important that the tanks are reliably monitored against leakage and always adequately supplied with fresh water. Reliable pump monitoring when emptying and filling the tanks is also important. All three factors increase the efficiency of fish production and make a significant contribution to the overall success of the facility.
Aquaculture
Water and cleaning agents are used to efficiently clean the feed pellet containers. These media are stored on site, for example on a feeding barge or on a supply ship. Reliable level measurement ensures that the required amount of cleaning agent is available at all times. And this in turn guarantees that the feed pellet containers are cleaned quickly in the time between complete emptying and the next filling.
Aquaculture
Since the fish scraps left over from filleting still contain a lot of usable substances, they are processed further. To enable simple, mechanical processing, these leftovers are pre-processed for the mill and stored in an intermediate tank. Depending on the feedstock, different consistencies can form in this tank. Reliable point level detection prevents overfilling or dry run.
Aquaculture
Recirculation aquaculture systems (RAS) score points with their low water consumption. In such systems, water is treated and reused in a way that conserves resources. This is facilitated by circulating the water in a closed loop. The necessary pump technology is monitored with pressure sensors in order to detect any malfunction immediately.
Aquaculture
When transporting live fish, the operators of aqua farms do everything in their power to carry out the task as efficiently, gently and stress-free (for the fish) as possible, usually with the help of special ships. Large amounts of water are required to maintain the water quality in the tanks during transport. The seawater is forced through a semi-permeable diaphragm under high pressure. Only pure water molecules can pass through. Differential pressure measurement monitors the level of contamination of the filter.
Aquaculture
After mixing with acid, the ground fish scraps are mixed and ground again. Pressure sensors are used to monitor the mill. They enable immediate detection of any malfunction of the mill. This ensures uniform processing of the fish scraps over the long term.
Aquaculture
Fish waste and scraps are the valuable raw material for fish silage, which in turn is a protein-rich raw material for the production of fish meal and dry fish feed. The acids used during production enable controlled growth of bacteria. The levels in the storage tanks must be carefully and reliably monitored. The visualisation of current process and storage status is handled by VEGA Inventory System.
Aquaculture
The pipes installed above the fish tanks enable demand-oriented, automatic feeding at any time of day. To this end, the storage tanks are continuously monitored to make sure they contain sufficient fish pellets and always get refilled on time. The tanks vary in size, depending on whether young fish or adult fish are involved.
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