9 Articles found
Blue Unit A/S Articles
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The Power of the Lab Station - Case Study
Follafosssmolt facility is in central Norway and produces 20 million smolts each year. It is owned by SalMar.
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pH-management in a fish farm
pH affects the toxicity of substances in water. A typical pH-drop leads to a two- to threefold increase in the level of toxic free CO2, initiates the formation of H2S, and increases the toxicity of several metals, including copper (Cu2+). ...
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Decreasing degasser aeration to increase buffer capacity
Fish and bacteria produce CO2 into the production water of RAS farms. If 100 kg of CO2 is produced in a single day, 100 kg of CO2 should be removed. Otherwise CO2 will accumulate in the system. If pH is low the accumulation of CO2 in the system is ...
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Hydrogen Sulfide – The silent killer
Elevated levels of hydrogen sulfide (H2S) have lethal effects on fish. The presence of oxygen will work against the production of H2S, but it is a very slow process that cannot protect the fish in situations with sudden spikes of H2S. These ...
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Data capture ensures stable water quality
Blue Unit has over the last year and a half participated in a project that focuses on developing danish technologies. The case was given the title “Data capture ensures stable water quality”. You can read more in this case study.
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Manual- vs automated data collection
On many fish farms, several water quality parameters (including toxic free CO2) are only measured manually at fixed times or in selected tanks. The water quality is fluctuating daily and are often following rhythmic patterns. With this method, you ...
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Improved data representation software
Blue Unit has created a new software as we felt that our data was not properly utilized with older software tools. The new software includes 5 different pages, two of these provides the customer with a basic overview of the water quality in the farm ...
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Water boarding on the modern fish farm
How do you know if your fish are inadvertently being throttled by rapidly deteriorating water quality? Fish swim, feed, excrete and play… all in their watery home. On a modern fish farm, all these processes significantly impact upon tank ...
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New technology to breed healthier fish faste
Blue Unit in collaboration with SDU Sønderborg is developing new technology to secure a stable water quality in recirculation fish farms and create optimal conditions for fish to grow. The partnership was a result of a match made by Odense ...