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 seen as elevated levels of free CO2. If the pH is higher, the free CO2 will bind in the water as bicarbonate. Accumulation of CO2 can have detrimental effects on fish welfare and growth. It is therefore essential that a farm has complete control on the degassing efficiency of their system.
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