ASPERIX® 350 A&F

To ensure the well-being of the animals, particularly in a land based aquaculture facility, important water parameters such as pH, salinity, temperature, and oxygen saturation must be controlled and adjusted according to the requirements of the fish. Especially in recirculating aquaculture systems high effort is needed to maintain the water quality at an acceptable level (e.g. biological and physical filters). Nevertheless, in most systems an increase of chemical pollutants indicated by an increasing chemical oxygen demand (COD = the sum of all substances present in the water available for oxidation) can be observed over time. These pollutants originate in undigested feed, fish faeces, or other fish residues like skin or mucus, which remain and accumulate in the water despite extensive mechanical and biological filtration. ASPERIX® 350 A&F hydrogen peroxide helps to decrease the level of pollutants by oxidation to a stable minimum in the presence of the animals.
For the treatment itself the ASPERIX® 350 A&F hydrogen peroxide is dosed manually or automatically via pipes and pumps into the water loop of the aquaculture system, most preferably at locations where no fish are present, e.g. in a side stream, before the filtration systems or the protein skimmer. In water the hydrogen peroxide oxidates the pollutants yielding in smaller organic oxidation products (aldehydes, carboxylic acids, etc.), which can be more easily digested by the biological filters of the RAS, and eventually to CO₂. Hydrogen peroxide also catalytically decomposes into oxygen and water only.