Alvestad
Alvestad Marin is a leading supplier of products and system solutions to the fish farming business. AM has developed, patented and commercialised unique solutions for the production of fry. The company’s main focus is on innovative solutions for hatcheries and water Recirculation. The company’s products are currently leading within these areas in all the salmon producing countries and the company has a subsidiary in Chile. |
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11.20.2010
06.03.2010
05.08.2010
05.07.2010
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Recirculation |
KUBE®start is a complete recirculation system based on a "moving bed" bioreactor (MBBR) as biofilter step together with other well-known methods of water treatment such as UV, ozonation, particle removal and oxygenation.
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A modern recirculation system based on well known technology
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Illustration of the water flow in the bio-reactor. The water (blue arrows) is pumped from the filter unit (right side of the figure) into the top of the first chamber in the bio-reactor. The water exits the chamber through a bottom grid and lead through a side-channel to the top of next chamber. The water flow in chamber number two follows the same principle as the first chamber, and the water is then brought into the airing unit placed after the bio-reactor. Circulation in each chamber is attained by air (red arrows) supplied from the bottom. Such water circulation ensures maximum retention time of the water inside the bio-reactor, and thereby also maximum utilization of the biological water treatment. Additional airing under the bottom grid counteract sedimentation. |
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Particle separator and tank with double discharge through which 85 % of the water passes out through an auxiliary discharge and is brought to the discharge pipe. The remaining water is discharged through a centre discharge pipe in the bottom and must pass the particle separator before it is transported to the discharge pipe and cleaning in a mechanical strainer. |
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