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The seawater is pumped onto the
farm from the Bay

A view of the UV system used
to treat the seawater
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The seawater is pumped into a header tank, cleared of seaweed and any detritus by filters, and treated with UV to kill pathogens. It is then pumped to the fish holding tanks via the over-ground pipe system. Having the pipes over-ground enables you to quickly identify where a problem is, and to take action if required i.e. breakage/blockage. Each fish tank receives the treated seawater, and a separate supply of pure oxygen. The oxygen is generated and pumped from an AIR-Sep unit, which breaks down the trapped air into its components (removes the nitrogen and argon) and hence, is pumped as a pure oxygen supply to the fish tanks. In the near future, the heat will be harnessed (using heat exchangers) from the process of oxygen extraction and pumped via an indoor tunnel to heat the fish tanks.
There are oxygen and temperature probes in the tanks to monitor the levels, and each is individually alarmed. After being transferred through the tanks the water is again treated before being sent back into the sea. The water leaving the system is cleaner than the seawater in the bay. This is done through a process whereby the solids are taken out of the water via large mechanical filters and the water is then passed through bio-filters, which in turn strip out the dissolved gases such as ammonia. The water is then passed through Ozone to kill any pathogens, which may be in solution, and from here the water is expelled as effluent into the bay for dilution.
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