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Sustainability of the recirculating aquaculture system

Low environmental impact

RAS is a rare example of sustainable industrialized farming. This makes RAS a potential key player in solving the increasing demand for food as the world’s population rises to a projected 9 billion people by around year 2050. Notably, an absolute and relative rise in the demand for protein will accompany the expanded human population. This could create a sustainability disaster if the “protein gap” is to be filled by increased production of livestock in conventional farming.

Improvements made to RAS may increase its adoption rate and therefore its contribution to solving the world food crisis in a sustainable way. One way to potentially improve RAS substantially is by lining the fish tanks with an effective antimicrobial coating or by implementing a large-scale CDI during purging.