The Green Fish Farm Concept

Fully closed fish farm concepts need to cover the handling of the large volumes of generated waste. These extra measures can bring both economical and environmental benefits. This is The Green Fish Farm Concept, it gives us a industrial revolution.

07.11.2016 by Gunn Janne Myrseth

The Green Fish Farm Concept

Zero emission and Zero Waste Fish Farm concept is now working with different sources to get support and industrial partners. Cop. ill. CMR Prototech

Norway is one of the largest seafood producers in the world and every day, throughout the year, over 36 million meals of seafood from Norway are served worldwide according to the Norwegian Seafood Federation. The Hordaland county is one of the largest fish farm area in
Norway producing around one million smolts. Only in 2012 the Norwegian aquaculture production was approx. 1.2 Mtonns and reached a first-hand value of 31.4 billion NOK.

Different closed farmsunits have been developed (e.g. Hauge Aqua, Ecomerden, Akvadesign, Fish Globe, Aquadom, Nekton Havbruk, Engesund, Losna Seafood) with many positive benefits such us preventing escaping of the fish, avoiding the fish lice problems, less medicines and antibiotics, but also that the fish sludge will no longer reach the bottom of the sea and the environmental aspects related to water pollution are thus solved. If the fish farming industry will manage to collect and use all the sludge from 1 million tonnes salmon/year to produce biogas then 70-190 million m3 methane could be produced, equivalent to 0.7-2TWh energy9. Therefore, while closing the fish farm cages represents a good environmental measure, it will not be enough to obtain a fully green farm. Fully closed fish farm concepts need to also cover the handling of the large volumes of generated waste. These extra measures can bring both economical and environmental benefits.

The goal of the present project is to develop an innovative fish waste processing unit to be further integrated in a full scale concept of a zero emission and zero waste fish farm - Green Fish Farm (GFF). The final concept applies to both on-land or sea-based fish farms. The present project focuses on the production of biofuels/biogas from the fish waste (via e.g. anaerobic digestor or thermal decomposition)with additional help from algae/microalgae/shells (via biomass farms), and will also enable vegetables production by using fish waste in aquaponics.

The GFF will also integrate different renewable technologies to generate power (e.g. wind, solar, wave, hydro); will incorporate the production of oxygen (via electrolysis) to oxygenate the fish and hydrogen for use in the maritime and transport sectors (i.e. local feeding/maintenance boats, or external customers).

Zero emission and Zero Waste Fish Farm concept is now working with different sources to get support and industrial partners.

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