Aquatic
Resources for Green Energy Realization “AQUAREL” project (KA397) is at the finishing
line. The project has developed an AQUAREL concept for the Republic of Karelia
for utilizing fish waste and other aquatic biomaterial in green energy
production or other economically profitable purposes.
The AQUAREL
concept provides a sustainable end to end solution for utilizing fish processing
side streams for fish oil production.
• Fish oil
can be utilized as such or by further processing it to bio-diesel, fish meal or
animal fodder.
• The oil,
water and solid phases are separated from the heated fish waste based on
gravity.
The end to
end solution was piloted in the Republic of Karelia. The process piloted was a
batch process, designed to manage 250 kg of side stream, mainly fish viscera,
per batch. The fish side streams are first heated in a heating unit. The oil
phase on top of the heating unit is removed after which the rest of the mass is
pumped to the fish oil separation unit. In separation unit the fish waste is
separated into two (2) phases by gravity; fish oil and solids including the
water and oil.
The AQUAREL
project partners from Oy Culmentor Ltd, Ecofoster Group Oy, Vilia Ltd and Karelian
Research Centre of the Russian Academy of Science visited the pilot facility in
Borovoi, Karelia to learn the fish oil production process in practice.
Jaakko Seppälä, Ecofoster Group, taking fish
oil
samples from the heating unit.
samples from the heating unit.
Based on
the pilot experience Jukka Hellgren from Oy Culmentor Ltd. concluded that even if the fish oil production process is
not complicated, the operative management of small-scale production unit requires
dedicated resources and separate facilities especially to meet hygiene
requirements.