Conserval – Recovery of by-products and waste water from the canning industry in the POCTEP space

Between Galicia and Portugal, more than 350,000 tonnes of preserves are produced annually, which generates high quantities of solid by-products and liquid waste flows. The guarantee and growth of the canning sector requires the care and protection of the marine environment, source of the necessary raw material for the production of canned food. The treatment of this waste water is therefore fundamental to preserve the marine ecosystem and to ensure the resources of the sea. However, this treatment presents certain limitations due to the variable production of the preserves, peaks of polluting load and low flexibility of the treatments.

CONSERVAL is a collaborative project between Spain and Portugal co-financed by the European Regional Development Fund ERDF through the Interreg V-A Spain-Portugal Programme (POCTEP) 2014-2020, which aims to develop technologies for the recovery of by-products and waste water from the canning sector in Galicia and Northern Portugal.

More specifically, CONSERVAL aims to transform these solid and liquid streams into products with greater added value and high business potential, such as specific volatile fatty acids, fish oils with a high Omega 3 content and high value protein hydrolysates.


Project website 


Project Coordinator

  • Cetaqua, Water Technology Centre, Spain


Project partners

  • ANICP, Associação Nacional dos Industriais de Conservas de Peixe, Portugal 
  • Universidade do Porto, Portugal 
  • Universidade de Santiago de Compostela, Spain
  • FEUGA, Fundación Empresa-Universidad Gallega, Spain