CNR ExploRA

Articolo in rivista, 2023, ENG, 10.1016/j.wasman.2023.06.002

Prospective life cycle assessment for the full valorization of anchovy fillet leftovers: The LimoFish process

Francesco Arfelli, Daniela Maria Pizzone, Daniele Cespi, Luca Ciacci, Rosaria Ciriminna, Paolo Salvatore Calabrò, Mario Pagliaro, Francesco Mauriello, Fabrizio Passarini

Department of Industrial Chemistry "Toso Montanari", University of Bologna,Bologna, Italy; Department of Civil, Energy, Environmental and Material Engineering (DICEAM), Università degli Studi Mediterranea di Reggio Calabria, Reggio Calabria, Italy; Istituto per lo Studio dei Materiali Nanostrutturati, CNR, Palermo, Italy; Interdepartmental Center for Industrial Research Renewable Sources, Environment, Sea and Energy, University of Bologna, Rimini, Italy; Center for Chemical Catalysis - C3, University of Bologna, Bologna, Italy

Prospective life cycle assessment models were developed and applied at the laboratory and industrial scale with the aim to evaluate the environmental burdens associated with the LimoFish process used to produce the fish oil "AnchoiOil", the new organic fertilizer "AnchoisFert" or biogas (by means of anaerobic digestion) after treatment of anchovy fillet leftovers (AnLeft) with agro-solvent d-limonene. Potential impacts for climate change and freshwater eutrophication were estimated at 29.1 kg CO2 eq/kg AnLeft and 1.7E- 07 kg PO4 eq/kg AnLeft at laboratory scale, and at 1.5 kg CO2 eq/kg AnLeft and 2.2E- 07 kg PO4 eq/kg AnLeft at industrial scale. Electricity consumption is the main contributor to the environmental impact of the process and plays a significant role in the production of d-limonene, for which cold pressing extraction would reduce the related impacts by ~ 70 %. The use of the solid by-product as organic fertilizer or input to anaerobic digestion would provide additional environmental benefits to the process. The LimoFish process is a successful example of a low impacting strategy to reduce the demand for natural resources and maximize the application of the circular economy principles in the fishing industry.

Waste management (Elmsford) 168