Evaluation of the biomethane potential of solid fish waste |
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| Authors: | Eiroa M Costa J C Alves M M Kennes C Veiga M C |
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| Institution: | 1. Chemical Engineering Laboratory, Faculty of Sciences, University of A Coruña, Rúa da Fraga n°. 10, 15008 A Coruña, Spain;2. IBB – Institute for Biotechnology and Bioengineering, Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal;1. Université de Carthage, Laboratoire d''Ecologie et de Technologie Microbienne LETMi, INSAT, B.P. 676, 1080 Tunis, Tunisia;2. Aix Marseille Université, CNRS, Université de Toulon, IRD, MIO UM 110, 13288 Marseille, France;1. CIRSA Centro Interdipartimentale di Ricerca per le Scienze Ambientali, Via S. Alberto 163, 48123 Ravenna, Italy;2. Department of Physics, University of Bologna, Viale B. Pichat 6/2, 40127 Bologna, Italy;3. CRPA Lab Centro Ricerche Produzioni Animali S.p.A., Viale Timavo 43/2, 42121 Reggio Emilia, Italy;1. College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China;2. Faculty of Environmental Science, University of Science, Yusheng Scientist Road, Unjong District, Pyongyang 00850, Democratic People''s Republic of Korea;3. Department of Agricultural Engineering, Faculty of Agriculture, Suez Canal University, Ismailia 41522, Egypt |
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| Abstract: | Manufacturing processes in fish canning industries generate a considerable amount of solid waste that can be digested anaerobically. The aim of this research was to study the biochemical methane potential of different solid fish waste. For tuna, sardine and needle fish waste, around 0.47g COD-CH(4)/g COD(added) was obtained in batch experiments with 1%TS; whereas for mackerel waste, the methane production attained 0.59g COD-CH(4)/g COD(added). The increase in the waste/inoculum ratio, from 1.1-1.3 to 2.8-3.3g VS(waste)/g VS(inoculum), led to overload due to VFA and LCFA accumulation. Afterward, co-digestion assays of fish waste with gorse were undertaken but the biochemical methane potential did not improve. |
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