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Evaluation of the biomethane potential of solid fish waste
Eiroa, M.; Costa, J. C.; Alves, M. M.; Kennes, C.; Veiga, M. C.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 0.47 g COD–CH4/g CODadded was obtained in batch experiments with 1%TS; whereas for mackerel waste, the methane production attained...
A technique using a membrane flow cell to determine average mass transfer coeff...
García López, L. A.; Veiga, M. C.; Nogueira, R.; Aparicio, A.; Melo, L. F.Average mass transfer coefficients of an inert compound (LiCl) within denitrifying biofilms were monitored during biofilm growth in a membrane flow cell under different flow conditions, until the biofilm reached (pseudo-) steady state. Average effective diffusivities were found to increase with the decrease in tortuosity factors of the biofilm matrix. The lowest tortuosity factor corresponded to the biofilm for...
Use of a membrane flow cell to measure average mass transfer coefficients in de...
García López, L. A.; Veiga, M. C.; Nogueira, R.; Melo, L. F.Average mass transfer coefficients within denitrifying biofilms were determined during biofilm growth with an inert compound (LiCl) in a membrane flow cell at different flow conditions, until the biofilm reached (pseudo-) steady state. Similar values were obtained for the steady-state mass transfer coefficients of LiCl within the different biofilms. However, those coefficients were higher during the transient p...
Studies of mass transfer coefficients in denitrifying biofilms
García López, L. A.; Veiga, M. C.; Nogueira, R.; Melo, L. F.Mass transfer coefficients within denitrifying biofilms were determined with an inert compound (LiCl) using two different flow conditions in a membrane flow cell and feeding an easily degradable substrate. The experiments were made until the biofilm reached steady state. The results obtained from the biofilm mass transfer experiments show that the biofilms grown under these two different conditions reach simila...
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