Summary
The thermophilic (55°C) bioconversion of cellulose (α-floc) to volatile fatty acids ceased prior to completion at high cellulose concentrations. This was attributable to the formation of large aggregates of partially digested cellulose which resulted in mass transfer limitations. Mechanical re-dispersion of cellulose enhanced the acid production. The total acid concentration increased from 4.18 g/L volatile acids (control) to 6.92 g/L after two blendings.
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References
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Bhadra, A., Scharer, J.M., Moo-Young, M. et al. Enhanced anaerobic digestion of cellulose by intermittent floc-dispersion at 55°C. Biotechnol Lett 8, 209–212 (1986). https://doi.org/10.1007/BF01029382
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DOI: https://doi.org/10.1007/BF01029382