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  • Title: Volumetric scale-up of a three stage fermentation system for food waste treatment.
    Author: Kim JK, Han GH, Oh BR, Chun YN, Eom CY, Kim SW.
    Journal: Bioresour Technol; 2008 Jul; 99(10):4394-9. PubMed ID: 17911015.
    Abstract:
    In this study, a volumetric scale-up of this system was designed and built on a field pilot-scale (total digester volume 10 m(3)), with the results from the field pilot-scale experiments compared with those from the bench-scale (total digester volume 0.4 m(3)) process prior to scale-up. The reduction rate of total chemical oxygen demand (tCOD) and the maximum methane content produced in the biogas from the bench-scale system were 90.6% and 72%; whereas those from the field pilot-scale system were 90.1% and 68%, respectively. The estimated methane yields were 282 and 254 l CH(4)/kg tCOD(degraded) in bench and field pilot-scale fermentation systems, respectively. These results indicate that the three stage fermentation system developed in this study can be applied as a commercial process for the disposal of food waste in view of process stability.
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