title: Volumetric scale-up of a three stage fermentation system for food waste treatment.
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.
authors.affiliation: Department of Environmental Engineering, BK21 Team for Biohydrogen Production, Chosun University, 375 Seosuk-dong, Dong-gu, Gwangju 501-759, South Korea.
authors.forename: Jung Kon
authors.initials: JK
authors.lastname: Kim
authors.forename: Gui Hwan
authors.initials: GH
authors.lastname: Han
authors.forename: Baek Rock
authors.initials: BR
authors.lastname: Oh
authors.forename: Young Nam
authors.initials: YN
authors.lastname: Chun
authors.forename: Chi-Yong
authors.initials: CY
authors.lastname: Eom
authors.forename: Si Wouk
authors.initials: SW
authors.lastname: Kim
mesh_terms: D000693:Anaerobiosis; D001673:Biodegradation, Environmental; D001674:Bioelectric Energy Sources; D019149:Bioreactors; D001709:Biotechnology / Q000379:methods*; D003247:Conservation of Natural Resources; D005285:Fermentation; D005502:Food; D005740:Gases; D008697:Methane / Q000737:chemistry*; D010100:Oxygen / Q000737:chemistry; D010865:Pilot Projects; D012722:Sewage; D013997:Time Factors; D014865:Waste Disposal, Fluid / Q000379:methods*
chemical_list: D005740:Gases; D012722:Sewage; D008697:Methane; D010100:Oxygen