Electrodialytic separation of volatile fatty acids from hydrogen fermented food wastes |
| |
| Affiliation: | 1. Department of Civil and Environmental Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea;2. Carbon Resources Institute, Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon 34144, Republic of Korea;1. Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China;2. Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, Hebei 066004, PR China;1. Wageningen University, Sub-Department of Environmental Technology, BornseWeilanden 9, 6708 HD Wageningen, The Netherlands;2. VITO-Flemish Institute for Technological Research, Separation and Conversion Technology, Boeretang 200, 2400 Mol, Belgium;3. Qingdao Institute of Bioenergy and Bioprocess Technology, CAS, Waste Valorization and Water Reuse Group, Songling Road 189, 266101 Qingdao, China;4. Delft Advanced Biorenewables, TUDelft, Julianalaan 67, 2628 BC Delft, The Netherlands;1. Sustainable Environment Research Centre, Faculty of Computing Engineering and Science, University of South Wales, Pontypridd CF37 1DL, United Kingdom;2. HyET Hydrogen Efficiency Technologies B.V., Leemansweg 15, 6827 BX Arnhem, The Netherlands |
| |
| Abstract: | In this study, we investigated the electrodialysis (ED) process for the economic and efficient recovery of volatile fatty acids (VFAs) from the hydrogen fermentation broth of food wastes. Among tested operational variables, the volumetric ratio of the feed to the concentrate (VF:VC) was found to be the most critical for the fast and economic recovery of VFAs. Meanwhile, the increase in the applied voltage did not result any significant impact in the enhancement of VFA recovery due to the intrinsic resistance of anionic exchange membrane against to VFAs. The maximum VFAs purity of 96.2% was successfully achieved at the operational condition of VF:VC of 1:2 and 8 V with energy consumption of 0.395 kWh/kg-VFAs. |
| |
| Keywords: | Electrodialysis Food waste Volatile fatty acids Recovery Anaerobic fermentation |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
