A novel method for increasing biohydrogen production from food waste using electrodialysis |
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| Affiliation: | 1. Sustainable Environment Research Centre, Faculty of Computing Engineering and Science, University of South Wales, Pontypridd CF37 1DL, United Kingdom;2. Water Pollution Research Department, National Research Centre, 33 Bohouth St., Dokki, P.O. Box 12622, Giza, Egypt;3. Chemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt;1. Bioengineering and Environmental Sciences Lab, Department of Energy and Environmental Engineering, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India;2. Academy of Scientific & Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India;1. Ege University, Engineering Faculty, Bioengineering Department, 35100, Izmir, Turkey;2. University of La Coruña, Faculty of Sciences and Center for Advanced Scientific Research (CICA), La Coruña, Spain;3. Ege University, Center for Environmental Studies, 35100, Izmir, Turkey;1. School of Architecture and Civil Engineering, Chengdu University, Chengdu 610106, China;2. Institute of New Energy and Low-carbon Technology, Sichuan University, Chengdu 610225, Sichuan, China;3. Key Lab of Northwest Water Resource, Environment and Ecology, MOE, Xi''an University of Architecture and Technology, Xi''an 710055, China;4. International Science & Technology Cooperation Center for Urban Alternative Water Resources Development, Xi''an 710055, China;5. Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia;6. Department of Civil and Environmental Engineering, Tohoku University, Sendai 9808579, Japan;1. Department of Industrial Engineering, University of Padova, Via Marzolo No.9, 35131, Padova, Italy;2. Department of Civil, Environmental and Architectural Engineering, University of Padova, Via Marzolo No.9, 35131, Padova, Italy |
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| Abstract: | The impact of continuous removal of volatile fatty acids on fermentative hydrogen production from food waste (FW) in a Continuously Stirred Tank Reactor (CSTR) was evaluated. Two experimental phases were conducted, a control phase and one in which volatile fatty acids were removed continuously from the reactor for the first time by electrodialysis (ED). Hydrogen yields were 64.7 cm3 H2/g VS and 227.3 cm3 H2/g VS for control phase, and ED phase respectively. Continuous removal of volatile fatty acids during fermentation not only increased H2 yields but increased the production of volatile fatty acids (a valuable chemical feedstock) from 0.14 g/g VS to 0.34 g/g VS. |
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| Keywords: | Food waste Hydrogen Volatile fatty acids Separation Electrodialysis |
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