An experimental approach to produce hydrogen and methane from food waste using catalyst |
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| Affiliation: | 1. Faculty of Science, Department of Chemistry, Ege University, 35100, Bornova, Izmir, Turkey;2. Center for Environmental Studies, Ege University, 35100, Bornova, Izmir, Turkey;3. Engineering Faculty, Bioengineering Department, Ege University, 35100, Bornova, Izmir, Turkey;1. Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Resources Environmental & Chemical Engineering, Nanchang University, Nanchang, 330031, China;2. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China;3. Key Laboratory of Cleaner Production and Integrated Resource Utilization of China National Light Industry, Beijing Technology and Business University, Beijing, 100048, China;1. College of Engineering, China Agricultural University, Beijing 100083, China;2. College of Agricultural Technology and Fish Science, Al-Neelain University, Khartoum, Sudan;3. State R&D Center for Efficient Production and Comprehensive Utilization of Biobased Gaseous Fuels, Energy Authority, National Development, and Reform Committee (BGFuels), Beijing 100083, China;4. Gruppo Ricicla – DiSAA – University of Milan, Via Celoria 2, 20133 Milano, Italy;1. Institute of Energy and Power Engineering, Zhejiang University of Technology, Hangzhou 310014, China;2. Department of Chemical Engineering, Institut Teknologi Bandung, Bandung 40132, Indonesia;3. Center of Excellence in Environmental Catalysis and Adsorption, Thammasat University, Pathumthani 12120, Thailand;4. Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia |
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| Abstract: | Anaerobic co-digestion of food waste, cow dung, and sludge solution is experimented in the presence of calcium peroxide (CaO2) as the catalyst to produce hydrogen and methane as a source of renewable energy. The substrate to inoculum ratios (v/v) of 1:1(S1), 1:2(S2), 1:3(S3), 1:4(S4) and 1:5(S5) are investigated in separate fermentative and methanogenic reactors. The result from the fermentative reactors indicate maximum hydrogen concentration of 26.34% with cumulative yield of 114.1 mL/g total solid (TS) in S3 compared to the other samples. Methanogenic reaction shows the highest methane concentration of 54.13% in S3. The highest daily (average) and cumulative biogas yield of 5.36 mL/g TS and 201.9 mL/g TS respectively are identified in S3. A maximum carbon dioxide concentration of 63.11% is found in S1. Overall, the substrate to inoculum ratio of 1:3 is spotted to be optimal for effective hydrogen and methane production during the anaerobic co-digestion process. |
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| Keywords: | Anaerobic co-digestion Food waste Cow dung Hydrogen Methane Carbon dioxide |
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