Leveraging food waste for electricity: A low-carbon approach in energy sector for mitigating climate change and achieving net zero emission in Hong Kong (China).

Autor: Kurniawan TA; College of the Environment and Ecology, Xiamen University, Xiamen, 361102, Fujian, PR China. Electronic address: tonni@xmu.edu.cn., Liang X; School of Electrical Engineering, Guangxi University, Nanning, 530004, Guangxi, PR China., Goh HH; School of Electrical Engineering, Guangxi University, Nanning, 530004, Guangxi, PR China. Electronic address: hhgoh@gxu.edu.cn., Dzarfan Othman MH; Advanced Membrane Technology Research Centre, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia., Anouzla A; Laboratory of Process Engineering and Environment, Faculty of Science and Technology, Hassan II University, Mohammedia, 28806, Morocco., Al-Hazmi HE; Department of Sanitary Engineering, Faculty of Civil and Environmental Engineering, Gdańsk University of Technology, Gdańsk, Poland., Chew KW; School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore 637459, Singapore., Aziz F; Laboratory of Water, Biodiversity & Climate Changes, Faculty of Science Semlalia, Cadi Ayyad University, BP 2390, 40000, Marrakech, Morocco., Ali I; Department of Chemistry, Jamia Millia Islamia, Jamia Nagar, New Delhi, 110025, India.
Jazyk: angličtina
Zdroj: Journal of environmental management [J Environ Manage] 2024 Feb; Vol. 351, pp. 119879. Date of Electronic Publication: 2023 Dec 29.
DOI: 10.1016/j.jenvman.2023.119879
Abstrakt: In recent years, food waste has been a global concern that contributes to climate change. To deal with the rising impacts of climate change, in Hong Kong, food waste is converted into electricity in the framework of low-carbon approach. This work provides an overview of the conversion of food waste into electricity to achieve carbon neutrality. The production of methane and electricity from waste-to-energy (WTE) conversion are determined. Potential income from its sale and environmental benefits are also assessed quantitatively and qualitatively. It was found that the electricity generation from the food waste could reach 4.33 × 10 9 kWh annually, avoiding equivalent electricity charge worth USD 3.46 × 10 9 annually (based on US' 8/kWh). An equivalent CO 2 mitigation of 9.9 × 10 8  kg annually was attained. The revenue from its electricity sale in market was USD 1.44×10 9 in the 1 st year and USD 4.24 ×10 9 in the 15 th year, respectively, according to the projected CH 4 and electricity generation. The modelling study indicated that the electricity production is 0.8 kWh/kg of landfilled waste. The food waste could produce electricity as low as US' 8 per kW ∙ h. In spite of its promising results, there are techno-economic bottlenecks in commercial scale production and its application at comparable costs to conventional fossil fuels. Issues such as high GHG emissions and high production costs have been determined to be resolved later. Overall, this work not only leads to GHG avoidance, but also diversifies energy supply in providing power for homes in the future.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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