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标题：The Current Status, Potential Benefits and Future Prospects of the Australian Biogas Sector
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作者：Tien Ngo ; Andrew S. Ball ; Esmaeil Shahsavari 等
期刊名称：Journal of Sustainable Bioenergy Systems
印刷版ISSN：2165-400X
电子版ISSN：2165-4018
出版年度：2021
卷号：11
期号：1
页码：14-32
DOI：10.4236/jsbs.2021.111002
语种：English
出版社：Scientific Research Publishing
摘要：Anaerobic digestion technology provides a new approach to treat organic waste while generating greenhouse gas (GHG) savings. Moreover, the methane gas produced during the process can be used to generate electricity. In order to ensure that Australia stays on its trajectory towards a carbon neutral future, the use of anaerobic digestion technology to treat its abundant organic waste streams should be considered. Thirty million tonnes (Mt) of organic waste was produced in 2017. The use of anaerobic digestion to treat 1 tonne of waste could result in 0.143 tonne of CO2-e in GHG savings. In contrast, other more widely employed waste disposal methods such as landfilling, composting and incineration may generate GHG emissions. Additionally, the use of methane for electricity production also generates the least GHG emissions per MWh. This is approximately 3 times lower than crude oil, 4 times lower than black coal and 5 times lower than brown coal. However, the adoption and implementation of anaerobic digestion technology in Australia face several immediate constraints. Firstly, anaerobic digestion technology is deemed unprofitable, incurring high initial capital cost, operating costs and extremely long payback periods. Secondly, there is a lack of government support in terms of a national target for biogas production via anaerobic digestion. This review will provide an in-depth analysis into the current state of the Australian biogas sector. In addition, the review discusses the opportunities to make anaerobic digestion technology more financially viable and to accelerate the growth of the Australian biogas sector.
关键词：Anaerobic Digestion;Biogas Sector;Biogas;Methane;Renewable Energy;GHG Emission;GHG Saving