The Current Status, Potential Benefits and Future Prospects of the Australian Biogas Sector

• 作者: Tien Ngo Andrew S. Ball Esmaeil Shahsavari
• 来源期刊: 可持续生物质能源系统(英文)
• 学科: 地球科学
• 关键词: Anaerobic Digestion Biogas Sector BIOGAS METHANE Renewable Energy GHG Emission GHG Saving
• 年，卷（期）: 2021,（1）
• 页码范围: 14-32
• 页数: 19页
• 分类号: X70

摘要

Anaerobic digestion technology provides a new approach to treat organic waste while generating </span><span style="font-family:Verdana;">greenhouse gas</span><span style="font-family:""> </span><span style="font-family:Verdana;">(</span><span style="font-family:Verdana;">GHG</span><span style="font-family:Verdana;">)</span><span style="font-family:""><span style="font-family:Verdana;"> savings. Moreover, the methane gas produced during the process can be used to generate electricity. </span><span style="font-family:Verdana;">In order to</span><span style="font-family:Verdana;"> ensure that Australia stays on its trajectory towards a </span><span style="font-family:Verdana;">carbon neutral</span><span style="font-family:Verdana;"> future, the use of anaerobic digestion technology to treat its abundant organic waste streams should be considered</span></span><span style="font-family:Verdana;">. </span><span style="font-family:Verdana;">Thirty million tonnes</span><span style="font-family:""> </span><span style="font-family:Verdana;">(</span><span style="font-family:Verdana;">Mt</span><span style="font-family:Verdana;">)</span><span style="font-family:Verdana;"> of organic waste was produced in 2017. The use of anaerobic digestion to treat 1 tonne of waste could result in </span><span style="font-family:""><span style="font-family:Verdana;">0.143 </span><span style="font-family:Verdana;">tonne</span><span style="font-family:Verdana;"> of CO</span>_{<span style="font-family:Verdana;">2</span>}<span style="font-family:Verdana;">-e in GHG saving</span></span><span style="font-family:Verdana;">s</span><span style="font-family:""><span style="font-family:Verdana;">. In contrast, other more widely employed waste disposal methods such as landfilling, composting </span><span style="font-family:Verdana;">and</span><span style="font-family:Verdana;"> incineration may generate GHG emissions. Additionally, the use of methane for electricity production also generates the least GHG emissions per MWh. This is </span><span s