Biogas recovery by anaerobic digestion of Australian agro-industry waste: a review

Tait, Stephan ORCID: https://orcid.org/0000-0002-0816-8911 and Harris, Peter W. and McCabe, Bernadette K. (2021) Biogas recovery by anaerobic digestion of Australian agro-industry waste: a review. Journal of Cleaner Production, 299:126876. ISSN 0959-6526

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Abstract

On-farm, intensive feeding and processing in Australian red meat, dairy and pork industries produce substantial quantities of organic waste (-79 GL annum liquid waste plus - 2 megatonnes annum solid waste) and waste management is a major cost (-180 million Australian dollars. annum for red meat plus dairy processing). Anaerobic digestion can instead extract value from organic waste as biogas energy and biofertiliser to reduce operational costs and environmental impacts, and to improve industry profitability. Understanding key information gaps is a fundamental step towards fully realizing profitable opportunities for anaerobic digestion. This is addressed here via a critical evaluation of available information on Australian agro-industries (specifically dairy, pork and red meat), their waste availability, biogas energy potential, and potential anaerobic digestion approaches. The analysis revealed varying extents of information, but good biogas energy potential (- 13.8 PJ annum) to meet a significant energy demand (-18 PJ annum). Waste management within respective agro-industries influenced waste amounts and characteristics, which affected anaerobic digestion options. Anaerobic co-digestion, involving aggregated digestion of two or more waste types within or across industries, can provide further opportunities by boosting biogas production and harnessing spare digestion capacity. Overall, cross-industry collaboration, policy support and technology development could help harness the significant opportunities for aggregated biogas production in Australian agro-industries.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Agricultural Engineering (1 Aug 2018 -)
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Agricultural Engineering (1 Aug 2018 -)
Date Deposited: 29 Apr 2021 01:43
Last Modified: 22 Oct 2021 04:18
Uncontrolled Keywords: anaerobic co-digestion, dairy waste, pork waste, animal manure, beef feedlot, meat processing
Fields of Research (2008): 09 Engineering > 0907 Environmental Engineering > 090703 Environmental Technologies
Fields of Research (2020): 40 ENGINEERING > 4011 Environmental engineering > 401106 Waste management, reduction, reuse and recycling
40 ENGINEERING > 4011 Environmental engineering > 401102 Environmentally sustainable engineering
Socio-Economic Objectives (2020): 18 ENVIRONMENTAL MANAGEMENT > 1899 Other environmental management > 189999 Other environmental management not elsewhere classified
Identification Number or DOI: https://doi.org/10.1016/j.jclepro.2021.126876
URI: http://eprints.usq.edu.au/id/eprint/41911

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