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Estimation of the sustainable production of gaseous biofuels, generation of electricity, and reduction of greenhouse gas emissions using food waste in anaerobic digesters

journal contribution
posted on 17.11.2021, 01:01 by HM Mahmudul, Delwar AkbarDelwar Akbar, Mohammad RasulMohammad Rasul, Ramadas NarayananRamadas Narayanan, M Mofijur
Food waste is a type of organic waste generated by restaurants, food processing plants, households, and commercial and institutions. This study aims to assess the sustainable biofuel, electricity production and greenhouse gas emission reduction potential of food waste using anaerobic digestion technology. Food waste data was collected from the Australian government database to estimate the biomethane and biogas yield and to evaluate the opportunities to convert the biomethane into electricity and heat. This study found that food waste can yield 47% biomethane and hence for Australia, an estimated total of 0.07 million m3 to 1.54 million m3 of biogas can be produced and up to 414,898 tonnes of greenhouse gas emissions reduced annually. The study also estimated that the generated biogas can replace fossil fuel-based electricity generation of up to 52.36 GW and 554.4 TJ heat per year. The environmental assessment indicated that the complete conversion of food waste can lower greenhouse gas emissions (GHG) by up to 5,07,434 tonnes per year and Australia can earn about $52.38 M revenue from electricity production. Therefore, conversion of food waste into biofuel through the anaerobic digestion process can play a significant role in generating electricity from non-fossil-based sources, reducing GHG emissions and earning revenue.

History

Volume

310

Issue

Part A

Start Page

1

End Page

7

Number of Pages

7

eISSN

1873-7153

ISSN

0016-2361

Publisher

Elsevier

Language

en

Peer Reviewed

Yes

Open Access

No

Acceptance Date

19/10/2021

External Author Affiliations

University of Technology Sydney

Era Eligible

Yes

Journal

Fuel

Article Number

122346