A case study for biogas generation from covered anaerobic ponds treating abattoir wastewater: investigation of pond performance and potential biogas production

McCabe, Bernadette K. and Hamawand, Ihsan and Harris, Peter and Baillie, Craig and Yusaf, Talal (2014) A case study for biogas generation from covered anaerobic ponds treating abattoir wastewater: investigation of pond performance and potential biogas production. Applied Energy, 114. pp. 798-808. ISSN 0306-2619

Abstract

Covered anaerobic ponds offer significant advantages to the red meat processing industry by capturing methane rich gas as a fuel source for bioenergy while reducing greenhouse gas emissions (GHG). This paper presents the results of a novel-designed anaerobic pond system at an Australian abattoir in relation to pond performance and potential biogas production. Key findings in assessing the effectiveness of the system revealed that the covered ponds are capable of efficient wastewater decomposition and biogas production. The primary issue with the covered ponds at the abattoir was the build-up of fat/crust that prevented the accurate measurement of biogas and effective use of the cover. In the absence of field biogas data the novel application of the computer modelling software BioWin® was carried out to simulate chemical oxygen demand(COD) removal rates and subsequent biogas yield. The unique parameter used to fit field data was the fraction of the inlet COD due to a superficial crust which did not follow anaerobic digestion. Field data effluent COD removal rates were matched to simulated rates predicted by BioWin when measured influent COD was reduced to 30%. Biogas modelling results suggest significant variation in the economic benefit of biogas energy, with the quantity of biogas potentially varying tenfold (from 328 m3/d to 3284 m3/d) depending on site factors such as pond efficiency, pond configuration and operational practices.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Crown Copyright © 2013. Permanent restricted access to Published Version due to publisher copyright policy.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Agricultural, Computational and Environmental Sciences
Date Deposited: 06 Nov 2013 23:29
Last Modified: 22 Sep 2017 01:26
Uncontrolled Keywords: anaerobic digestion; biogas; BioWin; modelling; slaughterhouse; abattoir; wastewater
Fields of Research : 09 Engineering > 0904 Chemical Engineering > 090409 Wastewater Treatment Processes
10 Technology > 1003 Industrial Biotechnology > 100305 Industrial Microbiology (incl. Biofeedstocks)
09 Engineering > 0906 Electrical and Electronic Engineering > 090608 Renewable Power and Energy Systems Engineering (excl. Solar Cells)
Socio-Economic Objective: B Economic Development > 85 Energy > 8505 Renewable Energy > 850599 Renewable Energy not elsewhere classified
D Environment > 96 Environment > 9609 Land and Water Management > 960912 Urban and Industrial Water Management
Identification Number or DOI: 10.1016/j.apenergy.2013.10.020
URI: http://eprints.usq.edu.au/id/eprint/24242

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