Investigating wastewater modelling as a tool to predict anaerobic decomposition and biogas yield of abattoir effluent

McCabe, Bernadette K. and Hamawand, Ihsan and Baillie, Craig (2013) Investigating wastewater modelling as a tool to predict anaerobic decomposition and biogas yield of abattoir effluent. Journal of Environmental Chemical Engineering, 1 (4). pp. 1375-1379. ISSN 2213-3437

Abstract

Due to the high strength nature of abattoir wastewater, the accumulation of crusts on anaerobic ponds is a systemic problem in the red meat processing industry in Australia and can limit the ability to accurately obtain biogas measurements. In this study, BioWin was used to simulate chemical oxygen demand (COD) removal rates and subsequent biogas production rate based on field data from two abattoirs where crust accumulation was an issue. BioWin is a Microsoft Windows-based simulator developed by EnviroSim Associates Ltd, which has seen use in the design and optimisation of wastewater treatment plants. In assessing overall anaerobic decomposition efficiency it was hypothesised that a large percentage of influent COD was present as a surface crust which remained largely unbiodegradable. Field data effluent COD removal rates were matched to simulated rates predicted by BioWin when measured influent COD was reduced to 30% (absolute relative error of 11–14%), thus supporting the notion that a significant portion of COD is not taking part in the anaerobic digestion process. The simulation provides a preliminary assessment of pond performance in terms of COD removal rates and also subsequent biogas production rates. BioWin was able to predict approximate biogas production rates ranging between 113 to 173 m3/d and 52 m3/d for the two abattoirs investigated. Further work to validate simulation using BioWin includes obtaining actual biogas measurements and performing COD measurement of crust.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2013 Elsevier Ltd. All rights reserved. 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: 21 Apr 2014 04:00
Last Modified: 07 Oct 2014 04:00
Uncontrolled Keywords: BioWin; slaughterhouse wastewater; covered anaerobic pond; treatment efficiency; biogas
Fields of Research : 09 Engineering > 0907 Environmental Engineering > 090702 Environmental Engineering Modelling
10 Technology > 1002 Environmental Biotechnology > 100203 Bioremediation
09 Engineering > 0904 Chemical Engineering > 090410 Water Treatment Processes
Socio-Economic Objective: D Environment > 96 Environment > 9609 Land and Water Management > 960912 Urban and Industrial Water Management
Identification Number or DOI: 10.1016/j.jece.2013.07.015
URI: http://eprints.usq.edu.au/id/eprint/24693

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