BP Refinery (Bulwer Island) Ltd (BP) located on the eastern Australian coast is currently undergoing a major expansion as a part of the Queensland Clean Fuels Project. The associated wastewater treatment plant upgrade will provide a better quality of treated effluent than is currently possible with the existing infrastructure, and which will be of a sufficiently high standard to meet not only the requirements of imposed environmental legislation but also BP's environmental objectives. A number of challenges were faced when considering the upgrade, particularly; cost constraints and limited plot space, highly variable wastewater, toxicity issues, and limited available hydraulic head. Sequencing Batch Reactor (SBR) Technology was chosen for the lagoon upgrade based on the following; SBR technology allowed a retro-fit of the existing earthen lagoon without the need for any additional substantial concrete structures, a dual lagoon system allowed partial treatment of wastewaters during construction, SBRs give substantial process flexibility, SBRs have the ability to easily modify process parameters without any physical modifications, and significant cost benefits. This paper presents the background to this application, an outline of laboratory studies carried out on the wastewater and details the full scale design issues and methods for providing a cost effective, efficient treatment system using the existing lagoon system.
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Research Article|
February 01 2001
Sequencing batch reactor technology: the key to a BP refinery (Bulwer Island) upgraded environmental protection system - a low cost lagoon based retro-fit
N. Hudson;
1NJH20 Consultants, PO Box 267, Gatton 4343, QLD, Australia
E-mail: [email protected]
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J. Doyle;
J. Doyle
2Advanced Wastewater Management Centre, The University of Queensland, Australia 4072
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P. Lant;
P. Lant
2Advanced Wastewater Management Centre, The University of Queensland, Australia 4072
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N. Roach;
N. Roach
3EGC Environmental Consultants Pty Ltd, PO Box 2094, Milton 4064, QLD, Australia
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B. de Bruyn;
B. de Bruyn
4BP Refinery (Bulwer Island) Ltd, PO Box 4, Pinkenba 4008, QLD, Australia
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C. Staib
C. Staib
2Advanced Wastewater Management Centre, The University of Queensland, Australia 4072
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Water Sci Technol (2001) 43 (3): 339–346.
Citation
N. Hudson, J. Doyle, P. Lant, N. Roach, B. de Bruyn, C. Staib; Sequencing batch reactor technology: the key to a BP refinery (Bulwer Island) upgraded environmental protection system - a low cost lagoon based retro-fit. Water Sci Technol 1 February 2001; 43 (3): 339–346. doi: https://doi.org/10.2166/wst.2001.0155
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