MBC in Bacchus Marsh has been operating as a landfill since 1978. Due to the large buffers, potential waste capacity and strategic importance in the acceptance of metal recycling residues the site has been designated by the Government as a waste hub of State significance.
MBC is partnering with IntelliGas http://www.intelligas.com.au a to extract methane from its established landfill and process it to generate electricity, as well as divert waste from landfill using Waste to Energy processes.
IntelliGas is an Australian-owned company with a successful history in Landfill Gas commercialisation, Waste to Energy and the use of Landfill Gas in multiple applications including in displacing diesel in large vehicles including refuse vehicles.
The Waste to Energy industry is well established globally, converting suitable waste to create electricity and heat, substituting the need for coal and other fossil fuels in energy generation.
Investigation of the existing landfill waste stream by MBC and IntelliGas has found that it contains materials such as clean timber and plastic film that are suitable for conversion into a Solid Recovered Fuel (SRF) that can be used to generate electricity.
In addition to the Waste to Energy project for diverting waste from landfill, MBC are also investigating landfill alternatives for municipal wastes. MBCs preferred approach for municipal wastes is to use biological processes to manage food wastes rather than use landfill or the Waste to Energy systems being investigated for the timber and plastic waste streams.
The new landfill cell at MBC is being constructed to manage putrescible waste as well as Commercial and Industrial waste, using a Type 2 liner.
One preferred biological process to divert food and other readily biodegradable materials from landfill is Anaerobic Digestion, which uses micro-organisms to convert the wastes into biogas.
The introduction of Waste to Energy systems at Maddingley will be accompanied by increased waste sorting systems to maximise recovery and recycling rates. Remaining wastes will be landfilled.
All these projects can be operated within the existing buffers that are in place for the current mining and composting activities at the MBC site. The Project is being designed to meet European and Victorian EPA emission targets, as well as community concerns.
The combined benefits of the landfill gas capture and waste to energy projects include:
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