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RESIDUAL WASTE MANAGEMENT - CLEANAWAY

The Cleanaway Resource Recovery Facility at the Wingfield Waste and Recycling Centre - a fully enclosed receival and sorting operation - is designed to process large volumes of material quickly and with a great deal of precision. Where economically viable, recyclable materials are diverted from the waste stream sent to landfill. Waste receipt occurs primarily through general vehicles delivering residual waste material, with specialist machines then positioning and sorting waste, with recyclable materials being separated and on- forwarded for processing.

At the same time, non-recyclable commercial and household waste is loaded into fully enclosed 'walking floor' road trains, situated directly under the sorting floor. The opening roofs on these specially designed transport vehicles allows for material to be loaded in approximately 15 minutes and transported to Inkerman Landfill. These roadtrains sit on weight detection pads under each axle to ensure that the correct load weight is not exceeded.

 

Inkerman - a state-of-the-art landfill facility

Cleanaway's Inkerman Landfill is situated 85 kilometres north from the Adelaide Transfer station and is a direct 'door to door' route on a dual highway. The location and efficiencies of these two facilities set a new benchmark in waste disposal, transportation, landfill design and operation.

Litter and bird pest control, odour and visual amenity are consistent challenges with landfills the world over. At the Inkerman landfill, these issues are managed as the working portion of the landfill is fully encapsulated under a system of moveable netting.

Any litter is quite effectively contained within the netted work zone and is buried when the day's waste placement is covered at the end of each day, eliminating any vermin or odour issues. This system represents best practice technology and was one of the key factors in the Inkerman landfill being awarded a Silver Award at the Waste Management Association of Australia (WMAA) National Landfill Excellence Awards.

The groundbreaking initiatives of the Inkerman Facility do not stop there.

The site is well suited for this type of use because of location, setting, set back from the road, proximity to neighbouring properties, size and geological make up. The availability of on-site clay resources, which are used to line each landfill cell, is a major advantage, saving considerable transportation and handling costs.

Cleanaway has set out to closely manage any foreseeable impacts, by implementing environmental management measures for the design, construction, operation and post-closure of the facility.

This includes the proper handling of a number of issues which include the best practices for the day to day operation of the site, including: regular topographic surveys, stormwater and erosion management, leachate management, landfill gas management, the minimisation of any noise, air emissions, dust, odour, litter control, pest control, fire control, aboriginal heritage protection and post- closure management.

The site must comply with the standing legislation, standards, policies and guidelines and provide the community with total assurance that the management practices of the landfill are conducted with full regard for the environment.

One initiative being introduced at the landfill concerns the use of land not currently being used for landfilling operations. This has been planted out with grain crops to provide additional visual amenity and to vegetate the land, effectively controlling the spread of weeds and pest animals and minimising the possibility of erosion.

Cleanaway has become very effective in diverting waste materials from landfills and continues to adopt and create new initiatives in this area.

  1. The Wingfield Resource Recovery Centre is fully enclosed and part of a major recycling precinct.
  2. Specialist netting is erected over the work surface at the Inkerman Landfill
  3. Heavy machinery places and compacts clay lining to a new landfill cell
  4. A 52-tonne machine compacts the waste material under nets and it is then covered with earth at the end of each day
  5. Heavy machinery places and compacts the clay which is important in landfill construction. The material is found on the site and no additional transportation is required
  6. The moveable netting system represents landfill technology at its best
  7. Clay is placed and water added to ensure a sound watertight base and sides to the landfill cells.

Some of the technologies that make the Inkerman Landfill an example within the Australian industry.  Best practice technologies were used in every area of development at the Inkerman Landfill- including:

  • Best Practice containment and environmental control systems
  • Engineering grade, site based, GPS system
  • Automated weighbridge recording systems with video surveillance
  • A double configuration road train transfer system with specialist 'walking floor' trailers, achieving large payloads in a single movement, which maximises transport efficiencies
  • Australia's first high efficiency litter and bird control system, and
  • Continuous improvement, innovation and development initiatives.

For more information about Cleanaway, visit its website

 

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The Wingfield Waste & Recycling Centre is a
world-class resource recovery and waste recycling operation that contains a collaborative cluster of commercial businesses on a common 94ha site.