Cleaning up a legacy stockpile

Cleaning up a legacy stockpile

Tyrecycle’s Jim Fairweather explains the strategic planning required to clean up one of Australia’s largest tyre stockpiles in regional Victoria.

One of Australia’s largest tyre stockpiles, located within metres of homes and businesses in Victoria, was this year cleaned up by the Victorian Government.

The government at the end of last year appointed Tyrecycle, one of the country’s most experienced tyre recyclers, for the clean-up operation, with the site now deemed safe.

Over 44 operational days, Tyrecycle removed a 5200 tonne stockpile, equivalent to 500,000 tyres, at Numurkah near Shepparton, which posed an extreme fire, health and safety risk to local residents. The total transformation of the site saw 334 truckloads of tyre waste removed over this period.

The company worked closely with Moira Shire Council along with the Environment Protection Authority (EPA), which used its powers to enter the site late last year under the Environment Protection Act 1970.

The EPA introduced tighter controls for waste tyre storage in 2015, prompting a significant reduction in the number of known stockpiles across Victoria, with Numurkah being one of the legacy sites.

The Environment Protection Act 1970 requires scheduled premises to be licensed, with requirements for onsite firefighting resources, limits on the size of the piles and minimum distances between and around them. Stockpiles of more than 40 tonnes or 5000 equivalent passenger car units of waste tyres are scheduled premises under the regulations.

EPA CEO Dr Cathy Wilkinson said the site was an unacceptable fire, environmental and human health risk.

Tyrecycle began work on cleaning up the site in December 2018 under the control and guidance of the EPA and Moira Shire Council.

Jim Fairweather, Tyrecycle CEO, says that the company was transporting 125 tonnes of end-of-life tyres per day from Numurkah to Tyrecycle’s EPA-licensed processing facility in Melbourne at Somerton, where they were cleaned, sorted and shredded for recycling.

“Tyrecycle ramped up its Melbourne facility to a 24/7 operation for the project and doubled its processing capability to remove the huge amount of waste tyres in the most efficient and time effective way,” Jim says.

“We increased our staffing levels to handle the waste, with most of each delivery being processed within 24 hours.”

According to the CFA and EPA, the consequences of a fire at the Numurkah site would have been catastrophic to the local community with air quality impacted and the contamination of soil, groundwater and surface waters.

“It was a great outcome for the local residents, to help them feel safe again after a decade of uncertainty. It was made possible due to the collaborative efforts between the Victorian Government, authorities and industry – working together,” Jim says.

The EPA conducted site inspections at Tyrecycle’s Somerton facility during the transportation and processing phase of the waste tyres from Numurkah.

Jim says that Tyrecycle is proudly the only EPA-licensed collector and recycler of tyres in Victoria and all environmental regulations were met during the project.

“Our planning procedures are thorough, including specific transportation schedules for the collection and arrival of waste.”

He says that the conditions were extremely challenging and strategic planning is required to begin a clean-up operation especially of this magnitude.

“Firefighting equipment is always onsite. However, when temperatures went to 40 degrees or if there was a total fire ban, all work ceased as the searing weather conditions resulted in an unsafe working environment.

“Fire safety preparation is paramount during a clean-up, as well as heightened security and effective management of any wildlife and vermin on site. With careful planning and protocols, we were pleased to deliver an incident-free project.”

The majority of the shredded and recycled waste tyres were converted into tyre-derived fuel (TDF), helping companies reduce their environmental footprint across South-East Asia.

“TDF is an attractive alternative fuel on an international scale. The extremely high calorific value of the product has significantly lower volumes of greenhouse gases when compared with coal,” Jim says.

The recycled tyre waste from the Numurkah site is also being used for a variety of products across the construction, manufacturing and automotive industries, including crumbed rubber for road surfacing, athletics tracks and brake pads.

Tyrecycle also worked with the EPA in Victoria in 2017 to remove another dangerous and large tyre stockpile on the outskirts of Stawell.

During a clean-up operation lasting just over two months, 9500 tonnes of tyres which had been stockpiled for many years were removed, with more than two-thirds of the tyres transported to Tyrecycle’s Melbourne facility for processing and recycling.

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