The future of waste management lies in improved resource recovery and reuse of organic material. North-West Recycling Centre’s David Murphy explains.
With a target of net zero emissions from organic waste to landfill by 2030, the NSW Government’s Net Zero Emissions Plan is set reshape the state’s organics recovery sector.
The plan outlines a series of targeted actions including supporting best-practice food and green waste management infrastructure, and ensuring compost or other organic soils are of the highest quality for land application.
While ambitious government diversion targets are often meet with cynicism due to end-market constraints, for materials like organics, those constraints are largely absent.
The market for repurposed organic waste is there, with operators across Australia poised to capitalise on heightened support and consumer awareness.
One such operator is David Murphy, who’s North-West Recycling Centre has been providing customers with a smarter alternative to waste management since 1996.
Located in Sydney’s urban fringe, the North-West Recycling Centre team is committed to providing a 360-degree specialist recycling solution for green waste products.
“We strive to provide a new sustainability program to aid government agencies and Australian businesses to reduce their carbon footprint whilst reducing the amount of waste sent to landfill,” Murphy says.
The facility operates as a depot for commercial gardeners, landscapers, local councils, horticulturalists, agriculturalist and those in civil works to manage their waste in a responsible and sustainable manner.
Once organic waste is received, it goes through a 12-week composting process that transforms the material into a range of high-value natural products such as soil conditioners and mulch.
To facilitate this process and eliminate contaminants, North-West Recycling Centre relies on a Komptech Nemus 2700 mobile drum screen, purchased through Australia’s exclusive Komptech distributor CEA.
Murphy explains that throughout his long career in organics processing, he has operated a Nemus screen exclusively.
“I’ve never worked with another drum screen because the Nemus is fantastically reliable. It runs nine and a half hours a day five days a week with minimal downtime,” he says.
Contrary to competitor products, the Nemus leverages an open engine compartment accessible from all sides – adding an extra layer of safety for on-site material management.
The engine unit is also hydraulically extendable, allowing for streamlined oil checks.
Within the drum itself, improved material flow provides up to 10 per cent more throughput than previous models.
Fine particles are discharged by a cross belt, with the one-piece design preventing material trickle at transfer points.
Murphy’s longstanding relationship with the Nemus is mirrored in his relationship with Komptech CEA, who he has been working with for over a decade.
“Anything we need and they’re there. Everything is a matter of urgency for them and they attend to it straight away. Loyalty is the word I would use, we’re very happy with the relationship,” he says.
In addition to the Nemus, North-West Recycling Centre operate a Komptech Crambo 5200 dual-shaft shredder, which features two slow-running drums with shredding tools to minimise fine particle and dust emissions while resisting contraries.
In the extra-large shredding chamber, two 2.8 metre counterrotating toothed drums ensure positive feed.
From bulky branches, cuttings and rootstocks of any size to used wood contaminated with contraries, the Crambo shreds everything down to a defined particle size.
The shredder has helped North-West Recycling Centre’s bottom line, Murphy says, facilitating significant return on investment.
“Environmentally it’s a very efficient machine and the outputs are fantastic. It’s also acoustically impressive and a lot quieter than previous machines we’ve used,” Murphy says.
Powered by a modern Caterpillar engine, the design of the Crambo muffles the engine compartment to keep noise emissions to a minimum.
With load-dependent rotation speed regulation, the hydraulic drum drive ensures that full advantage is taken of the engine output.
Murphy adds that the Crambo requires less maintenance than comparable shredders and is more effective at removing contamination.
“We’re always working to improve the high-quality product that we make, and that’s all about the way we process and remove any contaminants,” he says.
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