ALS2 powers closed-loop supply chains across the electronics sector

Australia's love affair with the latest smartphone, laptop, and gaming console is generating an e-waste mountain that grows heavier by the day. From suburban garages in Brisbane to corporate IT departments in Sydney's CBD, discarded electronics pile up faster than councils can process them. The federal National Television and Computer Recycling Scheme has given the country a structured framework for managing the flow, yet the real opportunity sits deeper: in the gold, silver, palladium, and copper threaded through every circuit board.

Enter the ALS2 Project, an acidless separation technology developed by Ikoi S.p.A. under the European Union's Horizon 2020 research and innovation programme. Rather than dissolving precious metals in aggressive acids, ALS2 uses a hydrometallurgical-free pathway to liberate and concentrate target elements from printed circuit boards, connectors, and integrated circuits. The result is a cleaner, safer route to urban mining that aligns neatly with circular economy objectives.

For Australian operators weighing investments in materials recovery, ALS2 offers a compact unit that slots into regional processing hubs. Whether paired with existing shredding lines in Melbourne or deployed at new collection points in regional Western Australia, the technology promises to keep valuable metals circulating inside domestic and international supply loops rather than slipping through informal export channels.

Urban mining down under: an untapped reserve

Australia's mining identity is deeply rooted in Kalgoorlie's golden mile and the silver-lead veins around Broken Hill. Yet a parallel resource sits quietly in office towers, schools, and homes. The federal Department of Climate Change, Energy, the Environment and Water has flagged that Australians generate roughly twenty kilograms of e-waste per person each year, much of which still ends up in landfill or shipped abroad under questionable pretexts.

The term "urban mining" captures the idea that decommissioned electronics function as above-ground ore bodies. A single tonne of printed circuit boards can hold more gold than a tonne of typical gold ore. Recovering those metals domestically reduces reliance on imported bullion, stabilises supply against geopolitical wobbles, and shrinks the carbon bill tied to long-distance shipping. It also addresses a growing community concern: nobody wants another heap of toxic leachate seeping into a wetland.

New South Wales and Victoria have tightened landfill bans on e-waste over recent years, nudging councils and commercial operators toward certified recyclers. State-based stewardship schemes like TechCollect and the Mobile Muster programme give households an easy drop-off, but the downstream processing capacity remains thin. Closing that gap requires technology that is compact, scalable, and gentle enough to operate near population centres without drawing noise or safety complaints.

Inside the acidless separation pathway

Traditional precious-metals refining leans heavily on aqua regia, cyanide leaching, or strong mineral acids. These reagents work, yet they come bundled with worker exposure risks, wastewater treatment costs, and permitting headaches. ALS2 takes a different tack, employing a sequence of mechanical, thermal, and electrochemical steps that selectively target metals without dousing feedstocks in corrosive baths.

The system's modular design means a single line can process anywhere from a few hundred kilograms to several tonnes of e-scrap per shift. Australian operators looking to retrofit existing facilities appreciate that the unit does not require large bunded acid tanks or scrubber stacks. Engineers can plumb it into a shed in Ballarat or a logistics park in Perth with far less civil works than a conventional refinery.

Quality control matters before any expansion. Project engineers have documented the suite of what lab tests are required before scaling up ALS2 throughput, covering assays, particle-size distribution, and trace impurity mapping. Those checkpoints give recyclers confidence that the upgraded line will perform to spec once commissioned.

Closing the loop, not just the lid

A closed-loop supply chain does more than recycle materials; it ensures that recovered inputs re-enter manufacturing with enough purity to substitute virgin feedstock. ALS2 is engineered around that principle. Output streams concentrate precious metals to grades that smelters and electronics manufacturers can accept without re-refining to higher specifications.

This matters for brands under growing scrutiny from consumers and regulators alike. The European Union's Right to Repair directives, mirrored loosely in Australia's Productivity Commission reviews, push producers to design for disassembly and material recovery. When a recovery line yields metals that match foundry-grade inputs, the loop is genuinely closed rather than merely redirected to lower-value applications.

The technology also enables shorter shipping distances. Recovered material from a Sydney collection point can travel to a local processor and back to a manufacturer without crossing multiple borders. That local-for-local logic reduces freight emissions and aligns with state procurement policies that favour recycled content in government hardware tenders.

Precious metals in the age of shortage

Copper, gold, silver, and palladium sit at the heart of every smartphone, EV charging station, and 5G base station. Global supply remains tight, with gold and silver spot prices swinging on the back of investor sentiment and central bank moves. Analysts at the Perth Mint frequently remind investors that electronics now consume a meaningful share of annual silver output, competing with photography, jewellery, and coinage.

By sourcing these metals from end-of-life electronics, ALS2-supported facilities help decouple manufacturers from primary mine output. Australian projects benefit from this decoupling too: the country's gold mining sector exports heavily to Asian markets, but domestic manufacturing still imports refined bullion. A robust secondary supply stream built around e-waste would ease that import dependence and offer manufacturers a verifiable chain of custody.

Battery recycling has grabbed headlines, yet the PCB stream is often richer in gold and silver per kilogram. ALS2's selectivity makes it well-suited to those boards, including legacy telecommunications gear, automotive ECU clusters, and industrial control modules heading to retirement as factories modernise.

Fitting into Australia's recycling backbone

Australian recyclers operate within a fragmented landscape. NSW hosts large facilities under the NSW EPA framework, while Queensland leans on private operators supported by the state's waste levy. South Australia and Tasmania have smaller, regionally focused players. Adding ALS2 units to this patchwork is less about replacing existing infrastructure and more about upgrading the downstream end of the chain.

Companies like TES-AMM Australia, Envirostream, and a growing cohort of certified social enterprises already handle collection, sorting, and initial shredding. They typically ship concentrated fractions overseas for final refining, which adds cost and weakens transparency. Bringing ALS2 onto Australian soil lets those organisations keep more value onshore, with cleaner environmental reporting under the National Pollutant Inventory and easier alignment with the Modern Slavery Act's supply-chain disclosure expectations.

For regional councils from Cairns to Hobart, the technology's compact footprint opens doors to local processing hubs that once made no economic sense. A council that handles fifty tonnes a month of small appliances and IT gear can justify a shared ALS2 installation, splitting operating costs and creating skilled jobs in communities that have watched traditional manufacturing drift offshore.

Comparing ALS2 with conventional acid-based refining

The table below summarises how the acidless separation pathway stacks up against traditional refining across the criteria that matter most to Australian operators weighing site selection and compliance budgets.

Parameter	Conventional acid refining	ALS2 acidless separation
Primary reagents	Aqua regia, nitric acid, cyanide	Mechanical, thermal, electrochemical stages
Worker exposure profile	High, requires full PPE and scrubber systems	Lower, standard industrial PPE sufficient
Wastewater treatment load	Heavy acid neutralisation and metal precipitation	Minimal acidic effluent, lower sludge volume
Plant footprint	Large bunded tanks, scrubber stacks, extensive civils	Modular unit, fits into existing sheds
Permitting complexity	Significant, with ongoing air and water monitoring	Streamlined, fewer controlled emissions
Output purity for Au, Ag, Pd	High, well-established	High, designed for foundry-grade inputs
Suitability for urban sites	Limited by emissions and noise	Strong, suitable for industrial parks near cities

Acid-based plants earn their keep on throughput but pay heavily in environmental overhead. ALS2 trades a sliver of throughput flexibility for a dramatic cut in compliance burden, which makes it a better fit for Australian operators working closer to population centres and under tighter state-level scrutiny.

The next phase for ALS2 in Australia hinges on demonstration projects that pair European engineering know-how with local operational expertise. Pilot deployments in Perth, Adelaide, and the Greater Sydney region would generate the performance data local investors and regulators want to see, while creating templates for regional rollout.

Engagement with CSIRO and universities including UNSW, Monash, and Curtin could accelerate process optimisation for Australian feedstocks, which often differ from European inputs in alloy composition and contamination profiles. Those partnerships would also train the next generation of process engineers, hydrometallurgists, and circular-economy specialists the sector desperately needs.

Producers and recyclers ready to act now can connect with the ALS2 Project team to scope a deployment tailored to their throughput, feedstock mix, and site constraints. Early adopters will help shape the technology's evolution while securing first-mover advantage in a market where the next tonne of recovered gold might just come from yesterday's discarded laptop. Fair dinkum opportunities like this don't sit on the shelf for long.