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On-site PFAS destruction in complex landfill leachate

On-site PFAS destruction in complex landfill leachate


PFASuiki demonstrates the power of electrochemical oxidation by achieving high destruction rates in one of Italy’s most challenging landfill environments.

Since our initial introduction of PFASuiki’s electrochemical oxidation (EO) technology, the global regulatory landscape has shifted. The focus for industrial operators is no longer just removal, but route stability. As landfill and industrial operators face tightening acceptance criteria for secondary waste, the need to close the PFAS mass balance on-site has become an operational necessity.

PFASuiki is now moving from laboratory innovation to real-world impact. By deploying our modular systems directly into complex industrial streams, we are proving that ‘forever chemicals’ can be terminated at the source, even in the most demanding matrices.

Case study: PFAS destruction in landfill leachate (Italy)

Context and challenge

Landfill leachate is one of the most demanding PFAS treatment environments. At this specific site in Italy, the leachate contained a complex mixture of PFAS species alongside high organic load, salinity, and competing ions. These conditions typically limit the effectiveness of conventional treatment technologies.

Operators at such sites face a fundamental challenge: under the Landfill Directive and the Industrial Emissions Directive, regulatory scrutiny is increasing. The question is no longer just how to treat the water, but how to do so without simply transferring the hazardous burden to a secondary waste stream.

Why conventional approaches fall short

In a matrix as complex as Italian landfill leachate, conventional approaches struggle:

  • Adsorption (GAC/IX): These transfer PFAS into solid waste, requiring frequent media replacement and expensive hazardous waste disposal.
  • Membrane systems (RO/NF): These concentrate the problem into highly contaminated reject streams that still require an endpoint.
  • Incineration: While effective for destruction, the logistical burden and soaring costs of hazardous waste transport make it an increasingly unsustainable option for many operators.

The PFASuiki approach

PFASuiki applied electrochemical oxidation directly to the raw leachate. Our system was configured to leverage the high-conductivity conditions of the site to degrade multiple PFAS species simultaneously. By adjusting key parameters – including current density, flow rates, and residence time – the process was tuned to handle the variable and inhibitory composition of the Italian leachate.

Results: Breaking the concentration trap

The results confirm that electrochemical mineralisation is not just a lab-scale promise, but a viable industrial pathway for complex leachate.

Key performance outcomes included:

  • Broad-spectrum degradation: The system achieved consistent degradation across multiple PFAS species, proving that the technology targets the carbon-fluorine bond generally rather than focusing only on specific compounds.
  • Tunable dynamics: Performance scaled predictably with energy input and residence time, allowing operators to balance treatment speed with energy efficiency.
  • Energy efficiency: Despite the high organic load, energy demand remained in the range of ~20–60 kWh/m³/order (depending on the specific PFAS species), demonstrating a clear pathway to economic viability.

Summary and implications: A future-ready solution

This case study demonstrates that on-site destruction is possible in even the most inhibitory waste streams. By eliminating PFAS at the source, operators can simplify their treatment trains, reduce their reliance on third-party disposal outlets, and reclaim endpoint sovereignty.

As the industry moves toward the 2026 regulatory milestones, the focus is shifting from simple containment to irreversible transformation. PFASuiki’s work in Italy provides a practical roadmap for landfill operators to stabilise their operations, reduce long-term liability, and finally break the chain of forever chemicals.

Strategic conclusion: Secure your license to operate

The 2026 regulatory shift is turning leachate residuals into highly regulated waste. Relying on separate and relocated strategies is no longer enough to manage the long-term liability of PFAS.

This Italian case study proves that on-site mineralisation is a practical, scalable reality. By integrating destruction today, operators can stabilise their OpEx and ensure their facility remains compliant in a shifting legal landscape.

Partner with PFASuiki for a feasibility study

We are currently selecting a limited number of industrial and landfill partners for our 2026 Pilot Program. Are you ready to stop moving your PFAS problem and start solving it?

Contact our team today to discuss your site-specific data and schedule a technical consultation.


Please Note: This is a Commercial Profile

This article will feature in our upcoming PFAS Special Focus Publication.



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