Case Study

PFAS Treatment at Stena Recycling

At Stena Recycling in Halmstad, Helios Innovations operates Europe’s only dedicated facility for treating highly contaminated PFAS water streams — an innovation platform that turns discarded firefighting foam and extinguishing water into clean water.

Halmstad, Sweden

Stena Recycling Waste Management
Challenge

Discarded firefighting foam is over 97% water but contains highly persistent PFAS chemicals requiring specialist handling. Previously, entire water volumes were sent for high-temperature incineration at significant cost — with no local treatment alternative available.

Solution

A dedicated PFAS treatment facility powered by residual heat, concentrating contaminants so that only the concentrate requires destruction — while serving as an innovation centre for optimising PFAS purification technology.

Stena Recycling

1,500 m³

PFAS water treated per year

90%

waste volume reduction

30%

lower costs vs. full incineration

5 m³/day

treatment capacity

2024

production start

Results

What We Achieved

Reduced Costs

Only the concentrate is sent for high-temperature incineration, cutting treatment costs by approximately 30% compared to incinerating the full water volume.

Reduced Waste Volumes

90% of the PFAS-contaminated water becomes clean water, drastically reducing the volume that needs to be destroyed.

Central PFAS Hub

Through the partnership with Stena Recycling, the facility serves as a hub where industrial PFAS-contaminated water from multiple operators across Sweden and the Nordics can be collected and safely treated.

Looking Ahead

Scaling PFAS Treatment Across Europe

The partnership with Stena Recycling enables secure, local, and energy-efficient PFAS treatment while Helios continues to develop the technology in practical operation.

The facility demonstrates how PFAS-contaminated water can be handled safely, locally, and energy-efficiently — a model that can be replicated at industrial sites across Europe as PFAS regulations tighten.

Why This Matters

The PFAS Challenge

47–100%

Waterways exceeding PFOS limits

470 t

PFAS released annually in the EU

60%

EU firefighting foam contains PFAS

Need Help with PFAS-Contaminated Water?

Get in touch to discuss how Helios can treat your PFAS water streams safely and cost-effectively.