Who We Are
Onterris is a global environmental solutions company partnering with organizations to solve complex challenges where environmental pressures, regulatory expectations and operational risks intersect.
Sectors
Access deep environmental expertise tailored to your industry, with solutions built for real-world conditions.
Solutions
Prepare for escalating environmental risks with expert solutions designed to perform under pressure.
Our Thinking
Explore briefs, perspectives and articles that turn insight into action. Discover thought leadership that informs decisions and drives impact. See the ideas shaping environmental solutions and guiding your next move.
Cuture & Careers
Where brilliant people come together to turn environmental science into real-world progress for communities, industry and the planet.

FOAM-X™

Foam fractionation for landfill leachate PFAS treatment
Engineered treatment systems and field validation services supporting reliable water and environmental remediation outcomes.
INTRO

Restoring Control Over PFAS in Landfill Leachate

Per- and polyfluoroalkyl substances (PFAS) in landfill leachate can affect far more than treatment performance. They can shape discharge strategy, residuals management, compliance planning and long-term site stewardship. Onterris helps landfill operators respond with science-led treatment planning, integrated testing and treatment capabilities, and FOAM-X technology that supports stronger performance under complex leachate conditions.

Supporting Your Industry

Water challenges vary across sectors and geographies, and our experts help identify the right solutions for your specific needs
why it matters

Advancing PFAS treatment for long-term landfill performance

  • PFAS in landfill leachate can complicate discharge, compliance and residuals management
  • Complex leachate chemistry can increase treatment difficulty, cost and operating burden
  • FOAM-X can help concentrate PFAS while reducing residual waste and treatment footprint
  • Treatment decisions can influence closure planning, remediation strategy and long-term stewardship
  • Clear technical direction helps strengthen regulator and stakeholder confidence

Improving leachate treatment strategy under complex PFAS conditions

Onterris supports landfill operators with treatment approaches built around challenging leachate chemistry, evolving regulatory expectations and long-term site objectives. Our work helps reduce treatment burden, improve residual management and align PFAS response strategies with broader landfill operations and planning.
Our Capabilities

Delivering technical capabilities for complex PFAS leachate management

PFAS concentration
Residual reduction
Foam fractionation
Leachate treatment optimization
Downstream destruction integration
Pilot testing

Related Solutions

Explore Related Insights

Industrial PFAS Treatment: From Pilot to Full Scale

Learn how industrial operators can characterize PFAS, pilot treatment technologies and scale solutions for complex wastewater and short-chain PFAS.

Decommissioning a Legacy Textile Site With Reliable PFAS Wastewater Treatment

Reliable commissioning and remote support maintained steady treatment performance in complex lagoon water as the site progressed toward closure

Protecting Drinking Water for Pender County: Turning PFAS Uncertainty Into a Long-Term Plan

Creating a reliable testing and treatment roadmap that supports capital planning for long-term safe drinking water