For decades, PFAS (per- and polyfluoroalkyl substances) were considered “magic molecules.” Since the 1950s, they have been used in cookware, firefighting foams, coatings, textiles, and industrial processes because of their unique properties: non-stick, water-repellent, dirt-repellent, anti-static, and highly stable. Their stability, once seen as a benefit, is now the core of the challenge. PFAS do not break down naturally. They accumulate in soil, in rivers, in plants, and ultimately in our bodies.
Today, stricter regulations and growing awareness are pushing industrial players and municipalities to act. The first priority is clear: wherever possible, industry must stop or significantly reduce the use of PFAS-based products and transition to safer alternatives. Addressing the issue at the source is the most effective way to prevent further environmental and health impacts.
However, legacy contamination remains a reality. For production sites where PFAS are already present, mitigation becomes essential. But where should you start? According to Jean-Luc Maton, Product Manager Specialties at Caldic, the answer is clear: step one is always to analyse your water.
Before discussing technologies, budgets, or timelines, you need data. Many production leads still ask, “What will it cost to remove PFAS?” But without a proper water analysis, this question cannot be answered because PFAS are not a single molecule but a family of thousands of different compounds. They vary in chain length, from short-chain to long-chain, in concentration levels, chemical composition, and the flow rate within production systems, all of which influence how they behave and how they can be detected or treated.
The good news is that water analysis is relatively inexpensive and provides clarity, direction, and control. Once data is available, the next step is to have a plan in place, considering both short-term and long-term strategies. Not every PFAS challenge is the same, and a tailored approach will depend on factors such as treatment duration, concentration levels, budget constraints, operational flexibility, and compliance deadlines.
Short-term projects, such as soil remediation or temporary water treatment, are suitable when treatment duration is limited, PFAS concentrations are moderate, and budget sensitivity is high. In these cases, ion exchange resins are often the most efficient and cost-effective standalone solution. They can capture both long- and short-chain PFAS, perform better than activated carbon for short-chain compounds, whereas activated carbon is highly efficient for long-chain PFAS. In addition, IEX resins generally require a lower upfront investment compared to membrane systems.
Long-term, high-efficiency projects are suitable when treatment runs for several years, compliance requirements are strict, and very low discharge limits must be met. A combined technology approach is often the most effective, using reverse osmosis membranes to concentrate PFAS into a smaller water stream, followed by ion exchange or activated carbon for polishing and ensuring final compliance. This approach provides a balance of performance, operational costs, and long-term sustainability. The key insight is that there is no universal solution; the best approach is always tailored to the specific situation.
Traditional PFAS solutions rely on filtering or trapping the compounds, but none of the available technologies effectively destroy them. Since 2018, Caldic Benelux has built expertise in soil and water remediation; initially for heavy metals, cyanide, and arsenic, and subsequently for PFAS. Our philosophy differs from simply selling a product. “We always start with root-cause analysis, which entails carefully studying the problem first,” says Saeid Hosseini, Industry Leader Water Treatment Europe at Caldic. “We analyse water composition, calculate flow and treatment duration, model cost scenarios, and determine the most suitable technologies when needed. Our goal is always to optimize for compliance and cost while avoiding unnecessary complexity.”
At Caldic, we acknowledge every PFAS project is different. Some require regenerable ion exchangers, others benefit from carbon pre-treatment, and some need membrane concentration with a polishing step. Each PFAS profile calls for a tailored resin chemistry. We also look upstream; reviewing wastewater and sludge processes, to see if PFAS can be captured earlier. The earlier it is addressed, the less strain on downstream systems, making treatment more efficient and sustainable. “At Caldic, we don’t just sell products, we work hand in hand with our clients to deliver practical, tailored solutions,” says Saeid.
PFAS are not acutely toxic in the traditional sense, but they accumulate over time, affecting metabolism, immune response, and long-term health. “Regulations are tightening globally, detection technology is improving, and public awareness is rising,” explains Christophe Mougel, Product Manager at Caldic. “PFAS are already everywhere. Delaying the implementation of solutions increases environmental liability, regulatory risk, future remediation costs, and reputational exposure.”
The PFAS challenge is complex, but the first step is simple: analyse water, build short- and long-term strategies, and work with a partner who understands the full technology landscape. “PFAS management is not about reacting to panic, it’s about acting with precision,” concludes Christophe. With its tailored, data-driven methodology and strong expertise in activated carbon, ion exchange, and membrane technologies, Caldic is well-placed as a strategic partner. With its tailored, data-driven methodology and deep expertise in activated carbon, ion exchange, and membrane technologies, Caldic goes beyond providing products, it delivers complete, precision-engineered PFAS management solutions, positioning itself as a trusted strategic partner in safeguarding water quality.
Get in touch with us today to find out how we can help your organization tackle PFAS challenges efficiently and sustainably.
Today Industries prioritize sustainability and compliance. At Caldic we deliver smart solutions that support cleaner processes and environmental protection, leveraging our formulation expertise and broad portfolio. Together we help you meet compliance, satisfy stakeholders, reduce emissions and operate sustainably.
