RDF Sampling and Analysis: Behind the Scenes with Alfred H Knight
This summer, Powerday visited our state-of-the-art laboratory in Dundonald, Scotland, for a behind-the-scenes look at how representative RDF sampling and analysis help build reliable RDF (Refuse Derived Fuel) data profiles.
With around 16.8 million tonnes of material processed by UK Energy-from-Waste (EfW) facilities each year, operators cannot rely on assumptions; accurate data is essential for efficiency.
During the visit, our experts demonstrated each stage of the sampling and analysis processes. Powerday was shown tailored sampling plans, consistent handling techniques, and clear laboratory workflows. This demonstrated how our quality-driven approach supports reliable waste analysis and highlights how accurate RDF data improves insight across operations.
Watch the full video below.
Supporting Waste Management Companies Through Expert Sample Preparation
The first stage of the journey focuses on sample preparation. While laboratory testing is critical in assessing RDF quality, representative sampling and sample preparation are what make analysis meaningful.
Powerday observed how materials are logged, mixed, shredded, dried, size-reduced and homogenised to create a stable, representative sub-sample. This rigorous process reduces the variance found in heterogeneous waste streams, ensuring that the small portion tested in the lab truly represents the thousands of tonnes processed on-site.
Only once this preparation is complete can our laboratories generate results that accurately reflect the wider waste stream.
Realising the Potential of Alternative Fuels with Analysis
The second stage demonstrates how this prepared sample is turned into actionable data. From calorific value testing to elemental analysis and trace metal extraction, each process provides essential information about fuel behaviour, composition, and quality.
These insights enable Powerday to understand the characteristics of its waste streams better. Crucially, identifying these parameters plays a vital role in protecting EfW assets by helping to prevent corrosion, slagging, and avoidable downtime.
By seeing each process first-hand, Powerday gained a complete picture of how high-quality sampling and accredited analytical methods work together to build a robust waste profile. This supports confident decision-making and provides the insight needed to comply with upcoming UK ETS regulations.
To look at each stage in depth, read our two blogs covering RDF sampling and analysis: