EFW Plant Visit in the UK

Today, the AKSA Process team visited an Energy-from-Waste (EFW) facility in the United Kingdom to conduct an on-site technical review of the plant’s key operational stages. During the visit, we examined the waste reception line, combustion process, bottom-ash metal recovery systems, and the overall energy-generation flow.

Together with the plant’s engineering team, we evaluated the current separation performance, metal-recovery efficiency, and maintenance-operations constraints from a technical standpoint.

Assessment of the Waste Reception and Feed Line

Our visit began with an inspection of the waste reception area and the feed

system supplying material into the combustion unit. At this stage, we reviewed:

• The composition and variability of incoming waste

• The presence and distribution of tramp metals

• Potential points for improving magnetic separation efficiency

• Opportunities for integrating higher-intensity ferrous removal systems

Understanding the material flow here is essential, as metal contamination at this point directly affects downstream separation quality.

Combustion Process and Heat-Recovery Evaluation

During the combustion-line review, we examined furnace temperature profiles, grate movement behavior, and heat-recovery performance. The characteristics of combustion residue (bottom ash) were evaluated in detail, as the particle size, mineral structure, and oxidation level all influence magnetic separation efficiency in the ash-handling stage.

Bottom-Ash Metal Recovery Systems

Metal recovery from bottom ash is critical for both process efficiency and revenue generation. At this stage, we assessed:

• The consistency and depth of magnetic fields on the installed ferrous separators

• Eddy current separator performance for non-ferrous metals

• Recovery rates for fine fractions

• Wear conditions, maintenance cycles, and potential performance losses due to component degradation

These evaluations help identify where engineering upgrades could increase precision and overall recovery rates.

Engineering Optimisation Options Under Review

Following the technical assessment, the AKSA Process engineering team is now reviewing possible improvements, including:

• Enhancing precision in ferrous and non-ferrous separation

• Optimising the positioning and configuration of magnetic separation units

• Improving material-flow stability to reduce variability

• Increasing operational continuity through better maintenance planning and equipment selection

These improvements aim to maximise recovery, reduce unplanned downtime, and stabilise overall process performance.

Hospitality

The plant team welcomed us very warmly, and we sincerely thank them for their hospitality. This visit has established a strong foundation for future collaboration, and AKSA Process will continue to actively provide technical support at every stage of the optimization process.

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