C-Tech Innovation has two technologies of significant benefit to the nuclear industry. EEOD is an effective, patented electrochemical process for removing chloride and organics (i.e ETDA, formic acid) from spent decontamination solutions generated during nuclear decommissioning operations. EASD is a method of surface removal of contaminated metals that offers efficiency and cost improvements over traditional mixed acid treatments.

In collaboration with

Enhanced Electrochemical Oxidative Decontamination

The ELENDES system in testing

Our collaboration with the National Nuclear Laboratory on the ELENDES (Electrochemical Enhancement of Nuclear Decontamination Solutions) project has demonstrated (via active trials) the effectivness of an electrochemical process in removing chloride (sub 10 ppm) and destroying 100% of the complexing ability of EDTA in 1l batches of acidic spent decontamination solutions.

The process hardware is currently being scaled up to allow us to conduct active trails at the 10l scale and an outline design for a 480l version has already been generated. C-Tech Innovation are keen to replicate the sucess of the ELENDES project and work with companies in the nuclear sector to develop nuclearised versions of our technologies to meet specific decommissioning and decontamination challenges.

Electrolytically Assisted Surface Decontamination

Stainless steel after EEOD

Surface removal of stainless steel

Traditional techniques for surface decontamination of metals carry a number of drawbacks, including risks for human operators of machinery and both the volume and toxicity of wastes produced in the process. Electrolytically Assisted Surface Decontamination (EASD) is a considerable improvement on mixed acid/electrolytic methods, drastically reducing process times and also enabling a reduction in the strength of acids used in the process.

Given that LLW steel may typically only be contaminated to a surface layer of less than 100 microns, our EASD process can facilitate economic re-use rather than disposal of this waste steel, making it increasingly attractive to operators of disposal facilities.

Electrochemistry group leader John Collins

John Collins

Principal Engineer, Electrochemistry

Have a question about nuclear decontamination?

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