Prof. P. A. Christensen

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Updated: 28 Jan 09

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Electrochemical HydroDeHalogenation /continued

 So the technology works, and works very well! Electrochemical HDH looks like an ideal solution to, for example, the remediation of PCBs:

• As of a year or two ago, in the UK there were c. 300,000,000 litres of transformer oil contaminated with 1000 - 2000 ppm PCBs.
• There is up to a further c. 2,000,000 litres of “Askral” oil with up to 70% PCBs.
• The current adsorption-based treatment costs are c. £0.80 per litre of ‘standard’ oil and £5.00 per litre of Askral.
• In addition, there is a charge of £1.00 per kg of transformer to ‘wash’ it; transformers range from 400 kg to 400 Tonnes. 
• Incineration up to £2000 per tonne, adsorption up to £5000
  per tonne.
• Electrochemical HDH estimated at up to £70 per tonne….

BUT- no company will admit to having a problem with haolgenated organics of any kind..........

For papers on nitrate reduction using the same technology, click here.

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