Coupling of adsorption with electrochemical oxidation is a novel approach to the treatment of aqueous organics that has demonstrated a number of key benefits over the individual application of these processes. This is based on a highly conducting adsorbent material, developed under the trade name Nyex™, that is able to rapidly adsorb the organics and anodically oxidise them within a single treatment unit. Successful scale up of the process (in both continuous and batch operation) has been achieved for the polishing of two separate groundwaters (one containing relatively simple petrol, diesel and their degradation products and the other with a range of more complex organics). Treatment showed that low discharge consents can be achieved, including the removal of more complex and difficult to treat compounds to below the limits of detection. Energy consumption for electrochemical regeneration was relatively low (down to 0.5 kWh/m3) suggesting that the process could be a practical alternative approach for effluent polishing.
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Research Article|
September 01 2013
Combining adsorption with anodic oxidation as an innovative technique for removal and destruction of organics
N. W. Brown;
1Arvia Technology Ltd, Daresbury Innovation Centre, Keckwick Lane, Daresbury, WA4 4FS, UK
E-mail: nigel.brown@arviatechnology.com
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E. P. L. Roberts
E. P. L. Roberts
2Department of Chemical and Petroleum Engineering, Schulich School of Engineering, University of Calgary, 2500 University Drive NW, Calgary AB, T2N 1N4, Canada
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Water Sci Technol (2013) 68 (6): 1216–1222.
Article history
Received:
January 10 2012
Accepted:
March 28 2013
Citation
N. W. Brown, E. P. L. Roberts; Combining adsorption with anodic oxidation as an innovative technique for removal and destruction of organics. Water Sci Technol 1 September 2013; 68 (6): 1216–1222. doi: https://doi.org/10.2166/wst.2013.297
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