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| A Experimental Research on Static Scale and Corrosion inhibition Using Low Frequency Electromagnetic Treatment of Reclaimed Water |
| CHI Jin-Bao |
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Abstract According to scaling and corrosion problems during operation process of circulating cooling water, static water quality stabilization experiment was done on treatment reclaimed water with low frequency gradient electromagnetic field. After optimizing the electromagnetic operation parameters by orthogonal experiment, the scale inhibiting rate came to 21.46% and the corrosion inhibition came to 12.31% under disposable electromagnetic treatment. These two values could be improved to 35.30% and 17.50% respectively, after multiple circulating electromagnetic treatments for 2.0h. It was found by SEM(Scanning Electronic Microscope) and XRD(X-Ray Diffraction) analyses that electromagnetic treatment could inhibit crystal growth and change crystalline structure of CaCO3, promote formatting of compact γ-Fe2O3 oxide film on iron surface, which works on reacting against corrosion.
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Received: 09 May 2008
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2009, Vol. 1 