Results of field tests on radio-wave heating for soil remediation.
After developing the radio-wave technique for various conditions in laboratory-scale and technical plant-scale experiments, field tests in combination with biodegradation and soil vapor extraction were carried out at three sites: (i) a bioremediation facility for ex situ cleaning of soil, (ii) in situ remediation of contamination at a former storage facility for organic solvents, and (iii) a polluted soil under a former petrol station. Various electrode arrangements such as parallel plates, rod arrays, and coaxial antenna were applied in order to meet the site-specific requirements optimally. Soil temperatures between 35 and 100 degrees C were established. The successful tests gave much insight into the engineering, physical, biological, and chemical aspects of radio-wave application. General conclusions on the appropriateness and competitiveness of the radio-wave method as well as on preferred application fields are drawn.
Roland
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UFZ - Helmholtz Centre for Environmental Research, Department of Environmental Technology, Permoserstrasse 15, D-04318 Leipzig, Germany. ulf.roland@ufz.de
Holzer
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Buchenhorst
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Kopinke
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D052918:Environmental Restoration and Remediation / Q000379:methods*; D006358:Hot Temperature; D011846:Radio Waves; D012989:Soil Pollutants
D012989:Soil Pollutants