Publication Details

Category Text Publication
Reference Category Journals
DOI 10.1002/ceat.201100227
Title (Primary) Electrode design for soil decontamination with radio-frequency heating
Author Roland, U.; Holzer, F.; Kraus, M.; Trommler, U.; Kopinke, F.-D.
Journal Chemical Engineering & Technology
Year 2011
Department TUCHEM
Volume 34
Issue 10
Page From 1652
Page To 1659
Language englisch
Keywords Biodegradation; Dielectric heating; Radio frequency; Soil remediation; Soil vapor extraction
Radio-frequency heating to enhance soil decontamination requires adjusted solutions for the electrode design depending on scale and remediation technique. Parallel plate electrodes provide widely homogeneous field and temperature distributions and are, therefore, most suitable for supporting biodegradation processes. For thermally enhanced soil vapor extraction, certain temperature gradients can be accepted and, therefore, the less-demanding geometry of rod-shaped electrodes is usually applied. For electrode lengths of some meters, a design with an air gap has to be used in order to focus heating to the desired depth. Perforated rod electrodes may be simultaneously employed as extraction wells. Placing an oxidation catalyst in situ within the electrodes is an option for handling of highly loaded air flows. Coaxial antenna may be utilized to selectively heat soil compartments far from the surface of the soil.
Persistent UFZ Identifier
Roland, U., Holzer, F., Kraus, M., Trommler, U., Kopinke, F.-D. (2011):
Electrode design for soil decontamination with radio-frequency heating
Chem. Eng. Technol. 34 (10), 1652 - 1659