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PILOT SCALE REACTOR FOR ELECTROCHEMICAL DECHLORINATION OF MODEL CHLORINATED CONTAMINANTS
Citation:
AGARWAL, S., S. R. AL-ABED, AND D. D. DIONYSIOU. PILOT SCALE REACTOR FOR ELECTROCHEMICAL DECHLORINATION OF MODEL CHLORINATED CONTAMINANTS. Presented at 232ND American Chemical Society National Meeting, San Francisco, CA, September 10 - 14, 2006.
Impact/Purpose:
to present information
Description:
Electrochemical degradation (ECD) is a promising technology for in-situ remediation of diversely contaminated submarine matrices, by the application of low level DC electric fields. This study, prompted by successful bench-scale electrochemical dechlorination of Trichloroethylene, involves development and parametric characterization of a pilot-scale ECD reactor which mimics flow in natural systems and uses environmentally friendly graphite electrodes for degrading model organic contaminants. Degradation of organics in this electrochemical reactor involves driving the contaminants to the electrodes by forced convection where they are degraded or transformed by electron transfer taking place between the compound and the electrode. The development of the reactor for the ECD of contaminants was done in the following phases - I: Fabrication, II: Calibration of sensors/probes, III: Shakedown testing, IV: 'Dry' Runs and V: ECD of contaminated matrices.