Pulsed discharge in the fluidized packed-bed reactor for toxic water remediation

The report is focused on description of novel technology for treatment of bulk toxic water. It is based on the pulsed electric discharge in the fluidized packed-bed reactor (FPBR), followed with a bio-treatment stage. The FPBR consists of several discharge cylindrical chambers, filled with dielectric beads of few mm in diameter, and low dielectric constant (polyethylene, or glass), through which a downward trickling water flow is organized of total throughput /spl ap/20 G/h. Sub-microsecond pulsed repetitive dielectric barrier discharge takes place in this packed-bed media between the coaxial electrodes. The residual pollutants are finally degraded in the bioreactor by a bio-consortium of activated acclimated sludge during the second treatment stage. The new technology is more compact compared with the one based on the aerosol discharge, and provides higher throughput. The main results of systematic degradation of water born chlorinated organic pollutants are summarized.