A Novel Advanced Ozonation Process for the Destruction of Chlorinated and Non-chlorinated Organics

Period of Performance: 09/02/1992 - 09/02/1994

$506K

Phase 2 SBIR

Recipient Firm

Lynntech, Inc.
COLLEGE STATION, TX 77845
Principal Investigator

Research Topics

Abstract

An electrochemical ozone generation/UV oxidation process was susccessfully used for decomposing hazardous organics in contaminated water. Lynntech, Inc., has developed and demonstrated that an innovative electrochemical process can be employed to produce high concentrations of ozone using water as the source material. Water samples containing 50ppm benzene and trichloroethylene were effectively treated, volatile organic release was minimized and highly favorable oxidation kinetics were obtained during laboratory tests. Using a bench-scale electrochemical reactor, a well-documented technical foundation was established for membrane and electrode assemblies, electrocatalyst deposition, electrode/solid electrolyte interfaces, current efficiency and other key reactor parameters. By combining ozone and UV radiation, the resulting Advanced Oxidation Process has the potential for being highly cost-competitive when compared with conventional air-feed corona-discharge systems. Using the broad-based positive results of the Phase I research, Lynntech has prepared a Phase II proposal for: (i) scale-up of the electrochemical ozone generator; (ii) modelling, design and scale-up of an advanced (packed bed) UV reactor; (iii) integration and testing of the scaled-up electrochemical ozone generator/advanced UV reactor, and (iv) assembly and testing of a pilot-scale demonstration unit at a field test site.