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EFFECTS OF PH ON DECHLORINATION OF TRICHLOROETHYLENE BY ZERO-VALENT IRON
Citation:
Chen**, J. L., J A. Ryan*, S R. AlAbed*, AND Z. Li**. EFFECTS OF PH ON DECHLORINATION OF TRICHLOROETHYLENE BY ZERO-VALENT IRON. Presented at Presention at American Chemical Society 2000 Spring Meeting, San Francisco, CA, 3/27-31/00.
Description:
The reduction rates of trichloroethylene (TCE) using zero-valent iron (ZVI) and the rates of iron hydrolysis were characterized at pH values of 5 to 10. The reduction of TCE by ZVI was carried out in batch reactors filled with pH-buffered (phosphate based) solutions under anaerobic condition. Results indicate that the surface normalized reaction rate constants of TCE reduction and iron hydrolysis decreased approximately linearly with pH. The data also suggests that the effects of iron oxide on the reaction rate constants needs to be characterized in future research.