Reduction of chlorinated solvents by fine-grained iron metal was studied in well-mixed
anaerobic batch systems in order to help assess the utility of this reaction in remediation of
contaminated groundwater. Iron sequentially dehalogenates carbon tetrachloride via
chloroform to methylene chloride. The initial rate of each reaction step was pseudo-first-
order in substrate and became substantially slower with each dehalogenation step. Thus,
carbon tetrachloride degradation typically occurred in several hours, but no significant ...