Role of Fe(II)/Fe(III) systems in the reductive dehalogenation of TCE in groundwater

摘要

Considerable controversy regarding the participation of different iron species in the reductive dechlorination of trichloroethene (TCE) has lead to the development of several hypotheses. In all cases, the iron donates the electrons which are subsequently accepted by the TCE and lead to the release of chloride and the formation of the dechlorinated product(s). These products includes di-chloroethene (DCE) and vinyl chloride (VC), and possible non-chlorinated alkanes. The purpose of this study was to examine the potential reactivity of different iron species with regard to their participation in the reductive dechlorination of TCE.