Response to Comment on '1,1,2,2-Tetrachloroethane Reactions with OH~-, Cr(II), Granular Iron, and a Copper-Iron Bimetal: Insights from Product Formation and Associated Carbon Isotope Fractionation'

摘要

Dr. Noubactep takes exception to our use of batch reactors (1,2). We concur that they do not directly reflect conditions in field-scale granular iron permeable reactive barriers (PRBs), and that column reactors, oft-employed in our previous work (3-8), more accurately simulate field-scale hydrodynamic regimes. Even conditions in long-term column studies are not, however, invariably representative of PRBs, as each field site possesses unique hydrologic and geochemical attributes. Such complexities are intrinsic to environmental science.