Modeling microbial enhancement of Zn~(II) and Pb~(II) transport in columns packed with geologic media

摘要

Bench-scale experiments demonstrated enhanced Zn~(II) and Pb~(II) transport in columns packed with either Fe/Al-oxide coated sand or limestone chips when mobile bacteria were injected along with the metal, relative to experiments performed in the absence of bacteria. The transport of the metal through the column will be modeled using surface complexation chemistry coupled with a contaminant transport model.