Use of bench- and field-scale data for design of an in situ carbon tetrachloride bioremediation system

摘要

A suite of simulation models were developed as a design tool in support of an in situ bioremediation demonstration at the Hanford site in Washington state. The design tool, calibrated with field- and bench-scale data, was used to answer four field-scale system design questions: (1) What are the important reaction processes and kinetics; (2) How will biomass distribute in the aquifer in response to injected substrate; (3) What well configuration best ensures proper nutrient transport and process control; and (4) What operating and monitoring strategy should be used to confirm effective remediation. This paper does not describe the design tool itself, but describes how the design tool was used to optimize field site design parameters such as well spacing, hydraulic control, contaminant destruction, and nutrient injection strategies.