Principles and Practices of Enhanced Anaerobic Bioremediation of Chlorinated Solvents

Abstract

Abstract : The Tri-Services principles and practices manual provides a road map for appropriate and successful implementation of, while identifying red flags that may limit success. Using a comprehensive conceptual site model, decision matrices can be used to guide the user in appropriate site selection for applying enhanced bioremediation. Evaluation of suitable hydrogeological, geochemical, and biological site conditions increases the confidence in deploying enhanced bioremediation for remediation of chlorinated solvents in groundwater. Once it has been determined that enhanced bioremediation is suitable for application at a site, the Tri-Services principles and practices manual provides further guidance on the design of appropriate enhanced bioremediation system configurations and selection of the appropriate substrate for application. Several tools are also are described within the Tri-Services principles and practices manual that are useful for optimizing the application of enhanced bioremediation, including small-scale pilot-tests, microcosm studies, molecular screening techniques, and bioaugmentation. These tools are not required in all cases, and rationale is provided for when they should be used. These decision matrices within the Tri-Services principles and practices manual are presented to guide Remedial Project Managers through the site selection process, appropriate bench- or pilot-testing, development of optimal system configurations, and selection of substrate type.