Engineering and Implementation Challenges for Chlorinated Solvent Remediation

Abstract

This chapter identifies and discusses many of the challenges of evaluating, engineering (designing) and implementing in situ remediation technologies for chlorinated solvent plumes in groundwater. Most challenges discussed are not unique to a specific remediation technology, although there are technology-specific challenges. For example, adequate delivery of reagents is the most universal challenge because so many in situ remediation technologies rely on injecting treatment reagents into a subsurface that is often highly heterogeneous. The reagents used may be liquids, solids or gases, and the challenges associated with all three of these phases are unique to some extent. While this chapter cannot cover all of the challenges faced during in situ remediation, it is hoped that the discussion presented will enable the reader to extrapolate to other challenges not covered.