ABSTRACT

The field demonstration at Hill AFB OU1 provided valuable information concerning the potential effectiveness of the SPME technology. However, since the conditions at OU1 were unique in a few specific ways, it may be difficult to extrapolate these results to sites that are significantly different. OU1 was unique in terms of the NAPL present and the relatively homogeneous and permeable soils. Below is a summary of the potential performance of the technology:

The SPME technology is not yet a fully developed technology. Consequently, additional laboratory and field testing and development are required on potential sites. Additional laboratory and field-scale tests and demonstrations are needed to address the following issues that may be important in full-scale implementation:

27.2 SITE CHARACTERISTICS AFFECTING PERFORMANCE, APPLICABILITY, AND COST

As with any

in situ

remediation technology, the SPME technology has a certain niche of site characteristics where it is likely to be applicable. Chapter 2 of Simpkin et al., 1999 provides a general description of the niche of surfactant/cosolvent flushing technologies. Many of these are also applicable to the SPME technology. Table 27.1 provides a summary of the site characteristics affecting applicability, performance, and cost of the technology. Because the technology has had limited field demonstrations, some of the following is speculation based on experience at other sites with similar technologies.