Environmental Engineering Reference
In-Depth Information
10
μ
m
10
m
μ
10
μ
m
10
μ
m
FIGURE 9.15
SEM photomicrographs of field samples of contaminated soil 10 years after
remediation (upper: A and B; lower: C and D).
The sample preparation process for some techniques is not very straightforward.
Though qualitative data can be easily obtained, getting quantitative data from a
particular technique may require more extensive sample preparation. However,
meaningful results can be obtained from a technique only from a properly prepared
specimen. Before any major investigation is initiated, the sample requirements
should be properly studied.
ACKNOWLEDGMENT
This chapter has drawn on research conducted at Louisiana State University over
the last two decades. The research was supported by various funding agencies,
such as the Waterways Experimental Station of the U.S. Army Corps of Engineers,
the U.S. Environmental Protection Agency, Environment Canada, the National
Science Foundation, the Louisiana Board of Regents, and a number of industrial
supporters, most notably Southern Company Services and the Electric Power
Research Institute.
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