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. Author manuscript; available in PMC: 2010 Jul 7.
Published in final edited form as: Chemosphere. 2009 Jan 20;75(4):542–548. doi: 10.1016/j.chemosphere.2008.12.004

Figure 1.

Figure 1

Comparison of elution tailing behavior for the long-term, synthetically-aged and freshly-amended aquifer material. Also included are results obtained for an experiment conducted using a column containing no aquifer material (Apparatus), designed to evaluate trichloroethene elution tailing associated with the experimental apparatus. (A) Column A: High-concentration trichloroethene (~900 mg L−1) sequential miscible-displacement experiments. (B) Column B: Low-concentration trichloroethene (~10 mg L−1) sequential miscible-displacement experiments. (C) Column C and Column D: Independent, high-concentration trichloroethene (~900 mg L−1) miscible-displacement experiments.