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Influence of Flow Rate on Transport of Bacteriophage in Shale Saprolite

^a Dep. of Geological Sciences, Univ. of Tennessee, Knoxville, TN 37996-1410
^b Lexington, VA (formerly UT-Knoxville)
^c USDA-ARS National Sedimentation Lab., 598 McElroy Dr., Oxford, MS 38655

View larger version (57K): [in a new window]   Fig. 1. (A) Photograph of the end of the saprolite column showing bedding planes (vertical in the photograph) and fractures cutting across the bedding. (B) Schematic diagram of the column setup used for the miscible displacement experiments.

View larger version (45K): [in a new window]   Fig. 2. Influence of flow rate on transport of bacteriophage in shale saprolite: (A) 0.0075 m d-1, (B) 0.039 m d-1, (C) 0.19 m d-1, and (D) 0.96 m d-1.

View larger version (24K): [in a new window]   Fig. 3. Influence of change in flow rate on effluent concentrations during flush between Experiments 1 and 4.

View larger version (20K): [in a new window]   Fig. 4. Recovery of tracers as a function of flow rate. Open symbols represent percent recovery calculated based on measured concentrations in effluent. Closed symbols represent calculations that include a correction for inactivation of PRD-1 and MS-2 in the column.