Rollinson, J., Rees-White, T., Barker, J.A. and Beaven, R.P.
A single borehole dilution technique to measure the hydrogeological properties of saturated landfilled waste
At Waste 2010 Conference, United Kingdom.
28 - 29 Sep 2010.
8 pp, .
Full text not available from this repository.
A single borehole dilution test is a relatively simple hydrogeological technique used to determine the volumetric flow rate of groundwater through a borehole. The technique potentially provides a means to obtain hydrogeological properties without the need to undertake a pumping test, avoiding the logistical difficulties of such testing. The use of the technique in landfills has been explored by application in two landfills in south-east England, providing data to inform activities such as in-situ remediation. The tests used fluorescent dye tracers, rhodamine WT and sodium fluorescein, with concentrations monitored using submersible fluorimeters. Results from nine dilution tests gave average Darcy velocities (volumes per unit area per unit time) ranging over two orders of magnitude: 2.6 x 10-3 to 2.8 x 10-1 m/day. Hydraulic conductivities, inferred using estimated hydraulic gradients, ranged from 6.7 x 10-2 to 7.1 m/day (7.7 x 10-7 m/s to 8.3 x 10-5 m/s) and compared favourably with pumping test data. The tests revealed zones of preferential flow and zones of negligible flow.
Conference or Workshop Item
|Venue - Dates:
||Waste 2010 Conference, United Kingdom, 2010-09-28 - 2010-09-29
||Faculty of Engineering and the Environment
||15 Aug 2012 15:59
||17 Apr 2017 16:41
|Further Information:||Google Scholar|
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