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A single borehole dilution technique to measure the hydrogeological properties of saturated landfilled waste

Record type: Conference or Workshop Item (Paper)

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.

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Citation

Rollinson, J., Rees-White, T., Barker, J.A. and Beaven, R.P. (2010) 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, pp. 105-112.

More information

Published date: September 2010
Venue - Dates: Waste 2010 Conference, United Kingdom, 2010-09-28 - 2010-09-29
Organisations: Faculty of Engineering and the Environment

Identifiers

Local EPrints ID: 342209
URI: http://eprints.soton.ac.uk/id/eprint/342209
PURE UUID: 04d2a2a7-efe3-4c26-85fb-3da119a7ab8b
ORCID for T. Rees-White: ORCID iD orcid.org/0000-0001-9009-8432
ORCID for R.P. Beaven: ORCID iD orcid.org/0000-0002-1387-8299

Catalogue record

Date deposited: 15 Aug 2012 15:59
Last modified: 18 Jul 2017 05:30

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Contributors

Author: J. Rollinson
Author: T. Rees-White ORCID iD
Author: J.A. Barker
Author: R.P. Beaven ORCID iD

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