A permeable reactive barrier (PRB) is a consolidated in situ technology for groundwater decontamination, but its long-term effectiveness, and thus the success of any remediation project, depends on the correct design in terms of geotechnical, chemical and hydraulic aspects. This paper examines the performance of a PRB and presents the results of an investigation into its long-term behaviour by using column tests. In particular, the geotechnical aspects involved in the design of a PRB and the effects of hydraulic conditions and contaminant concentration (nickel) are discussed. Moreover, the results of laboratory column tests carried out at various flow velocities and initial contaminant concentrations are discussed. The reactive media used in the tests are zero valent iron (ZVI) and a granular mixture of ZVI and pumice.
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1 April 2016
Research Article|
June 23 2014
Critical aspects related to Fe and Fe/pumice PRB design Available to Purchase
Nicola Moraci, PhD;
Nicola Moraci, PhD
Full Professor of geotechnical engineering
Department of Civil, Energy, Environmental and Materials Engineering (DICEAM), Mediterranea University of Reggio Calabria, Reggio Calabria, Italy
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Stefania Bilardi, PhD;
Stefania Bilardi, PhD
Research Fellow
Department of Civil, Energy, Environmental and Materials Engineering (DICEAM), Mediterranea University of Reggio Calabria, Reggio Calabria, Italy
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Paolo S. Calabrò, PhD
Paolo S. Calabrò, PhD
Assistant Professor in sanitary - environmental engineering
Department of Civil, Energy, Environmental and Materials Engineering (DICEAM), Mediterranea University of Reggio Calabria, Reggio Calabria, Italy
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Publisher: Emerald Publishing
Received:
November 22 2013
Accepted:
May 27 2014
ICE Publishing: All rights reserved
2016
Environmental Geotechnics (2016) 3 (2): 114–124.
Article history
Received:
November 22 2013
Accepted:
May 27 2014
Citation
Moraci N, Bilardi S, Calabrò PS (2016), "Critical aspects related to Fe and Fe/pumice PRB design". Environmental Geotechnics, Vol. 3 No. 2 pp. 114–124, doi: https://doi.org/10.1680/envgeo.13.00120
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