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Details of Grant 

EPSRC Reference: GR/R55153/01
Title: Extended Reactive Zones to Reduce Chlorinated Solvent Fluxes in Dual Porosity Aquifers: Laboratory Studies
Principal Investigator: Lerner, Professor DN
Other Investigators:
Leharne, Professor SA
Researcher Co-Investigators:
Project Partners:
EnviroMetal Technologies Inc. Environment Agency (Grouped) ICI
Ricardo Group
Department: Civil and Structural Engineering
Organisation: University of Sheffield
Scheme: Standard Research (Pre-FEC)
Starts: 01 February 2002 Ends: 31 January 2003 Value (£): 62,739
EPSRC Research Topic Classifications:
Assess/Remediate Contamination
EPSRC Industrial Sector Classifications:
Environment Water
Construction
Related Grants:
Panel History:  
Summary on Grant Application Form
Chlorinated hydrocarbon solvents such as TCE are the most widespread organic pollutants of groundwater. Permeable reactive barriers using zero-valent iron (Fe) are the favoured technology to destroy dissolved CHSs, but current designs are not suitable for fractured bedrock aquifers. A possibility would be to use fracking techniques (high pressure water/sand injection) to expand fractures and inject Fe into them, forming an extended reactive zone. The project is a laboratory study to develop the design parameters for a field trial of this technique. A range of flow through experiments will be conducted in an artificial fracture in Chalk, contained in a laboratory apparatus which allows monitoring of flow rates, permeability changes, influent and effluent chemistry, in-fracture chemistry. The results will be modelled with a comprehensive analytical solution to reactive transport in fractured rocks, and used to design a subsequent field trial.
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Organisation Website: http://www.shef.ac.uk